Average annual temperature is 26.7 °C
Absolute maximum temperature: 36.4 °C
Absolute minimum temperature: 15.6 °C
Number of sunny days: 127 days
Number of rainy days: 238 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) | 34.0 | 35.1 | 34.1 | 35.0 | 36.4 | 34.1 | 34.1 | 33.9 | 33.3 | 32.8 | 32.8 | 33.9 |
| Average daytime temperature (°C) | 31.4 | 32.3 | 32.7 | 33.4 | 34.5 | 32.2 | 32.1 | 32.1 | 31.8 | 30.6 | 31.4 | 31.8 |
| Average temperature (°C) | 25.4 | 26.3 | 26.8 | 27.8 | 29.0 | 27.5 | 26.9 | 26.8 | 26.5 | 25.9 | 26.0 | 25.2 |
| Average night temperature (°C) | 20.7 | 21.1 | 22.0 | 23.1 | 24.3 | 23.9 | 22.6 | 23.0 | 22.5 | 22.5 | 22.0 | 20.1 |
| Absolute minimum temperature (°C) | 18.4 | 19.0 | 20.1 | 21.1 | 22.2 | 21.1 | 21.0 | 21.5 | 21.0 | 19.9 | 20.3 | 15.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.3 | 11.6 | 12.0 | 12.5 | 12.9 | 13.1 | 13.0 | 12.6 | 12.2 | 11.8 | 11.4 | 11.2 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.5 | 10.8 | 11.0 | 11.2 | 11.3 | 10.0 | 9.7 | 9.6 | 10.0 | 9.3 | 10.0 | 10.1 |
| Precipitation (mm) | 3 | 5 | 16 | 32 | 62 | 190 | 235 | 330 | 208 | 203 | 74 | 10 |
| Sunny days | 25 | 24 | 19 | 19 | 10 | 1 | 1 | 0 | 0 | 1 | 7 | 20 |
| Rainy days | 6 | 4 | 12 | 11 | 21 | 29 | 30 | 31 | 30 | 30 | 23 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Río Grande is at