Climate averages 1991–2020
Guanajuato weather
in January.
A mild, very dry month: the coolest and the joint 2nd driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
January is a mild month in Guanajuato: daytime highs average 21.4°C and nights cool to about 8.0°C. By daytime temperature it is the coolest month of the year.
Expect about 13 mm of rain on roughly 2 days, which makes January a very dry month (the joint 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 00 min on an average January day.
The nearest other city in this atlas is Silao de la Victoria (19 km away). In January its highs average 22.9°C, 1.5°C warmer than Guanajuato, with 12 mm of rain.
Among the 153 cities listed in Mexico, Guanajuato ranks joint 83rd of 153 for the warmest January highs and joint 49th of 153 for the driest January (rainfall, lowest first). The mean January high of those 153 cities is 22.4°C; Guanajuato is 1.0°C cooler than that mean.
From January to February, average highs rise by 2.3°C to 23.8°C, and monthly rainfall stays at 13 mm.
The annual picture
January 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
Guanajuato climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 21.4°C8.0°C | 8.0°C | 13 | 2.4 | 11.011 h |
| February | 23.8°C9.3°C | 9.3°C | 13 | 2.0 | 11.411 h |
| March | 26.3°C11.1°C | 11.1°C | 13 | 2.1 | 12.012 h |
| April | 28.6°C13.5°C | 13.5°C | 14 | 2.9 | 12.613 h |
| May | 29.1°C14.9°C | 14.9°C | 48 | 8.5 | 13.113 h |
| June | 26.8°C14.9°C | 14.9°C | 133 | 14.2 | 13.413 h |
| July | 24.4°C14.1°C | 14.1°C | 160 | 17.7 | 13.313 h |
| August | 24.6°C14.1°C | 14.1°C | 141 | 15.9 | 12.813 h |
| September | 23.4°C13.8°C | 13.8°C | 131 | 14.4 | 12.312 h |
| October | 23.5°C12.0°C | 12.0°C | 47 | 7.0 | 11.712 h |
| November | 22.9°C10.1°C | 10.1°C | 13 | 2.5 | 11.211 h |
| December | 21.9°C8.7°C | 8.7°C | 5.8 | 1.3 | 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
January in nearby cities
- Silao de la Victoria in JanuaryMexico · 19 kmHigh 22.9°C · Low 9.0°C · 12 mm rain
- Irapuato in JanuaryMexico · 40 kmHigh 23.4°C · Low 8.5°C · 10 mm rain
- León de los Aldama in JanuaryMexico · 45 kmHigh 22.2°C · Low 8.3°C · 13 mm rain
- Salamanca, Mexico in JanuaryMexico · 50 kmHigh 23.8°C · Low 8.9°C · 10 mm rain
- San Miguel de Allende in JanuaryMexico · 55 kmHigh 22.0°C · Low 8.3°C · 12 mm rain
- San Francisco del Rincón in JanuaryMexico · 62 kmHigh 22.7°C · Low 8.6°C · 13 mm rain
- Celaya in JanuaryMexico · 72 kmHigh 23.1°C · Low 8.1°C · 10 mm rain
- Lagos de Moreno in JanuaryMexico · 79 kmHigh 21.5°C · Low 7.8°C · 17 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 Guanajuato) is explained once on the Guanajuato year overview and on the Sources, method and limits page.