Average annual temperature is 21.0 °C
Absolute maximum temperature: 44.5 °C
Absolute minimum temperature: -2.3 °C
Number of sunny days: 267 days
Number of rainy days: 98 days
Look at detailed online map of Río Santa María
* Weather data for Río Santa María Mexico is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 27.5 | 28.3 | 30.5 | 36.2 | 37.4 | 44.5 | 39.6 | 39.0 | 41.3 | 36.7 | 33.1 | 28.7 |
| Average daytime temperature (°C) | 22.0 | 23.2 | 25.6 | 30.4 | 33.1 | 38.5 | 36.8 | 35.7 | 36.4 | 31.5 | 26.6 | 24.7 |
| Average temperature (°C) | 12.9 | 13.7 | 16.6 | 20.3 | 24.0 | 28.7 | 27.9 | 26.9 | 26.6 | 22.3 | 17.7 | 14.4 |
| Average night temperature (°C) | 5.4 | 6.3 | 8.6 | 9.9 | 13.8 | 18.4 | 19.9 | 20.0 | 18.5 | 14.9 | 10.7 | 6.7 |
| Absolute minimum temperature (°C) | -2.3 | 1.0 | -0.2 | 4.2 | 9.8 | 13.5 | 17.8 | 17.2 | 15.6 | 7.6 | 4.6 | 2.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.6 | 11.2 | 12.0 | 12.8 | 13.5 | 13.9 | 13.7 | 13.1 | 12.3 | 11.5 | 10.8 | 10.4 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 8.9 | 9.2 | 10.1 | 11.9 | 12.2 | 12.5 | 12.3 | 11.4 | 11.3 | 9.7 | 9.3 | 9.1 |
| Precipitation (mm) | 29 | 43 | 32 | 0 | 4 | 7 | 26 | 22 | 5 | 56 | 12 | 17 |
| Sunny days | 22 | 19 | 24 | 30 | 28 | 26 | 10 | 10 | 24 | 23 | 25 | 26 |
| Rainy days | 9 | 9 | 7 | 0 | 3 | 4 | 21 | 21 | 6 | 8 | 5 | 5 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Río Santa María is at