Average annual temperature is 24.5 °C
Absolute maximum temperature: 38.4 °C
Absolute minimum temperature: 13.1 °C
Number of sunny days: 53 days
Number of rainy days: 312 days
Look at detailed online map of Río Negro
* Weather data for Río Negro 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) | 30.6 | 31.6 | 34.5 | 38.4 | 34.3 | 35.5 | 31.5 | 32.3 | 30.8 | 34.7 | 30.4 | 31.0 |
| Average daytime temperature (°C) | 26.1 | 26.2 | 29.2 | 30.9 | 31.0 | 32.4 | 29.6 | 29.7 | 29.3 | 28.5 | 25.9 | 24.8 |
| Average temperature (°C) | 21.6 | 21.7 | 24.3 | 25.5 | 26.3 | 27.8 | 25.9 | 25.9 | 25.5 | 24.9 | 23.1 | 21.5 |
| Average night temperature (°C) | 17.8 | 18.2 | 20.1 | 20.6 | 21.7 | 23.1 | 23.0 | 22.6 | 22.5 | 22.1 | 21.0 | 18.9 |
| Absolute minimum temperature (°C) | 13.6 | 15.3 | 17.4 | 17.9 | 18.7 | 21.2 | 21.9 | 21.6 | 21.2 | 18.6 | 17.8 | 13.1 |
| 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) | 11.2 | 11.6 | 12.0 | 12.5 | 12.9 | 13.1 | 13.0 | 12.7 | 12.2 | 11.7 | 11.3 | 11.1 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.5 | 8.3 | 10.6 | 11.1 | 11.6 | 11.1 | 9.5 | 10.3 | 9.9 | 8.7 | 6.6 | 7.5 |
| Precipitation (mm) | 336 | 738 | 181 | 93 | 42 | 106 | 223 | 166 | 125 | 299 | 864 | 470 |
| Sunny days | 7 | 5 | 4 | 9 | 15 | 5 | 0 | 1 | 0 | 1 | 2 | 4 |
| Rainy days | 24 | 23 | 27 | 21 | 16 | 25 | 31 | 30 | 30 | 30 | 28 | 27 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Río Negro is at