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Contents
- The climate of San Andrés
- The best time to visit San Andrés
- The worst time to visit San Andrés
- Spring weather in San Andrés
- Summer weather in San Andrés
- Autumn weather in San Andrés
- Winter weather in San Andrés
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of San Andrés
San Andrés, Colombia, falls under the Am classification of Köppen climate catalog - the Tropical monsoon climate category. This geographic location translates into a pronounced wet climate, spiced with warm temperatures and a high degree of humidity. Rainfall varies from approximately 26mm (1.02") in the month of March to as high as 232mm (9.13") in October. Twelve months reveal consistent rainfall, with areas of acceleration and deceleration throughout the year.
Temperatures in San Andrés prefer to linger around the higher extremes. The lowest temperature recorded is 26.2°C (79.2°F) in March whereas the highest temperature hits 28.9°C (84°F) in September. The mercury stretches between 26.2°C (79.2°F) to 28.9°C (84°F) through the year. Meanwhile, wind speeds shift from a minimum of 17.5km/h (10.9mph) in September to a peak of 28.5km/h (17.7mph) in both January and December. A presence of relatively high wind speeds positions alongside high temperatures and a persistent percentage of rainfall, establishing a robust tropical climate atmosphere.
Cloud coverage sits within the realm of 39% to 50% the entire year, reaching the maximum in June and July. 1012.7mb is the average pressure in January and March, while in October, it shrinks to its lowest at 1009.5mb. The months neither reveal exceptionally cloudy days nor an unencumbered sky throughout the year. Collectively, the climatic data captures a humid tropical climate dominion, with regular rainfall, warm temperatures, and significant wind speeds.
Temperatures in San Andrés prefer to linger around the higher extremes. The lowest temperature recorded is 26.2°C (79.2°F) in March whereas the highest temperature hits 28.9°C (84°F) in September. The mercury stretches between 26.2°C (79.2°F) to 28.9°C (84°F) through the year. Meanwhile, wind speeds shift from a minimum of 17.5km/h (10.9mph) in September to a peak of 28.5km/h (17.7mph) in both January and December. A presence of relatively high wind speeds positions alongside high temperatures and a persistent percentage of rainfall, establishing a robust tropical climate atmosphere.
Cloud coverage sits within the realm of 39% to 50% the entire year, reaching the maximum in June and July. 1012.7mb is the average pressure in January and March, while in October, it shrinks to its lowest at 1009.5mb. The months neither reveal exceptionally cloudy days nor an unencumbered sky throughout the year. Collectively, the climatic data captures a humid tropical climate dominion, with regular rainfall, warm temperatures, and significant wind speeds.
The best time to visit San Andrés
While San Andrés, with its ever-welcoming tropical climate, looks inviting throughout the year, the discerning visitor might opt for an improved experience. Months from March to June can potentially afford the best visitor experience. During this time, the rainfall drops from 34mm (1.34") in February to its lowest at 26mm (1.02") in both March and April. Also, these months possess the least amount of rainy days, from 15.7 days in April to 21.1 days in May.
Concurrently, the average temperatures are modest - they range from 27°C (80.6°F) to 27.8°C (82°F), making these months quite comfortable. Neither too hot nor too cold, temperatures during these months are ideal for a visit. Further adding to the attraction, relative humidity percentages are comparatively moderate between 78% to 80%, the sea temperatures remain warm from 27°C (80.6°F) to 28.4°C (83.1°F), and average sunlight hours stretch from 12.1 to 12.7 each day.
Concurrently, the average temperatures are modest - they range from 27°C (80.6°F) to 27.8°C (82°F), making these months quite comfortable. Neither too hot nor too cold, temperatures during these months are ideal for a visit. Further adding to the attraction, relative humidity percentages are comparatively moderate between 78% to 80%, the sea temperatures remain warm from 27°C (80.6°F) to 28.4°C (83.1°F), and average sunlight hours stretch from 12.1 to 12.7 each day.
The worst time to visit San Andrés
For visitors sensitive to heavy rainfall and extreme humidity, the months from September to November count as the least favorable time to visit San Andrés. During these months, the rainfall reaches its peak, from 124mm (4.88") in September, climbing to 232mm (9.13") in October and then falling back to 217mm (8.54") in November. Accordingly, this period also sees the highest number of rainy days, 24.1 in September, rising to 27.2 in October, and then just slightly easing to 26.8 in November.
In addition, these months experience the highest average temperatures of the year, from 28.5°C (83.3°F) in September to 28.8°C (83.8°F) in October, finally dropping to 28.3°C (82.9°F) in November. With increased temperatures and highest yearly rainfall, these months also record the highest average relative humidity of the year from 77% in September up to 78% in November.
