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Contents
- The climate of San Pedro
- The best time to visit San Pedro
- The worst time to visit San Pedro
- Spring weather in San Pedro
- Summer weather in San Pedro
- Autumn weather in San Pedro
- Winter weather in San Pedro
- 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 daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of San Pedro
San Pedro, set in the heart of Costa Rica, is governed by an Am climate under the Köppen climate classification. This denotes a tropical monsoon climate that controls the town's weather paradigms throughout the year. A glance at the year-round weather data reveals the climate story of San Pedro.
Temperature variations manifest a narrow range throughout the year, with average maximum temperatures flowing from 23.9°C (75°F) in the colder month of January, to the pinnacle of 26°C (78.8°F) in the heightened warmth of April. The town experiences an average minimum temperature fluctuating between 13.8°C (56.8°F) to 17°C (62.6°F). The data reveals a temperate year-round climate, never too cold, yet not excessively hot either.
Humidity pervades the atmosphere of San Pedro, bouncing around an average relative value of 75% to 91%. This level of humidity is expecting in a Tropical Monsoon climate, making the atmosphere perceptibly moist, especially from May to October.
Distinguishing San Pedro's weather is a prolific amount of rain. The town receives most rainfall from May to October, a deluge averaging between 301mm (11.85") and a peak of 438mm (17.24") in October. Correspondingly, these months also experience the greatest number of rainfall days, nearing a full month. Conversely, rainfall ebbs considerably from January to April, averaging from 26mm (1.02") to 100mm (3.94") only.
Despite the extensive rains, San Pedro enjoys a healthy daylight of about 11.6 to 12.7 hours throughout the year. Correspondingly, the average hours of sunshine range from a minimum of 5.8 hours in October to maximum of 9.2 hours in February.
Temperature variations manifest a narrow range throughout the year, with average maximum temperatures flowing from 23.9°C (75°F) in the colder month of January, to the pinnacle of 26°C (78.8°F) in the heightened warmth of April. The town experiences an average minimum temperature fluctuating between 13.8°C (56.8°F) to 17°C (62.6°F). The data reveals a temperate year-round climate, never too cold, yet not excessively hot either.
Humidity pervades the atmosphere of San Pedro, bouncing around an average relative value of 75% to 91%. This level of humidity is expecting in a Tropical Monsoon climate, making the atmosphere perceptibly moist, especially from May to October.
Distinguishing San Pedro's weather is a prolific amount of rain. The town receives most rainfall from May to October, a deluge averaging between 301mm (11.85") and a peak of 438mm (17.24") in October. Correspondingly, these months also experience the greatest number of rainfall days, nearing a full month. Conversely, rainfall ebbs considerably from January to April, averaging from 26mm (1.02") to 100mm (3.94") only.
Despite the extensive rains, San Pedro enjoys a healthy daylight of about 11.6 to 12.7 hours throughout the year. Correspondingly, the average hours of sunshine range from a minimum of 5.8 hours in October to maximum of 9.2 hours in February.
The best time to visit San Pedro
Mindful of the data, the optimal period to visit San Pedro would be between January and April. These months offer the most temperate weather conditions, with maximum temperatures not exceeding 26°C (78.8°F) and minimum temperatures stayed above 13.8°C (56.8°F). Low rainfall experienced during these months, falling between 26mm (1.02") in February and reaching a maximum of 100mm (3.94") in April. The reduced rainfall brings a dip in humidity to a comfortable 75% in February and March. The presence of sunshine, with an average of 8.9 to 9.2 hours translating into more daylight for touristic activities makes visiting between these months best.
The worst time to visit San Pedro
The months of September and October are the least favorable time for a visit. These months represent peak monsoon with rainfall spiking to 438mm (17.24") in October and monsoon days numbering around 30. Humidity intensifies, reaching 91% during these months and sunshine hours recede to just approximately 5.8 and 6.5 hours respectively.
