Climate averages 1991–2020
San Luis Potosí 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 Luis Potosí: daytime highs average 28.3°C and nights cool to about 14.7°C. By daytime temperature it is the warmest month of the year.
Expect about 50 mm of rain on roughly 9 days, which makes May a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 11 min on an average May day.
The nearest other city in this atlas is Soledad de Graciano Sánchez (5 km away). In May its highs average 28.3°C, about as warm as San Luis Potosí, with 50 mm of rain.
Among the 153 cities listed in Mexico, San Luis Potosí ranks joint 101st of 153 for the warmest May highs and joint 87th of 153 for the driest May (rainfall, lowest first). The mean May high of those 153 cities is 29.6°C; San Luis Potosí is 1.3°C cooler than that mean.
From May to June, average highs fall by 2.0°C to 26.3°C, and monthly rainfall rises from 50 mm to 73 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 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, selected | 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 | 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
May in nearby cities
- Soledad de Graciano Sánchez in MayMexico · 5 kmHigh 28.3°C · Low 14.8°C · 50 mm rain
- Guanajuato in MayMexico · 130 kmHigh 29.1°C · Low 14.9°C · 48 mm rain
- Lagos de Moreno in MayMexico · 133 kmHigh 29.6°C · Low 15.2°C · 31 mm rain
- León de los Aldama in MayMexico · 136 kmHigh 30.2°C · Low 15.8°C · 27 mm rain
- Aguascalientes in MayMexico · 139 kmHigh 29.9°C · Low 15.0°C · 28 mm rain
- San Miguel de Allende in MayMexico · 140 kmHigh 29.1°C · Low 14.9°C · 44 mm rain
- Silao de la Victoria in MayMexico · 142 kmHigh 30.7°C · Low 16.3°C · 35 mm rain
- San Francisco del Rincón in MayMexico · 156 kmHigh 30.5°C · Low 16.1°C · 27 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.