In addition, these months experience the highest average temperatures of the year, from 28.5°C (83.3°F) in September to 28.8°C (83.8°F) in October, finally dropping to 28.3°C (82.9°F) in November. With increased temperatures and highest yearly rainfall, these months also record the highest average relative humidity of the year from 77% in September up to 78% in November.
Spring weather in San Andrés
In San Andrés, the Spring months of March, April, and May see an abundance of sunshine, with an average of 8.3 hours in March then slightly decreasing to 7.6 hours in May. Daylight hours vary from 12.1 hours in March to 12.7 hours in May. Sea temperatures during this time range between welcoming 27.4°C (81.3°F) and a warm 28.4°C (83.1°F). Wind speed data suggests moderate speeds from 25.5km/h (15.8mph) in March to 22.2km/h (13.8mph) in May. The rainfall is least during spring, with 26mm (1.02") in March and April, then dramatically increases to 112mm (4.41") in May.
Summer weather in San Andrés
Between June to August, San Andrés exhibits standard tropical summer conditions. The average temperature peaks at 28.4°C (83.1°F) in June, stays there in July, and finally touches 28.5°C (83.3°F) in August. Relative humidity also rises to an average of 81% in these months. The average rainfall surges to 158mm (6.22") in June, increasing to 126mm (4.96") in July and staying high at 127mm (5") in August. With an average wind speed of 24.7km/h (15.3mph) in June, it rises slightly to 28.5km/h (17.7mph) in July and falls back dramatically to 21.9km/h (13.6mph) in August.
Autumn weather in San Andrés
Autumn, from September to November, assists in maintaining the tropical image of San Andrés. Average temperatures range from 28.5°C (83.3°F), peaking to 28.8°C (83.8°F) in October, and then dropping to 28.3°C (82.9°F) in November. The average monthly rainfall turns high at 124mm (4.88") in September, reaching a peak of 232mm (9.13") in October and dropping to 217mm (8.54") in November. The average wind speeds are generally lower in this season, starting from 17.5km/h (10.9mph) in September, inching up to 17.6km/h (10.9mph) in October, and then increasing to 24.5km/h (15.2mph) in November.
Winter weather in San Andrés
Winter in San Andrés brings with it subtly moderated temperatures and a reduction in rainfall. December brings a shift in temperature to an average of 27.9°C (82.2°F). January and February steady the temperature at 27.1°C (80.8°F) and 27.2°C (81°F) respectively. Rainfall during this period tapers off to 124mm (4.88") in December, 59mm (2.32") in January and steadies at 34mm (1.34") in February. Wind speeds during winter also vary, with 28.5km/h (17.7mph) in December, slightly lower at 28.4km/h (17.6mph) in January and then dropping to 27.1km/h (16.8mph) in February. Overall, winter months manage to maintain a mild and comfortable climate in San Andrés.
Weather in January
The start of the year in San Andrés, Colombia brings an atmospheric pressure averaging 1012.7mb and a wind gust reaching speeds up to 40.3km/h (25mph). It is common to experience slight humid conditions, although these are not extreme. Weather in January »
Weather in February
The month of February shows comparable weather conditions from January in San Andrés. However, there is a reduction in cloud cover and a diminution in rainfall. Visitors can anticipate more sunshine hours per day and the sea temperature remains ideal for water-based activities. Weather in February »
Weather in March
By March, San Andrés sees a further decline in rainfall, reaching 26mm (1.02") for the month, making this a relatively drier period. Contrarily, there is an increase in the hours of daylight, offering longer opportunities for exploration and enjoyment. Weather in March »
Weather in April
April presents a blend of conditions in San Andrés, with a fairly stable temperature and humidity. The UV index remains consistent, requiring the same level of protection as earlier months. While the weather pattern is similar to March, sea temperatures continue to rise slightly, enhancing ocean-based activities. Weather in April »
Weather in May
May signals the start of a notably wet period in San Andrés, with rainfall increasing dramatically to 112mm (4.41"). Consequently, visitors can anticipate occasional showers throughout the month. Despite the precipitation, average sea and air temperatures continue to rise, keeping the tropical atmosphere constant. Weather in May »
Weather in June
The peak of the wet season arrives in June, registering the highest rainfall of 158mm (6.22"). Nonetheless, the increased rain does little to dampen the tropical environment, with the sea temperature reaching its warmest. Indoor activities become more appealing during showers, while sunnier intervals present breaks for outdoor explorations. Weather in June »
Weather in July
July continues the pattern of a wet season in San Andrés, with little relief from the rains of the previous months. However, there is a slight decrease in both humidity and temperature compared to June. Summer vacationers can still find enjoyment from the still-warm sea, and the abundant rainfall ensures a lush and vibrant landscape. Weather in July »