Spring weather in San Pedro
In San Pedro, spring unfolds from March to May. These months bring mild temperature shifts, with highs averaging between 25.8°C (78.4°F) to 26°C (78.8°F) and lows ranging from 15.9°C (60.6°F) to 16.9°C (62.4°F). Rainfall starts to escalate during these months, with April marking the onset of the rainy season. Humidity levels start to rise in May, reaching 86%.
Summer weather in San Pedro
Summer extends from June to August in San Pedro. This season is characterized by a significant increase in rainfall with averages between 301mm (11.85") and 378mm (14.88"). Correspondingly, humidity climbs further, reaching an average of 90% in June and July. Despite this, temperatures remain fairly constant with highs averaging at 23.3°C (73.9°F) and lows around 15.8°C (60.4°F).
Autumn weather in San Pedro
San Pedro welcomes Autumn from September to November. These months carry the highest rainfall amounts, reaching a peak of 438mm (17.24") in October. Humidity can reach an intense 91% in September and October. Average temperatures drop slightly, with highs of 23°C (73.4°F) in September and 22.7°C (72.9°F) in November and lows moving between 16.4°C (61.5°F) to 15.2°C (59.4°F).
Winter weather in San Pedro
Winter arrives in December and stays on until February. The beginning of winter marks a significant decrease in rainfall, with monthly averages falling between 65mm (2.56") and 32mm (1.26"). The relative humidity levels drop due to the decline in rainfall, falling to 84%. Regular temperatures range from 22.4°C (72.3°F) to 25°C (77°F) for the highs, and for the lows temperatures range from 14°C (57.2°F) to 16.9°C (62.4°F) in February.
Weather in January
January in San Pedro, Costa Rica, typically presents mild conditions with occasional downpours. The weather reveals temperatures slightly cooler, from 13.8°C (56.8°F) to 23.9°C (75°F), compared to the following month. Humidity is relatively high, at an average of 78%, creating a tropical climate conducive to outdoor activities. Weather in January »
Weather in February
The weather in February remains mainly consistent with the one observed in January. Yet, rainfall decreases with lighter showers dispersed throughout the month. San Pedro's weather conditions still remain conducive to outdoor activities with longer daylight hours. Weather in February »
Weather in March
Moving into March, the weather patterns show a slight increase in average temperatures. The escalation in the cloud cover to 34% results in more diffused sunlight during the day. Yet, the UV index remains the same, denoting consistent solar exposure. Weather in March »
Weather in April
The April weather transforms significantly in San Pedro, as evident from the sharp increase in rainfall to 100mm (3.94"). Despite the more frequent showers, temperatures remain relatively high and humidity elevates to 78%. The city experiences fewer daylight hours and reduced sunshine duration in the month. Weather in April »
Weather in May
May brings with it the peak wet period in San Pedro, marked by a considerable increase in rainfall to 369mm (14.53"). Higher levels of humidity, reaching 86%, combine with the steadily warming temperatures to lay the foundation for this month's weather character. Weather in May »
Weather in June
June's weather in San Pedro presents almost similar conditions as observed in May. It retains continuous rainfall, higher humidity levels, and reduced visibility due to the persistent cloud cover. Sunshine hours observe a minor decrease, resulting in marginally shorter days but the available daylight remains reasonably extensive. Weather in June »
Weather in July
The July weather conditions in San Pedro follow the trend set by June, especially in the realms of rainfall, humidity, and wind speed. Slight variations occur in temperature averages, signaling seasonal transitions. An increase of sunshine hours compared to previous months brings about longer daylight hours. Weather in July »
Weather in August
As San Pedro moves into August, the weather maintains the tropical climate with intense showers being a predominant feature. The temperature range continues a gradual drop, and relative humidity stabilizes at 89%. The cloud coverage remains the same, contributing to stably low visibility conditions. Weather in August »
Weather in September
The weather in September remains similar to August concerning temperature ranges, humidity, and rainfall. The months share characteristics of high cloud coverage resulting in similar visibility conditions. Despite these conditions, daylight hours register a slight decrease. Weather in September »
Weather in October
Heading into October, the weather in San Pedro portrays the height of the rainy season, registering rainfall amounting to 438mm (17.24"). The temperature, humidity, and cloud coverage remain steady, resonating with the previous months. Weather in October »
Weather in November
November signals the start of the transition period where the weather conditions shift from the wet season towards drier conditions. Rainfall decreases to an average of 165mm (6.5"), considerably less than the prior month. Despite the lessened downpours, temperatures remain mild, maintaining the comfortable tropical weather. Weather in November »
Weather in December
The weather patterns in December change significantly, with rainfall reducing further to 65mm (2.56"). A gradual increase in daylight hours and wind speeds signals the onset of the dry season. However, relative humidity remains relatively high, factoring in a touch of tropical weather. Weather in December »
[Resources]Frequently asked questions
How much does it rain in San Pedro?
