Climate averages 1991–2020
Zacatecas weather
in September.
A mild, wet month: the joint 7th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Zacatecas: daytime highs average 20.7°C and nights cool to about 10.7°C. By daytime temperature it is the joint 7th warmest of the 12 months.
Expect about 107 mm of rain on roughly 13 days, which makes September a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 18 min on an average September day.
The nearest other city in this atlas is Guadalupe (7 km away). In September its highs average 22.0°C, 1.2°C warmer than Zacatecas, with 107 mm of rain.
Among the 153 cities listed in Mexico, Zacatecas ranks joint 135th of 153 for the warmest September highs and joint 42nd of 153 for the driest September (rainfall, lowest first). The mean September high of those 153 cities is 26.5°C; Zacatecas is 5.8°C cooler than that mean.
From September to October, average highs fall by 0.1°C to 20.7°C, and monthly rainfall falls from 107 mm to 37 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
Zacatecas climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 17.2°C3.4°C | 3.4°C | 16 | 2.6 | 10.911 h |
| February | 19.4°C4.7°C | 4.7°C | 13 | 1.9 | 11.411 h |
| March | 21.8°C6.2°C | 6.2°C | 7.8 | 1.9 | 12.012 h |
| April | 24.4°C8.6°C | 8.6°C | 10 | 2.7 | 12.713 h |
| May | 25.8°C10.9°C | 10.9°C | 31 | 5.7 | 13.213 h |
| June | 24.5°C12.1°C | 12.1°C | 90 | 10.7 | 13.514 h |
| July | 22.5°C11.3°C | 11.3°C | 124 | 12.5 | 13.413 h |
| August | 22.4°C11.2°C | 11.2°C | 99 | 11.5 | 12.913 h |
| September, selected | 20.7°C10.7°C | 10.7°C | 107 | 12.6 | 12.312 h |
| October | 20.7°C8.6°C | 8.6°C | 37 | 5.9 | 11.612 h |
| November | 19.3°C5.9°C | 5.9°C | 15 | 2.5 | 11.111 h |
| December | 17.8°C4.4°C | 4.4°C | 8.3 | 1.6 | 10.811 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
- Guadalupe in SeptemberMexico · 7 kmHigh 22.0°C · Low 11.9°C · 107 mm rain
- Fresnillo in SeptemberMexico · 54 kmHigh 22.6°C · Low 12.1°C · 98 mm rain
- Aguascalientes in SeptemberMexico · 103 kmHigh 24.3°C · Low 14.2°C · 90 mm rain
- Lagos de Moreno in SeptemberMexico · 170 kmHigh 23.9°C · Low 14.0°C · 108 mm rain
- San Luis Potosí in SeptemberMexico · 179 kmHigh 23.2°C · Low 14.5°C · 82 mm rain
- Soledad de Graciano Sánchez in SeptemberMexico · 181 kmHigh 23.2°C · Low 14.6°C · 82 mm rain
- León de los Aldama in SeptemberMexico · 205 kmHigh 24.2°C · Low 14.0°C · 100 mm rain
- San Francisco del Rincón in SeptemberMexico · 208 kmHigh 24.7°C · Low 14.8°C · 100 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 Zacatecas) is explained once on the Zacatecas year overview and on the Sources, method and limits page.
Guadalupe lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.