Climate averages 1991–2020
San Miguel de Allende weather
in May.
A hot, moderately wet month: the 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 de Allende: daytime highs average 29.1°C and nights cool to about 14.9°C. By daytime temperature it is the warmest month of the year.
Expect about 44 mm of rain on roughly 8 days, which makes May a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 07 min on an average May day.
The nearest other city in this atlas is Celaya (44 km away). In May its highs average 30.3°C, 1.2°C warmer than San Miguel de Allende, with 45 mm of rain.
Among the 153 cities listed in Mexico, San Miguel de Allende ranks joint 95th of 153 for the warmest May highs and joint 74th of 153 for the driest May (rainfall, lowest first). The mean May high of those 153 cities is 29.6°C; San Miguel de Allende is 0.5°C cooler than that mean.
From May to June, average highs fall by 2.3°C to 26.8°C, and monthly rainfall rises from 44 mm to 103 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 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, selected | 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 | 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
May in nearby cities
- Celaya in MayMexico · 44 kmHigh 30.3°C · Low 15.0°C · 45 mm rain
- Santiago de Querétaro in MayMexico · 52 kmHigh 29.7°C · Low 14.8°C · 45 mm rain
- El Pueblito in MayMexico · 52 kmHigh 29.2°C · Low 14.3°C · 45 mm rain
- Guanajuato in MayMexico · 55 kmHigh 29.1°C · Low 14.9°C · 48 mm rain
- Salamanca, Mexico in MayMexico · 61 kmHigh 31.4°C · Low 16.1°C · 37 mm rain
- Irapuato in MayMexico · 69 kmHigh 31.1°C · Low 15.8°C · 36 mm rain
- Silao de la Victoria in MayMexico · 71 kmHigh 30.7°C · Low 16.3°C · 35 mm rain
- San Juan del Río in MayMexico · 97 kmHigh 28.3°C · Low 14.1°C · 38 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.