Throughout the year, there are 287.8 rainfall days, and 2585mm (101.77") of precipitation is accumulated.
When is the highest UV index in San Pedro?
January through December, with an average maximum UV index of 5, are months with the highest UV index.
When is the lowest UV index in San Pedro?
January through December, with an average maximum UV index of 5, are months with the lowest UV index in San Pedro.
What are the least humid months in San Pedro?
February and March, with an average relative humidity of 75%, are the least humid months in San Pedro, Costa Rica.
What is the driest month in San Pedro?
February is the month with the least rainfall in San Pedro, Costa Rica. Rain falls for 12.2 days and accumulates 26mm (1.02") of precipitation.
What month has the most sunshine in San Pedro?
The month with the most sunshine is February, with an average of 9.2h of sunshine.
What month is the hottest in San Pedro?
April, having an average high-temperature of 26°C (78.8°F) and an average low-temperature of 15.9°C (60.6°F), is the warmest month in San Pedro, Costa Rica.
When are the longest days in San Pedro?
June has the longest days of the year in San Pedro, Costa Rica, with an average of 12h and 42min of daylight.
What is the most humid month in San Pedro?
September and October, with an average relative humidity of 91%, are most humid months in San Pedro.
What is the coldest time of year in San Pedro?
The coldest period in San Pedro, Costa Rica, tends to be October, when average temperatures fluctuate between a high of 22.4°C (72.3°F) and a low of 16.1°C (61°F).
What is the wettest month in San Pedro?
The month with the most rainfall in San Pedro is October, when the rain falls for 30.5 days and typically aggregates up to 438mm (17.24") of precipitation.
What is the month with the least sunshine in San Pedro?
October has the least sunshine of the year in San Pedro, with an average of 5.8h of sunshine.
What is the month with the shortest days in San Pedro?
With an average of 11h and 36min of daylight, December has the shortest days of the year in San Pedro, Costa Rica.
Is there Daylight Saving Time (DST) in San Pedro?
San Pedro does not observe Daylight Saving Time (DST). CST timezone is used throughout the entire year.
Average temperature
San Pedro, Costa Rica
The warmest month (with the highest average high temperature) is April (26°C).
The month with the lowest average high temperature is October (22.4°C).
The month with the highest average low temperature is June (17°C).
The coldest month (with the lowest average low temperature) is January (13.8°C).
Average pressure
San Pedro, Costa Rica
- Average pressure in January:
1012.3mbar - Average pressure in February:
1012mbar - Average pressure in March:
1012.1mbar - Average pressure in April:
1011.5mbar - Average pressure in May:
1011.2mbar - Average pressure in June:
1011.2mbar
- Average pressure in July:
1011.5mbar - Average pressure in August:
1011.3mbar - Average pressure in September:
1011.1mbar - Average pressure in October:
1010.8mbar - Average pressure in November:
1011.1mbar - Average pressure in December:
1011.7mbar
The month with the highest atmospheric pressure is January (1012.3mbar).
The month with the lowest atmospheric pressure is October (1010.8mbar).
