Climate averages 1991–2020
Santa Ana, El Salvador weather
in May.
A hot, wet month: the 4th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Santa Ana, El Salvador: daytime highs average 30.5°C and nights cool to about 21.7°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 138 mm of rain on roughly 21 days, which makes May a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 46 min on an average May day.
The nearest other city in this atlas is Santa Tecla (45 km away). In May its highs average 27.3°C, 3.2°C cooler than Santa Ana, El Salvador, with 222 mm of rain.
Among the 6 cities listed in El Salvador, Santa Ana, El Salvador ranks 3rd of 6 for the warmest May highs and 1st of 6 for the driest May (rainfall, lowest first). The mean May high of those 6 cities is 30.1°C; Santa Ana, El Salvador is 0.4°C warmer than that mean.
From May to June, average highs fall by 1.7°C to 28.8°C, and monthly rainfall rises from 138 mm to 186 mm.
The annual picture
May 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
Santa Ana, El Salvador climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.6°C18.5°C | 18.5°C | 1.7 | 0.4 | 11.411 h |
| February | 30.9°C19.2°C | 19.2°C | 1.3 | 0.3 | 11.712 h |
| March | 31.9°C20.0°C | 20.0°C | 6.2 | 1.6 | 12.012 h |
| April | 32.3°C21.4°C | 21.4°C | 31 | 7.2 | 12.412 h |
| May, selected | 30.5°C21.7°C | 21.7°C | 138 | 20.5 | 12.813 h |
| June | 28.8°C21.2°C | 21.2°C | 186 | 24.1 | 12.913 h |
| July | 29.9°C21.2°C | 21.2°C | 97 | 15.8 | 12.913 h |
| August | 29.9°C21.3°C | 21.3°C | 122 | 20.2 | 12.613 h |
| September | 28.5°C20.9°C | 20.9°C | 213 | 25.7 | 12.212 h |
| October | 27.9°C20.3°C | 20.3°C | 157 | 18.6 | 11.812 h |
| November | 28.6°C19.4°C | 19.4°C | 27 | 4.3 | 11.511 h |
| December | 29.3°C18.8°C | 18.8°C | 5.3 | 1.0 | 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
May in nearby cities
- Santa Tecla in MayEl Salvador · 45 kmHigh 27.3°C · Low 19.8°C · 222 mm rain
- Apopa in MayEl Salvador · 45 kmHigh 31.4°C · Low 23.2°C · 222 mm rain
- Jutiapa in MayGuatemala · 49 kmHigh 29.2°C · Low 20.1°C · 159 mm rain
- San Salvador in MayEl Salvador · 52 kmHigh 29.2°C · Low 21.7°C · 222 mm rain
- Soyapango in MayEl Salvador · 55 kmHigh 29.0°C · Low 22.1°C · 222 mm rain
- Jalapa in MayGuatemala · 86 kmHigh 26.2°C · Low 17.2°C · 143 mm rain
- Chiquimula in MayGuatemala · 90 kmHigh 30.8°C · Low 22.2°C · 110 mm rain
- San José Pinula in MayGuatemala · 111 kmHigh 23.2°C · Low 14.1°C · 227 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 Santa Ana) is explained once on the Santa Ana, El Salvador year overview and on the Sources, method and limits page.