Climate averages 1991–2020
San Salvador weather
in March.
A hot, very dry month: the warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a hot month in San Salvador: daytime highs average 31.7°C and nights cool to about 20.6°C. By daytime temperature it is the warmest month of the year.
Expect about 9.8 mm of rain on roughly 3 days, which makes March a very dry month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 03 min on an average March day.
The nearest other city in this atlas is Soyapango (6 km away). In March its highs average 31.2°C, about as warm as San Salvador, with 9.8 mm of rain.
Among the 6 cities listed in El Salvador, San Salvador ranks 4th of 6 for the warmest March highs and joint 3rd of 6 for the driest March (rainfall, lowest first). The mean March high of those 6 cities is 32.4°C; San Salvador is 0.7°C cooler than that mean.
From March to April, average highs fall by 0.7°C to 31.0°C, and monthly rainfall rises from 9.8 mm to 50 mm.
The annual picture
March in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
San Salvador climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.3°C19.3°C | 19.3°C | 1.9 | 0.6 | 11.411 h |
| February | 31.3°C19.8°C | 19.8°C | 2.0 | 0.5 | 11.712 h |
| March, selected | 31.7°C20.6°C | 20.6°C | 9.8 | 2.9 | 12.012 h |
| April | 31.0°C21.6°C | 21.6°C | 50 | 11.3 | 12.412 h |
| May | 29.2°C21.7°C | 21.7°C | 222 | 24.9 | 12.813 h |
| June | 28.2°C21.4°C | 21.4°C | 248 | 26.2 | 12.913 h |
| July | 29.2°C21.2°C | 21.2°C | 186 | 22.3 | 12.813 h |
| August | 28.9°C21.3°C | 21.3°C | 230 | 26.0 | 12.613 h |
| September | 27.8°C21.0°C | 21.0°C | 303 | 28.4 | 12.212 h |
| October | 27.6°C20.6°C | 20.6°C | 232 | 23.3 | 11.812 h |
| November | 28.5°C19.9°C | 19.9°C | 45 | 7.6 | 11.512 h |
| December | 29.6°C19.5°C | 19.5°C | 6.8 | 1.3 | 11.311 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
March in nearby cities
- Soyapango in MarchEl Salvador · 6 kmHigh 31.2°C · Low 21.1°C · 9.8 mm rain
- Santa Tecla in MarchEl Salvador · 10 kmHigh 29.7°C · Low 18.6°C · 9.8 mm rain
- Apopa in MarchEl Salvador · 13 kmHigh 33.7°C · Low 22.0°C · 9.8 mm rain
- Santa Ana, El Salvador in MarchEl Salvador · 52 kmHigh 31.9°C · Low 20.0°C · 6.2 mm rain
- Jutiapa in MarchGuatemala · 101 kmHigh 30.3°C · Low 18.0°C · 9.9 mm rain
- San Miguel, El Salvador in MarchEl Salvador · 111 kmHigh 36.1°C · Low 24.5°C · 8.6 mm rain
- Chiquimula in MarchGuatemala · 130 kmHigh 29.3°C · Low 19.6°C · 9.8 mm rain
- Jalapa in MarchGuatemala · 136 kmHigh 26.7°C · Low 14.8°C · 12 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for San Salvador) is explained once on the San Salvador year overview and on the Sources, method and limits page.
Soyapango, Santa Tecla and Apopa lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.