Average annual temperature is 19.1 °C
Absolute maximum temperature: 38.0 °C
Absolute minimum temperature: 5.6 °C
Number of sunny days: 326 days
Number of rainy days: 39 days
Look at detailed online map of Río Grande
* Weather data for Río Grande 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) | 25.1 | 27.7 | 27.2 | 32.8 | 26.1 | 32.1 | 35.5 | 38.0 | 35.6 | 37.7 | 32.2 | 27.4 |
| Average daytime temperature (°C) | 19.8 | 20.5 | 21.7 | 23.2 | 22.1 | 25.3 | 31.2 | 32.3 | 30.0 | 29.3 | 26.5 | 23.7 |
| Average temperature (°C) | 14.6 | 14.7 | 15.4 | 16.1 | 16.2 | 18.6 | 23.2 | 25.5 | 23.2 | 22.5 | 20.8 | 17.7 |
| Average night temperature (°C) | 10.4 | 10.4 | 10.9 | 11.5 | 12.2 | 13.8 | 17.3 | 20.3 | 18.4 | 17.9 | 15.8 | 12.6 |
| Absolute minimum temperature (°C) | 5.6 | 7.3 | 7.0 | 8.5 | 10.7 | 11.5 | 13.7 | 17.7 | 14.6 | 12.6 | 11.6 | 9.5 |
| 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) | 8.7 | 9.0 | 10.1 | 10.7 | 11.6 | 11.7 | 12.5 | 11.5 | 11.2 | 10.6 | 9.1 | 9.1 |
| Precipitation (mm) | 25 | 29 | 4 | 0 | 0 | 0 | 0 | 20 | 0 | 0 | 8 | 8 |
| Sunny days | 23 | 20 | 25 | 29 | 31 | 27 | 31 | 29 | 28 | 29 | 25 | 29 |
| Rainy days | 8 | 8 | 6 | 1 | 0 | 3 | 0 | 2 | 2 | 2 | 5 | 2 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Río Grande is at