Weather in August
August in San Andrés welcomes a minor decrease in rainfall and offers a small break from the extended wet season. However, persisting rains should still be anticipated as part of the tropical experience. The relatively high temperatures and humidity demonstrate San Andrés' tropical climate character, and sunshine hours remain ample for daytime activities. Weather in August »
Weather in September
San Andrés in September experiences marginally hotter conditions with a peak temperature of 28.9°C (84°F) and a decreased presence of rainfall. A slight reduction of wind speed generates calmer conditions, making September an appropriate month for boat rides and other water sports. Weather in September »
Weather in October
October remains warm and brings the highest rainfall for the year, amassing 232mm (9.13") across San Andrés. However, it also enjoys extended hours of sunshine, allowing plenty of opportunities for activities during the sunny intervals. Weather in October »
Weather in November
November in San Andrés delivers the least sunshine days of the year, yet the island continues to experience tropical weather features. While there is a decline in temperature from the month before, the drop is subtle and may go unnoticed. Weather in November »
Weather in December
Closing out the year, December in San Andrés brings cooler temperatures, with the lowest sea temperature of 28.1°C (82.6°F). However, this relatively "cool" period doesn't detract from the overall tropical experience, as the climate remains invitingly warm. Weather in December »
[Resources]Frequently asked questions
How much does it rain in San Andrés?
Throughout the year, in San Andrés, Colombia, there are 276.2 rainfall days, and 1366mm (53.78") of precipitation is accumulated.
What are the months with the highest UV index in San Andrés?
The months with the highest UV index are January through December, with an average maximum UV index of 7.
When is the lowest UV index in San Andrés?
January through December, with an average maximum UV index of 7, are months with the lowest UV index in San Andrés.
When is the sea coldest in San Andrés?
February is the month with the coldest seawater, with an average sea temperature of 27°C (80.6°F).
What month has the most sunshine in San Andrés?
February has the most sunshine of the year in San Andrés, Colombia, with an average of 8.4h of sunshine.
What month is the coldest in San Andrés?
San Andrés's coldest month, March, registers temperatures that range from a high of 27°C (80.6°F) to a low of 26.2°C (79.2°F).
What is the driest month in San Andrés?
March is the month with the least rainfall in San Andrés. Rain falls for 18 days and accumulates 26mm (1.02") of precipitation.
What is the most humid month in San Andrés?
The months with the highest humidity are June and July, with an average relative humidity of 81%.
When are the longest days in San Andrés?
With an average of 12h and 54min of daylight, June has the longest days of the year in San Andrés, Colombia.
What part of the year is the hottest in San Andrés?
In San Andrés, the average highest temperatures are observed in September, with a high of 28.9°C (84°F) and a low of 28°C (82.4°F).
When is the sea warmest in San Andrés?
September is the month with the warmest seawater, with an average sea temperature of 29.4°C (84.9°F).
What is the least humid month in San Andrés?
With an average relative humidity of 76%, October is the least humid month in San Andrés.
What is the rainiest month in San Andrés?
October is the month with the most rainfall. Rain falls for 27.2 days and accumulates 232mm (9.13") of precipitation.
What is the month with the least sunshine in San Andrés?
With an average of 5.8h of sunshine, November has the least sunshine of the year in San Andrés, Colombia.
What is the month with the shortest days in San Andrés?
The month with the shortest days is December, with an average of 11h and 24min of daylight.
Is there Daylight Saving Time (DST) in San Andrés?
San Andrés does not observe Daylight Saving Time (DST). -05 timezone is used throughout the entire year.
Average temperature
San Andrés, Colombia
The warmest month (with the highest average high temperature) is September (28.9°C).
The month with the lowest average high temperature is March (27°C).
The month with the highest average low temperature is September (28°C).
The coldest month (with the lowest average low temperature) is March (26.2°C).
Average pressure
San Andrés, Colombia
- Average pressure in January:
1012.7mbar - Average pressure in February:
1012.6mbar - Average pressure in March:
1012.7mbar - Average pressure in April:
1011.6mbar - Average pressure in May:
1010.7mbar - Average pressure in June:
1010.5mbar
- Average pressure in July:
1011mbar - Average pressure in August:
1010.6mbar - Average pressure in September:
1010.1mbar - Average pressure in October:
1009.5mbar - Average pressure in November:
1010.3mbar - Average pressure in December:
1011.5mbar
The months with the highest atmospheric pressure are January and March (1012.7mbar).
