Climate averages 1991–2020
San Miguel, El Salvador weather
in December.
A hot, very dry month: the 5th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in San Miguel, El Salvador: daytime highs average 33.6°C and nights cool to about 22.0°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 5.7 mm of rain on roughly 1 day, which makes December a very dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 21 min on an average December day.
The nearest other city in this atlas is Soyapango (107 km away). In December its highs average 29.3°C, 4.3°C cooler than San Miguel, El Salvador, with 6.8 mm of rain.
Among the 6 cities listed in El Salvador, San Miguel, El Salvador ranks 1st of 6 for the warmest December highs and 2nd of 6 for the driest December (rainfall, lowest first). The mean December high of those 6 cities is 30.1°C; San Miguel, El Salvador is 3.5°C warmer than that mean.
From December to January, average highs rise by 1.1°C to 34.7°C, and monthly rainfall falls from 5.7 mm to 1.2 mm.
The annual picture
December 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 | 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, selected | 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
December in nearby cities
- Soyapango in DecemberEl Salvador · 107 kmHigh 29.3°C · Low 19.7°C · 6.8 mm rain
- Ciudad Choluteca in DecemberHonduras · 110 kmHigh 33.9°C · Low 23.1°C · 5.1 mm rain
- San Salvador in DecemberEl Salvador · 111 kmHigh 29.6°C · Low 19.5°C · 6.8 mm rain
- Apopa in DecemberEl Salvador · 114 kmHigh 31.1°C · Low 20.2°C · 6.8 mm rain
- Santa Tecla in DecemberEl Salvador · 121 kmHigh 27.7°C · Low 17.6°C · 6.8 mm rain
- Tegucigalpa in DecemberHonduras · 125 kmHigh 25.7°C · Low 17.3°C · 8.2 mm rain
- Siguatepeque in DecemberHonduras · 130 kmHigh 21.7°C · Low 15.7°C · 63 mm rain
- Chinandega in DecemberNicaragua · 148 kmHigh 31.6°C · Low 23.9°C · 6.3 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.