Climate averages 1991–2020
San Luis Potosí weather
in August.
A warm, moderately wet month: the 5th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in San Luis Potosí: daytime highs average 25.2°C and nights cool to about 15.1°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 62 mm of rain on roughly 10 days, which makes August a moderately wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 54 min on an average August day.
The nearest other city in this atlas is Soledad de Graciano Sánchez (5 km away). In August its highs average 25.2°C, about as warm as San Luis Potosí, with 62 mm of rain.
Among the 153 cities listed in Mexico, San Luis Potosí ranks joint 98th of 153 for the warmest August highs and joint 30th of 153 for the driest August (rainfall, lowest first). The mean August high of those 153 cities is 27.9°C; San Luis Potosí is 2.7°C cooler than that mean.
From August to September, average highs fall by 1.9°C to 23.2°C, and monthly rainfall rises from 62 mm to 82 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 Luis Potosí climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 20.3°C6.4°C | 6.4°C | 15 | 3.0 | 10.911 h |
| February | 22.9°C7.9°C | 7.9°C | 14 | 2.5 | 11.411 h |
| March | 25.5°C9.9°C | 9.9°C | 15 | 3.4 | 12.012 h |
| April | 27.9°C12.5°C | 12.5°C | 22 | 4.5 | 12.613 h |
| May | 28.3°C14.7°C | 14.7°C | 50 | 9.2 | 13.213 h |
| June | 26.3°C15.5°C | 15.5°C | 73 | 11.3 | 13.513 h |
| July | 24.8°C15.0°C | 15.0°C | 83 | 10.5 | 13.313 h |
| August, selected | 25.2°C15.1°C | 15.1°C | 62 | 9.8 | 12.913 h |
| September | 23.2°C14.5°C | 14.5°C | 82 | 12.4 | 12.312 h |
| October | 22.7°C12.2°C | 12.2°C | 42 | 7.1 | 11.712 h |
| November | 21.5°C9.2°C | 9.2°C | 17 | 3.2 | 11.111 h |
| December | 20.9°C7.3°C | 7.3°C | 10 | 1.8 | 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
August in nearby cities
- Soledad de Graciano Sánchez in AugustMexico · 5 kmHigh 25.2°C · Low 15.2°C · 62 mm rain
- Guanajuato in AugustMexico · 130 kmHigh 24.6°C · Low 14.1°C · 141 mm rain
- Lagos de Moreno in AugustMexico · 133 kmHigh 25.0°C · Low 14.3°C · 126 mm rain
- León de los Aldama in AugustMexico · 136 kmHigh 25.3°C · Low 14.4°C · 117 mm rain
- Aguascalientes in AugustMexico · 139 kmHigh 25.7°C · Low 14.6°C · 89 mm rain
- San Miguel de Allende in AugustMexico · 140 kmHigh 25.1°C · Low 14.8°C · 101 mm rain
- Silao de la Victoria in AugustMexico · 142 kmHigh 25.9°C · Low 15.1°C · 129 mm rain
- San Francisco del Rincón in AugustMexico · 156 kmHigh 25.6°C · Low 15.2°C · 117 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 Luis Potosí) is explained once on the San Luis Potosí year overview and on the Sources, method and limits page.
Soledad de Graciano Sánchez lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.