Climate averages 1991–2020
San Miguel de Allende weather
in August.
A warm, wet month: the 5th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in San Miguel de Allende: daytime highs average 25.1°C and nights cool to about 14.8°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 101 mm of rain on roughly 13 days, which makes August a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 51 min on an average August day.
The nearest other city in this atlas is Celaya (44 km away). In August its highs average 25.8°C, 0.7°C warmer than San Miguel de Allende, with 122 mm of rain.
Among the 153 cities listed in Mexico, San Miguel de Allende ranks joint 100th of 153 for the warmest August highs and 57th of 153 for the driest August (rainfall, lowest first). The mean August high of those 153 cities is 27.9°C; San Miguel de Allende is 2.8°C cooler than that mean.
From August to September, average highs fall by 1.2°C to 23.8°C, and monthly rainfall falls from 101 mm to 100 mm.
The annual picture
August 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 de Allende climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 22.0°C8.3°C | 8.3°C | 12 | 2.3 | 11.011 h |
| February | 24.2°C9.6°C | 9.6°C | 13 | 2.0 | 11.411 h |
| March | 26.7°C11.2°C | 11.2°C | 12 | 2.2 | 12.012 h |
| April | 28.8°C13.5°C | 13.5°C | 15 | 3.7 | 12.613 h |
| May | 29.1°C14.9°C | 14.9°C | 44 | 7.6 | 13.113 h |
| June | 26.8°C15.2°C | 15.2°C | 103 | 12.1 | 13.413 h |
| July | 24.9°C14.7°C | 14.7°C | 112 | 14.8 | 13.313 h |
| August, selected | 25.1°C14.8°C | 14.8°C | 101 | 12.5 | 12.813 h |
| September | 23.8°C14.5°C | 14.5°C | 100 | 12.2 | 12.312 h |
| October | 23.8°C12.6°C | 12.6°C | 37 | 6.4 | 11.712 h |
| November | 23.2°C10.7°C | 10.7°C | 12 | 2.3 | 11.211 h |
| December | 22.6°C9.2°C | 9.2°C | 4.4 | 1.0 | 10.911 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
August in nearby cities
- Celaya in AugustMexico · 44 kmHigh 25.8°C · Low 14.9°C · 122 mm rain
- Santiago de Querétaro in AugustMexico · 52 kmHigh 25.6°C · Low 14.8°C · 116 mm rain
- El Pueblito in AugustMexico · 52 kmHigh 24.9°C · Low 14.4°C · 116 mm rain
- Guanajuato in AugustMexico · 55 kmHigh 24.6°C · Low 14.1°C · 141 mm rain
- Salamanca, Mexico in AugustMexico · 61 kmHigh 26.3°C · Low 15.3°C · 146 mm rain
- Irapuato in AugustMexico · 69 kmHigh 26.1°C · Low 14.9°C · 135 mm rain
- Silao de la Victoria in AugustMexico · 71 kmHigh 25.9°C · Low 15.1°C · 129 mm rain
- San Juan del Río in AugustMexico · 97 kmHigh 24.3°C · Low 14.2°C · 82 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 de Allende) is explained once on the San Miguel de Allende year overview and on the Sources, method and limits page.