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Contents
- The climate of San Salvador
- The best time to visit San Salvador
- The worst time to visit San Salvador
- Spring weather in San Salvador
- Summer weather in San Salvador
- Autumn weather in San Salvador
- Winter weather in San Salvador
- 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 sunlit San Salvador city in El Salvador set on the beautiful slopes of the mountain
The climate of San Salvador
The geographical positioning of San Salvador positions it distinctly within the Aw - Tropical wet and dry or savanna - region of the Köppen climate classification. This climatic categorization is predominantly settled on its weather behavior throughout the year.
A journey through the climate patterns shows a cyclical dance between temperatures, humidity, and rainfall. The temperature swings from a pleasant 19.4°C (66.9°F) to a warmer 32.6°C (90.7°F), providing a stable range ideal for tropical bio-diversity. Equally, the relative humidity levels oscillate from 62% to a peak of 82%. This affirms the humid tropical nature of the climate and its propensity for wet weather conditions, with February and September falling into the highest realms of humidity levels respectively.
Rainfall shows a strong correlation with the humidity levels, reaching a maximum of 234mm (9.21") in May and a minimum of 1mm (0.04") in January. This range varies widely from minimal to abundant levels, thereby pegging the climate to the savannah type, known for significant monthly rain variations. Similarly, daylight hours range from 11.3 to 12.9 hours displaying longer sunshine hours from April to June. From this array of data, it emerges clearly that the sunshine hours do not vary considerably, despite slight increases in the middle of the year.
The cloud cover in San Salvador also aligns closely with the tropical wet and dry climate, peaking in both June and October with 38% coverage.
A journey through the climate patterns shows a cyclical dance between temperatures, humidity, and rainfall. The temperature swings from a pleasant 19.4°C (66.9°F) to a warmer 32.6°C (90.7°F), providing a stable range ideal for tropical bio-diversity. Equally, the relative humidity levels oscillate from 62% to a peak of 82%. This affirms the humid tropical nature of the climate and its propensity for wet weather conditions, with February and September falling into the highest realms of humidity levels respectively.
Rainfall shows a strong correlation with the humidity levels, reaching a maximum of 234mm (9.21") in May and a minimum of 1mm (0.04") in January. This range varies widely from minimal to abundant levels, thereby pegging the climate to the savannah type, known for significant monthly rain variations. Similarly, daylight hours range from 11.3 to 12.9 hours displaying longer sunshine hours from April to June. From this array of data, it emerges clearly that the sunshine hours do not vary considerably, despite slight increases in the middle of the year.
The cloud cover in San Salvador also aligns closely with the tropical wet and dry climate, peaking in both June and October with 38% coverage.
The best time to visit San Salvador
With a considered analysis of the climatic data, November emerges as the ideal time to visit San Salvador. This month presents the most agreeable balance between temperature, humidity, and rainfall. The temperature is at an average 29.9°C (85.8°F) while the relative humidity drops to 75%. Rainfall also registers relatively lower levels at 31mm (1.22"). Moreover, a commendable UV index of 6 makes this time of year a favorite for visitors, providing the best outdoor conditions.
The worst time to visit San Salvador
The least suitable period to visit San Salvador lies in May. This month presents the highest level of rainfall, averaging 234mm (9.21"). While the city may indeed be lush and green during this time, the torrential rains and high humidity level, peaking at 76%, may put a damper on travel plans. A potential visitor might find outdoor activities hindered by the relentless rains and wet conditions.
Spring weather in San Salvador
Springtime in San Salvador extends from March to May where temperatures tend to hover around 31°C (87.8°F). During this period, rainfall initiates its increase, reaching its peak in May with 234mm (9.21"). A considerable surge in daylight hours is noticeable during these months, leading to increased sunshine exposure and a UV index of 7.
Summer weather in San Salvador
Summer weather builds up from June to August. The temperature remains rather consistent, oscillating from 29.9°C (85.8°F) to the lowest point of 29.8°C (85.6°F) in August. Simultaneously, the humidity hits its annual peak in June with 81%. Rainfall is prevalent in this period, standing at 156mm (6.14") in June and tapering off to 159mm (6.26") by August. Despite the clouds, high sunshine hours still persist throughout the season.
Autumn weather in San Salvador
Experiencing autumn in San Salvador comes with a measure of relief from the persistent summer rains. Through September to November, rainfall registers a declining trend. In line with this, the humidity also shows signs of decrease, eventually reaching 75% in November. The temperatures throughout this autumn period maintain a steady pace in the region of 29°C (84.2°F).
Winter weather in San Salvador
Winter months in San Salvador, extending from December to February, show a subtle decline in temperature. December starts at a slightly cooler 29.9°C (85.8°F), descending to 29°C (84.2°F) in January, then spiraling back up to 30.6°C (87.1°F) in February. The season is characterized by low rainfall, a decrease in humidity, and relatively shorter days. The season brings relief with the lowest rainfall of 1mm (0.04") in January, making it one of the driest months in the region.
