San Salvador, El Salvador Climate & Monthly Averages
San Salvador has a tropical wet-and-dry climate. April is the hottest month, averaging 88° by day; October is the coldest at 82°.
Rain, not cold, divides the year in San Salvador
Temperature barely moves in San Salvador - 2°C between the average April and the average October. Rainfall does the work instead: 11.4 inches (291 mm) in June against 4 mm (0.2 in) in February.
The wet-and-dry rhythm at a glance
October sits at the other end of the year: 82°F (28°C) by day, 70°F (21°C) at night. April is the warm end of the year, averaging 88°F (31°C) by day and 71°F (22°C) overnight. Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 99°F (37°C) and the lowest daily minimum 58°F (15°C).
March is the brightest month at 11.8 hours of sun a day, against an annual average of 10.6 - sunnier than roughly 85% of the cities we track.
The wettest month is June (11.4 inches (291 mm) across 27 days) and the driest February. 4 months average under 20 mm of rain, the longest unbroken stretch running December through March.
More climate facts for San Salvador
- Hottest month: April - highs near 88°F (31°C)
- Coldest month: October - highs near 82°F (28°C)
- Decade extremes (2015-2024): 99°F (37°C) high · 58°F (15°C) low
- Wettest month: June (27 rainy days) · Sunniest: March (11.8 h sun/day)
- Climate type: tropical wet-and-dry
- Annual swing: 2°C between the average warmest and coolest month · day to night: 9°C
- Months averaging 30°C or hotter: 4
- Average humidity: 75%
Choosing the right part of the year in San Salvador
Choose dates by rain, not just temperature
December to March is the sweet spot for San Salvador - humidity and rainfall are at their lowest, which is what actually varies here. Expect 88°F (31°C) in the afternoon and around 3 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in December.
What the humidity changes
Pack for San Salvador with light clothing for the warm months, proper waterproofs rather than an umbrella - wet days are the norm here and moisture-wicking fabrics for the humidity. April nights average 71°F (22°C), so evenings rarely match the afternoons.
Warm all year: the monthly rain pattern
Each card shows the average high and low. The bar places that month between San Salvador's coldest night and warmest afternoon.
January
- Rain
- 2 days
- Sunshine
- 11.1 h
- Daylight
- 11.4 h
February
- Rain
- 1 day
- Sunshine
- 11.5 h
- Daylight
- 11.7 h
March
- Rain
- 6 days
- Sunshine
- 11.8 h
- Daylight
- 12.0 h
April
- Rain
- 16 days
- Sunshine
- 11.7 h
- Daylight
- 12.4 h
May
- Rain
- 26 days
- Sunshine
- 10.6 h
- Daylight
- 12.8 h
June
- Rain
- 27 days
- Sunshine
- 9.0 h
- Daylight
- 12.9 h
July
- Rain
- 24 days
- Sunshine
- 10.9 h
- Daylight
- 12.9 h
August
- Rain
- 26 days
- Sunshine
- 10.5 h
- Daylight
- 12.6 h
September
- Rain
- 29 days
- Sunshine
- 9.6 h
- Daylight
- 12.2 h
October
- Rain
- 26 days
- Sunshine
- 9.2 h
- Daylight
- 11.8 h
November
- Rain
- 14 days
- Sunshine
- 10.2 h
- Daylight
- 11.5 h
December
- Rain
- 4 days
- Sunshine
- 10.8 h
- Daylight
- 11.3 h
Looking for warmer alternatives? Browse warm places by month, or compare San Salvador's coolest part of the year: October, June, September.
Monthly temperature and rain table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 87° | 67° | 2 | 0.2 in | 11.1 h/day | 11.4 h | 6% | 61% |
| February | 89° | 67° | 1 | 0.2 in | 11.5 h/day | 11.7 h | 5% | 60% |
| March | 89° | 69° | 6 | 0.7 in | 11.8 h/day | 12.0 h | 18% | 61% |
| April | 88° | 71° | 16 | 2.6 in | 11.7 h/day | 12.4 h | 52% | 69% |
| May | 85° | 71° | 26 | 8.3 in | 10.6 h/day | 12.8 h | 85% | 81% |
| June | 82° | 71° | 27 | 11.4 in | 9.0 h/day | 12.9 h | 90% | 86% |
| July | 85° | 71° | 24 | 6.6 in | 10.9 h/day | 12.9 h | 78% | 80% |
| August | 84° | 71° | 26 | 9.2 in | 10.5 h/day | 12.6 h | 85% | 84% |
| September | 82° | 70° | 29 | 11.3 in | 9.6 h/day | 12.2 h | 97% | 88% |
| October | 82° | 70° | 26 | 9.6 in | 9.2 h/day | 11.8 h | 83% | 86% |
| November | 83° | 69° | 14 | 4.0 in | 10.2 h/day | 11.5 h | 46% | 77% |
| December | 86° | 68° | 4 | 0.5 in | 10.8 h/day | 11.3 h | 14% | 66% |
How San Salvador compares for rain and warmth
- Its warmest and coolest months are 2°C apart - a steadier year than all but 5% of the 3496 cities we track.
- Rain or snow reaches the ground on 201 days a year - more wet days than 91% of the 3496 cities we track.
These comparisons use the same ten-year window for every city in the dataset.
How the calendar changes in warm-weather San Salvador
March through May
March through May in San Salvador runs hot, with daytime highs averaging 87°F (31°C) and nights around 70°F (21°C); rain falls on around 48 of the 90 days. Daylight is generous - around 11.4 hours of sun a day. With the moisture factored in, afternoons feel hotter than the reading suggests - the humidity and dew point converter shows why.
June through August
June through August sits firmly in the heat here - highs near 84°F (29°C), nights near 71°F (22°C), and rain falls on around 78 of the 90 days. Daylight is generous - around 10.1 hours of sun a day.
September through November
September through November brings hot afternoons here - highs near 82°F (28°C), nights near 70°F (21°C), and rain falls on around 68 of the 90 days.
December through February
December through February in San Salvador brings hot afternoons, with daytime highs averaging 87°F (31°C) and nights around 67°F (20°C); precipitation is sparse, near 23 mm (0.9 in) for the season. Daylight is generous - around 11.1 hours of sun a day.
Questions about heat and rain in San Salvador
How many hot months does San Salvador have?
Is San Salvador cold in winter?
Does San Salvador have seasons?
How hot does San Salvador get in summer?
How much sun does San Salvador get?
Which months are driest in San Salvador?
San Salvador temperature extremes in the 2015–2024 dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.