Average annual temperature is 23.1 °C
Absolute maximum temperature: 34.3 °C
Absolute minimum temperature: 12.9 °C
Number of sunny days: 24 days
Number of rainy days: 341 days
Look at detailed online map of Rosario
* Weather data for Rosario Peru is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 30.3 | 29.6 | 29.7 | 29.1 | 28.4 | 28.3 | 28.1 | 30.0 | 31.1 | 34.3 | 32.0 | 30.7 |
| Average daytime temperature (°C) | 27.6 | 27.5 | 27.7 | 27.7 | 26.5 | 25.6 | 25.9 | 28.1 | 29.0 | 30.1 | 28.8 | 28.5 |
| Average temperature (°C) | 23.3 | 23.3 | 23.4 | 23.2 | 22.5 | 20.8 | 21.6 | 22.5 | 23.6 | 25.0 | 24.4 | 24.3 |
| Average night temperature (°C) | 20.0 | 20.3 | 20.1 | 19.7 | 19.3 | 16.8 | 18.1 | 17.7 | 18.9 | 20.5 | 20.8 | 21.0 |
| Absolute minimum temperature (°C) | 17.6 | 17.0 | 18.3 | 15.6 | 17.0 | 12.9 | 15.5 | 15.4 | 16.5 | 18.2 | 17.3 | 19.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.8 | 12.5 | 12.2 | 11.8 | 11.5 | 11.3 | 11.4 | 11.7 | 12.0 | 12.4 | 12.7 | 12.9 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 8.4 | 7.5 | 8.2 | 8.9 | 8.1 | 8.7 | 8.8 | 10.0 | 9.9 | 9.6 | 9.4 | 8.5 |
| Precipitation (mm) | 401 | 291 | 320 | 163 | 179 | 98 | 177 | 55 | 87 | 151 | 272 | 313 |
| Sunny days | 0 | 0 | 0 | 1 | 0 | 7 | 3 | 6 | 4 | 3 | 0 | 0 |
| Rainy days | 31 | 28 | 31 | 29 | 31 | 23 | 28 | 25 | 26 | 28 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Rosario is at