Weather in January
January starts the year on a bright note in San Salvador, with an environment well-suited for outdoor activities. The weather remains largely stable with mild temperature variations. Clear skies dominate the cityscape while high visibility contributes to scenic views of the landscape. Weather in January »
Weather in February
February carries on the dry and bright weather conditions from January. The city experiences an increase in temperatures and longer daylight hours. A higher UV index of 7 units encourages extra precautions for sun protection. Although a slight increase in cloud cover is noticed, the skies remain generally clear. Weather in February »
Weather in March
March denotes the transition to slightly warmer nights in San Salvador. The daylight duration extends further, promising more sunshine and outdoor fun. A slight increase in rainfall is observed, but showers remain light and scattered. Weather in March »
Weather in April
April signals the advent of substantial rainfall in San Salvador. Temperature variations remain minimal while daylight hours peak. Overcast conditions increase as the figure for cloud cover rises appreciably. During April, rainfall jumps dramatically to produce an average of 45mm (1.77") over an extended period of 15.2 days of rainfall, indicating a shift to wetter conditions. Weather in April »
Weather in May
May marks the beginning of the rainy season in San Salvador. The temperatures stay steady but the spike in relative humidity to 76% from last month’s 67% makes the city feel significantly wetter. A decline in visibility coincides with the increased rainfall and cloud cover. Weather in May »
Weather in June
In June, San Salvador continues its rainy spell, but with slightly decreased intensity compared to May. The city transitions to shorter daylight hours, but the UV index remains consistently high. Even though wind speeds stay relatively low, sustained rains influence higher cloudiness and decreased visibility. Weather in June »
Weather in July
July brings a marginal reprieve from the rainy conditions that dominated June in San Salvador. Daylight hours continue to reduce, but clear days are not unusual. The UV index holds at 7 units, maintaining a constant requirement for sun safeguards. Weather in July »
Weather in August
August replicates the weather pattern from July in San Salvador. Medium-range temperatures combine with reduced sunshine hours to define the city's weather. Meanwhile, consistent humidity levels contribute to a pleasantly warm atmosphere. Weather in August »
Weather in September
September sees a slight dip in temperature in San Salvador, mirrored by the decline in daylight and sunshine duration. Rainfall continues unabated, contributing to high levels of humidity and cloud cover. Despite this, the UV index remains consistently high. Weather in September »
Weather in October
October presents the highest rainfall levels in the second half of the year for San Salvador. Daylight hours keep reducing, but an increasing number of sunshine days offer residents some respite. Despite the consistent UV index, lower visibility limits outdoor activities. Weather in October »
Weather in November
November signals a significant transition to drier weather in San Salvador. Notable improvements in visibility along with extended periods of sunshine mark the city's move towards less wet conditions. Even though the UV Index hovers at its usual level, cloud cover reduces, making the sun appear brighter. Weather in November »
Weather in December
December in San Salvador brings a definitive end to the rainy season. The slightly cooler temperatures, coupled with increased wind speeds, make for a more refreshing end to the year. Although daylight hours continue to decrease, clear skies and improved visibility dominate the landscape. Weather in December »
[Resources]Frequently asked questions
What is the driest month in San Salvador?
The month with the least rainfall in San Salvador, El Salvador, is January, when the rain falls for 1.9 days and typically collects 1mm (0.04") of precipitation.
How much does it rain in San Salvador?
In San Salvador, El Salvador, during the entire year, the rain falls for 187 days and collects up to 1106mm (43.54") of precipitation.
What is the month with the least sunshine in San Salvador?
The months with the least sunshine are January and December, with an average of 7.7h of sunshine.
What are the months with the lowest UV index in San Salvador?
The months with the lowest UV index in San Salvador, El Salvador, are January, May, June, August through December, with an average maximum UV index of 6.
When is the highest UV index in San Salvador?
The months with the highest UV index in San Salvador are February through April and July, with an average maximum UV index of 7.
What is the hottest time of year in San Salvador?
March is San Salvador's warmest month, registering average high temperatures of 32.6°C (90.7°F) and lows of 21.1°C (70°F).
What is the least humid month in San Salvador?
With an average relative humidity of 62%, March is the least humid month.
What month has the most sunshine in San Salvador?
The month with the most sunshine in San Salvador, El Salvador, is April, with an average of 11.4h of sunshine.
What is the rainiest month in San Salvador?
May is the month with the most rainfall. Rain falls for 25.5 days and accumulates 234mm (9.21") of precipitation.
When are the longest days in San Salvador?
June has the longest days of the year in San Salvador, with an average of 12h and 54min of daylight.
What are the most humid months in San Salvador?
The months with the highest humidity in San Salvador are September and October, with an average relative humidity of 82%.
What month is the coldest in San Salvador?
San Salvador witnesses the coldest weather in October, with temperatures averaging a high of 29°C (84.2°F) and a low of 20.5°C (68.9°F).
What is the month with the shortest days in San Salvador?
With an average of 11h and 18min of daylight, December has the shortest days of the year in San Salvador, El Salvador.
