Average annual temperature is 22.0 °C
Absolute maximum temperature: 41.5 °C
Absolute minimum temperature: 4.6 °C
Number of sunny days: 203 days
Number of rainy days: 162 days
Look at detailed online map of Rosario de Río Grande
* Weather data for Rosario de Río Grande Argentina is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 39.6 | 36.7 | 34.0 | 29.3 | 29.7 | 28.9 | 29.8 | 36.8 | 37.0 | 39.2 | 41.5 | 39.9 |
| Average daytime temperature (°C) | 33.0 | 30.2 | 30.5 | 23.8 | 23.1 | 22.4 | 22.5 | 27.1 | 28.1 | 30.3 | 32.5 | 31.1 |
| Average temperature (°C) | 26.9 | 24.5 | 25.4 | 19.7 | 18.1 | 16.7 | 16.6 | 20.0 | 21.3 | 23.4 | 26.2 | 25.4 |
| Average night temperature (°C) | 21.6 | 19.9 | 21.2 | 16.6 | 14.4 | 12.5 | 12.1 | 14.1 | 15.8 | 17.5 | 20.9 | 21.1 |
| Absolute minimum temperature (°C) | 17.5 | 13.1 | 18.9 | 12.3 | 9.7 | 4.6 | 6.6 | 9.2 | 7.9 | 11.3 | 13.7 | 17.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 |
| Daylight mean duration (h) | 13.4 | 12.9 | 12.2 | 11.5 | 10.9 | 10.7 | 10.8 | 11.3 | 12.0 | 12.7 | 13.3 | 13.6 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 10.0 | 11.0 | 11.0 | 12.0 | 13.0 | 13.0 |
| Sunshine mean duration (h) | 11.0 | 10.7 | 10.3 | 8.6 | 8.5 | 8.9 | 8.4 | 10.2 | 9.7 | 10.3 | 10.1 | 10.3 |
| Precipitation (mm) | 172 | 131 | 164 | 153 | 29 | 7 | 8 | 0 | 29 | 56 | 87 | 170 |
| Sunny days | 11 | 8 | 10 | 12 | 20 | 24 | 24 | 30 | 22 | 20 | 13 | 9 |
| Rainy days | 20 | 20 | 21 | 18 | 11 | 6 | 7 | 1 | 8 | 11 | 17 | 22 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Rosario de Río Grande is at