Climate averages 1991–2020
Fresnillo weather
in September.
A warm, wet month: the joint 7th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Fresnillo: daytime highs average 22.6°C and nights cool to about 12.1°C. By daytime temperature it is the joint 7th warmest of the 12 months.
Expect about 98 mm of rain on roughly 13 days, which makes September a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 18 min on an average September day.
The nearest other city in this atlas is Zacatecas (54 km away). In September its highs average 20.7°C, 1.8°C cooler than Fresnillo, with 107 mm of rain.
Among the 153 cities listed in Mexico, Fresnillo ranks joint 118th of 153 for the warmest September highs and joint 34th of 153 for the driest September (rainfall, lowest first). The mean September high of those 153 cities is 26.5°C; Fresnillo is 4.0°C cooler than that mean.
From September to October, average highs stay level at 22.6°C, and monthly rainfall falls from 98 mm to 31 mm.
The annual picture
September 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
Fresnillo climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 18.8°C4.1°C | 4.1°C | 15 | 2.6 | 10.911 h |
| February | 21.0°C5.4°C | 5.4°C | 11 | 1.6 | 11.411 h |
| March | 23.5°C7.0°C | 7.0°C | 7.6 | 1.5 | 12.012 h |
| April | 26.2°C9.6°C | 9.6°C | 8.5 | 2.2 | 12.713 h |
| May | 27.8°C12.2°C | 12.2°C | 20 | 4.7 | 13.213 h |
| June | 26.7°C13.7°C | 13.7°C | 68 | 9.7 | 13.514 h |
| July | 24.6°C13.0°C | 13.0°C | 94 | 11.8 | 13.413 h |
| August | 24.4°C12.8°C | 12.8°C | 79 | 10.9 | 12.913 h |
| September, selected | 22.6°C12.1°C | 12.1°C | 98 | 13.0 | 12.312 h |
| October | 22.6°C9.8°C | 9.8°C | 31 | 5.3 | 11.612 h |
| November | 21.0°C6.8°C | 6.8°C | 13 | 2.3 | 11.011 h |
| December | 19.4°C5.0°C | 5.0°C | 7.5 | 1.4 | 10.711 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
September in nearby cities
- Zacatecas in SeptemberMexico · 54 kmHigh 20.7°C · Low 10.7°C · 107 mm rain
- Guadalupe in SeptemberMexico · 60 kmHigh 22.0°C · Low 11.9°C · 107 mm rain
- Aguascalientes in SeptemberMexico · 156 kmHigh 24.3°C · Low 14.2°C · 90 mm rain
- Victoria de Durango in SeptemberMexico · 205 kmHigh 23.9°C · Low 14.1°C · 116 mm rain
- Lagos de Moreno in SeptemberMexico · 224 kmHigh 23.9°C · Low 14.0°C · 108 mm rain
- San Luis Potosí in SeptemberMexico · 225 kmHigh 23.2°C · Low 14.5°C · 82 mm rain
- Soledad de Graciano Sánchez in SeptemberMexico · 226 kmHigh 23.2°C · Low 14.6°C · 82 mm rain
- Matehuala in SeptemberMexico · 233 kmHigh 26.1°C · Low 16.1°C · 67 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 Fresnillo) is explained once on the Fresnillo year overview and on the Sources, method and limits page.