Average wind speed
San Pedro, Costa Rica
- Average wind speed in January:
10.5km/h - Average wind speed in February:
10.7km/h - Average wind speed in March:
9.6km/h - Average wind speed in April:
7km/h - Average wind speed in May:
5.1km/h - Average wind speed in June:
5km/h
- Average wind speed in July:
6.8km/h - Average wind speed in August:
5.5km/h - Average wind speed in September:
4.3km/h - Average wind speed in October:
4.4km/h - Average wind speed in November:
6.5km/h - Average wind speed in December:
9km/h
The windiest month (with the highest average wind speed) is February (10.7km/h).
The calmest month (with the lowest average wind speed) is September (4.3km/h).
Average humidity
San Pedro, Costa Rica
The months with the highest relative humidity are September and October (91%).
The months with the lowest relative humidity are February and March (75%).
Average rainfall
San Pedro, Costa Rica
- Average rainfall in January:
32mm - Average rainfall in February:
26mm - Average rainfall in March:
28mm - Average rainfall in April:
100mm - Average rainfall in May:
369mm - Average rainfall in June:
378mm
- Average rainfall in July:
301mm - Average rainfall in August:
339mm - Average rainfall in September:
344mm - Average rainfall in October:
438mm - Average rainfall in November:
165mm - Average rainfall in December:
65mm
The wettest month (with the highest rainfall) is October (438mm).
The driest month (with the least rainfall) is February (26mm).
Average rainfall days
San Pedro, Costa Rica
- Average rainfall days in January:
14.3 days - Average rainfall days in February:
12.2 days - Average rainfall days in March:
15.5 days - Average rainfall days in April:
21.9 days - Average rainfall days in May:
28.7 days - Average rainfall days in June:
28.9 days
- Average rainfall days in July:
29.7 days - Average rainfall days in August:
29.2 days - Average rainfall days in September:
29.5 days - Average rainfall days in October:
30.5 days - Average rainfall days in November:
27.9 days - Average rainfall days in December:
19.5 days
The month with the highest number of rainy days is October (30.5 days).
The month with the least rainy days is February (12.2 days).
Average daylight / Average sunshine
San Pedro, Costa Rica
- Average daylight in January:
11h and 4min - Average daylight in February:
11h and 5min - 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 4min
- Average daylight in July:
12h and 4min - Average daylight in August:
12h and 2min - 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 4min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in January:
8h and 5min - Average sunshine in February:
9h and 1min - Average sunshine in March:
8h and 5min - Average sunshine in April:
8h and 4min - Average sunshine in May:
6h and 5min - Average sunshine in June:
6h and 1min
- Average sunshine in July:
7h and 1min - Average sunshine in August:
6h and 4min - Average sunshine in September:
6h and 3min - Average sunshine in October:
5h and 5min - Average sunshine in November:
6h and 2min - Average sunshine in December:
7h and 5min
The month with the most sunshine is February (Average sunshine: 9h and 12min).
The month with the least sunshine is October (Average sunshine: 5h and 48min).
Average sunshine days
San Pedro, Costa Rica
- Average sunshine days in January:
13.1 days - Average sunshine days in February:
12.7 days - Average sunshine days in March:
13.5 days - Average sunshine days in April:
6.4 days - Average sunshine days in May:
1.8 days - Average sunshine days in June:
0.5 days
- Average sunshine days in July:
0.7 days - Average sunshine days in August:
0.7 days - Average sunshine days in September:
0.1 days - Average sunshine days in October:
0.4 days - Average sunshine days in November:
1.6 days - Average sunshine days in December:
9.1 days
The month with the most sunshine days is March (13.5 days).
The month with the least sunshine days is September (0.1 days).
Average UV index
San Pedro, Costa Rica
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).
Average cloud cover
San Pedro, Costa Rica
The month with the most cloud cover is October (Cloud cover 68).
The month with the least cloud cover is February (Cloud cover 30).
Average visibility
San Pedro, Costa Rica
The months with the highest visibility are January, February and March (9km).
The months with the lowest visibility are August, September, October and November (6km).
San Pedro, Costa Rica
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