Climate averages 1991–2020
San Miguel, El Salvador weather
in May.
A hot, very wet month: the 7th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in San Miguel, El Salvador: daytime highs average 33.1°C and nights cool to about 25.0°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 258 mm of rain on roughly 23 days, which makes May a very wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 45 min on an average May day.
The nearest other city in this atlas is Soyapango (107 km away). In May its highs average 29.0°C, 4.0°C cooler than San Miguel, El Salvador, with 222 mm of rain.
Among the 6 cities listed in El Salvador, San Miguel, El Salvador ranks 1st of 6 for the warmest May highs and 6th of 6 for the driest May (rainfall, lowest first). The mean May high of those 6 cities is 30.1°C; San Miguel, El Salvador is 3.0°C warmer than that mean.
From May to June, average highs fall by 1.5°C to 31.6°C, and monthly rainfall rises from 258 mm to 291 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
San Miguel, El Salvador climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 34.7°C22.4°C | 22.4°C | 1.2 | 0.4 | 11.411 h |
| February | 35.7°C23.3°C | 23.3°C | 1.4 | 0.3 | 11.712 h |
| March | 36.1°C24.5°C | 24.5°C | 8.6 | 2.1 | 12.012 h |
| April | 35.5°C25.6°C | 25.6°C | 44 | 9.1 | 12.412 h |
| May, selected | 33.1°C25.0°C | 25.0°C | 258 | 22.7 | 12.713 h |
| June | 31.6°C24.0°C | 24.0°C | 291 | 23.6 | 12.913 h |
| July | 33.2°C24.1°C | 24.1°C | 194 | 18.9 | 12.813 h |
| August | 32.6°C24.1°C | 24.1°C | 271 | 22.5 | 12.613 h |
| September | 30.9°C23.6°C | 23.6°C | 343 | 26.7 | 12.212 h |
| October | 30.3°C23.1°C | 23.1°C | 304 | 24.0 | 11.812 h |
| November | 31.5°C22.3°C | 22.3°C | 61 | 8.8 | 11.512 h |
| December | 33.6°C22.0°C | 22.0°C | 5.7 | 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
May in nearby cities
- Soyapango in MayEl Salvador · 107 kmHigh 29.0°C · Low 22.1°C · 222 mm rain
- Ciudad Choluteca in MayHonduras · 110 kmHigh 33.3°C · Low 24.8°C · 323 mm rain
- San Salvador in MayEl Salvador · 111 kmHigh 29.2°C · Low 21.7°C · 222 mm rain
- Apopa in MayEl Salvador · 114 kmHigh 31.4°C · Low 23.2°C · 222 mm rain
- Santa Tecla in MayEl Salvador · 121 kmHigh 27.3°C · Low 19.8°C · 222 mm rain
- Tegucigalpa in MayHonduras · 125 kmHigh 29.3°C · Low 20.3°C · 279 mm rain
- Siguatepeque in MayHonduras · 130 kmHigh 27.3°C · Low 18.4°C · 205 mm rain
- Chinandega in MayNicaragua · 148 kmHigh 31.8°C · Low 25.5°C · 266 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 Miguel) is explained once on the San Miguel, El Salvador year overview and on the Sources, method and limits page.