Is there Daylight Saving Time (DST) in San Salvador?
San Salvador does not utilize Daylight Saving Time (DST). CST timezone is used throughout the entire year.
Average temperature
San Salvador, El Salvador
The warmest month (with the highest average high temperature) is March (32.6°C).
The month with the lowest average high temperature is October (29°C).
The month with the highest average low temperature is April (22.8°C).
The coldest month (with the lowest average low temperature) is January (19.4°C).
Average pressure
San Salvador, El Salvador
- Average pressure in January:
1013.5mbar - Average pressure in February:
1012.9mbar - Average pressure in March:
1012.6mbar - Average pressure in April:
1011.6mbar - Average pressure in May:
1011.3mbar - Average pressure in June:
1011.5mbar
- Average pressure in July:
1012.2mbar - Average pressure in August:
1011.8mbar - Average pressure in September:
1011.4mbar - Average pressure in October:
1011.3mbar - Average pressure in November:
1012.3mbar - Average pressure in December:
1013mbar
The month with the highest atmospheric pressure is January (1013.5mbar).
The months with the lowest atmospheric pressure are May and October (1011.3mbar).
Average wind speed
San Salvador, El Salvador
- Average wind speed in January:
8.5km/h - Average wind speed in February:
7.4km/h - Average wind speed in March:
7.1km/h - Average wind speed in April:
5.9km/h - Average wind speed in May:
5.1km/h - Average wind speed in June:
4.8km/h
- Average wind speed in July:
5.3km/h - Average wind speed in August:
5.1km/h - Average wind speed in September:
4.9km/h - Average wind speed in October:
5.6km/h - Average wind speed in November:
7.2km/h - Average wind speed in December:
7.9km/h
The windiest month (with the highest average wind speed) is January (8.5km/h).
The calmest month (with the lowest average wind speed) is June (4.8km/h).
Average humidity
San Salvador, El Salvador
The months with the highest relative humidity are September and October (82%).
The month with the lowest relative humidity is March (62%).
Average rainfall
San Salvador, El Salvador
The wettest month (with the highest rainfall) is May (234mm).
The driest month (with the least rainfall) is January (1mm).
Average rainfall days
San Salvador, El Salvador
- Average rainfall days in January:
1.9 days - Average rainfall days in February:
2.8 days - Average rainfall days in March:
6.1 days - Average rainfall days in April:
15.2 days - Average rainfall days in May:
25.5 days - Average rainfall days in June:
25.1 days
- Average rainfall days in July:
23.8 days - Average rainfall days in August:
24.2 days - Average rainfall days in September:
26.3 days - Average rainfall days in October:
22.8 days - Average rainfall days in November:
11 days - Average rainfall days in December:
2.3 days
The month with the highest number of rainy days is September (26.3 days).
The month with the least rainy days is January (1.9 days).
Average daylight / Average sunshine
San Salvador, El Salvador
- Average daylight in January:
11h and 2min - 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 5min - Average daylight in June:
12h and 5min
- Average daylight in July:
12h and 5min - Average daylight in August:
12h and 4min - Average daylight in September:
12h and 1min - Average daylight in October:
11h and 5min - Average daylight in November:
11h and 3min - 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 18min).
- Average sunshine in January:
7h and 4min - Average sunshine in February:
9h and 1min - Average sunshine in March:
10h and 3min - Average sunshine in April:
11h and 2min - Average sunshine in May:
10h and 5min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
11h and 1min - Average sunshine in August:
11h and 0min - Average sunshine in September:
9h and 2min - Average sunshine in October:
8h and 3min - Average sunshine in November:
8h and 5min - Average sunshine in December:
7h and 4min
The month with the most sunshine is April (Average sunshine: 11h and 24min).
The months with the least sunshine are January and December (Average sunshine: 7h and 42min).
Average sunshine days
San Salvador, El Salvador
- Average sunshine days in January:
28.7 days - Average sunshine days in February:
24.2 days - Average sunshine days in March:
23.8 days - Average sunshine days in April:
13.4 days - Average sunshine days in May:
4.5 days - Average sunshine days in June:
4.1 days
- Average sunshine days in July:
5.6 days - Average sunshine days in August:
5.4 days - Average sunshine days in September:
3.2 days - Average sunshine days in October:
7 days - Average sunshine days in November:
18 days - Average sunshine days in December:
28.5 days
The month with the most sunshine days is January (28.7 days).
The month with the least sunshine days is September (3.2 days).
Average UV index
San Salvador, El Salvador
The months with the highest UV index are February, March, April and July (UV index 7).
The months with the lowest UV index are January, May, June, August, September, October, November and December (UV index 6).
Average cloud cover
San Salvador, El Salvador
The months with the most cloud cover are June, September and October (Cloud cover 38).
The month with the least cloud cover is January (Cloud cover 13).
Average visibility
San Salvador, El Salvador
The months with the highest visibility are January, February, March, April, November and December (10km).
The months with the lowest visibility are September and October (8km).
San Salvador, El Salvador
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