The month with the lowest atmospheric pressure is October (1009.5mbar).
Average wind speed
San Andrés, Colombia
- Average wind speed in January:
28.4km/h - Average wind speed in February:
27.1km/h - Average wind speed in March:
25.5km/h - Average wind speed in April:
23km/h - Average wind speed in May:
22.2km/h - Average wind speed in June:
24.7km/h
- Average wind speed in July:
28.5km/h - Average wind speed in August:
21.9km/h - Average wind speed in September:
17.5km/h - Average wind speed in October:
17.6km/h - Average wind speed in November:
24.5km/h - Average wind speed in December:
28.5km/h
The windiest months (with the highest average wind speed) are July and December (28.5km/h).
The calmest month (with the lowest average wind speed) is September (17.5km/h).
Average humidity
San Andrés, Colombia
The months with the highest relative humidity are June and July (81%).
The month with the lowest relative humidity is October (76%).
Average rainfall
San Andrés, Colombia
- Average rainfall in January:
59mm - Average rainfall in February:
34mm - Average rainfall in March:
26mm - Average rainfall in April:
27mm - Average rainfall in May:
112mm - Average rainfall in June:
158mm
- Average rainfall in July:
126mm - Average rainfall in August:
127mm - Average rainfall in September:
124mm - Average rainfall in October:
232mm - Average rainfall in November:
217mm - Average rainfall in December:
124mm
The wettest month (with the highest rainfall) is October (232mm).
The driest month (with the least rainfall) is March (26mm).
Average rainfall days
San Andrés, Colombia
- Average rainfall days in January:
24.4 days - Average rainfall days in February:
19.8 days - Average rainfall days in March:
18 days - Average rainfall days in April:
15.7 days - Average rainfall days in May:
21.1 days - Average rainfall days in June:
23.6 days
- Average rainfall days in July:
24.8 days - Average rainfall days in August:
23.2 days - Average rainfall days in September:
24.1 days - Average rainfall days in October:
27.2 days - Average rainfall days in November:
26.8 days - Average rainfall days in December:
27.5 days
The month with the highest number of rainy days is December (27.5 days).
The month with the least rainy days is April (15.7 days).
Average sea temperature
San Andrés, Colombia
The best month for swimming (with the highest average sea temperature) is September (29.4°C).
The coldest month (with the lowest average sea temperature) is February (27°C).
Average daylight / Average sunshine
San Andrés, Colombia
- Average daylight in January:
11h and 3min - Average daylight in February:
11h and 4min - Average daylight in March:
12h and 1min - Average daylight in April:
12h and 2min - Average daylight in May:
12h and 4min - Average daylight in June:
12h and 5min
- Average daylight in July:
12h and 5min - Average daylight in August:
12h and 3min - Average daylight in September:
12h and 1min - Average daylight in October:
11h and 5min - Average daylight in November:
11h and 4min - Average daylight in December:
11h and 2min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in January:
8h and 2min - Average sunshine in February:
8h and 2min - Average sunshine in March:
8h and 2min - Average sunshine in April:
8h and 2min - Average sunshine in May:
7h and 4min - Average sunshine in June:
7h and 1min
- Average sunshine in July:
7h and 4min - Average sunshine in August:
8h and 1min - Average sunshine in September:
8h and 2min - Average sunshine in October:
8h and 0min - Average sunshine in November:
5h and 5min - Average sunshine in December:
7h and 3min
The month with the most sunshine is February (Average sunshine: 8h and 24min).
The month with the least sunshine is November (Average sunshine: 5h and 48min).
Average sunshine days
San Andrés, Colombia
- Average sunshine days in January:
3.3 days - Average sunshine days in February:
4.3 days - Average sunshine days in March:
7 days - Average sunshine days in April:
7.9 days - Average sunshine days in May:
6.8 days - Average sunshine days in June:
4.7 days
- Average sunshine days in July:
4.5 days - Average sunshine days in August:
5.6 days - Average sunshine days in September:
4.9 days - Average sunshine days in October:
3.4 days - Average sunshine days in November:
1.5 days - Average sunshine days in December:
1.6 days
The month with the most sunshine days is April (7.9 days).
The month with the least sunshine days is November (1.5 days).
Average UV index
San Andrés, Colombia
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover
San Andrés, Colombia
The months with the most cloud cover are June and July (Cloud cover 50).
The month with the least cloud cover is February (Cloud cover 39).
Average visibility
San Andrés, Colombia
The months with the highest visibility are January, February, March, April, May, June, July, August, September and December (10km).
The months with the lowest visibility are October and November (9km).
San Andrés, Colombia
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