Average annual temperature is 23.7 °C
Absolute maximum temperature: 43.7 °C
Absolute minimum temperature: 3.8 °C
Number of sunny days: 204 days
Number of rainy days: 161 days
Look at detailed online map of Juan José Castelli
* Weather data for Juan José Castelli 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) | 41.5 | 38.1 | 34.3 | 33.2 | 29.0 | 29.3 | 30.4 | 34.7 | 39.8 | 43.7 | 42.5 | 40.4 |
| Average daytime temperature (°C) | 35.3 | 32.1 | 31.6 | 26.4 | 23.6 | 22.7 | 22.8 | 27.8 | 28.6 | 32.0 | 32.8 | 33.3 |
| Average temperature (°C) | 29.3 | 26.8 | 26.6 | 21.5 | 19.1 | 18.4 | 18.1 | 21.5 | 22.2 | 25.7 | 27.2 | 28.1 |
| Average night temperature (°C) | 23.8 | 22.1 | 22.6 | 17.5 | 15.7 | 15.2 | 14.6 | 16.5 | 17.5 | 20.3 | 22.5 | 23.9 |
| Absolute minimum temperature (°C) | 16.3 | 13.4 | 19.7 | 12.2 | 9.2 | 3.9 | 3.8 | 8.9 | 8.8 | 11.9 | 11.7 | 18.9 |
| 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 | 13.0 | 13.0 | 13.0 |
| Daylight mean duration (h) | 13.5 | 13.0 | 12.2 | 11.5 | 10.9 | 10.5 | 10.7 | 11.2 | 11.9 | 12.7 | 13.4 | 13.7 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 |
| Sunshine mean duration (h) | 11.2 | 11.0 | 10.2 | 8.4 | 6.6 | 7.2 | 7.6 | 9.3 | 9.1 | 9.5 | 9.7 | 10.2 |
| Precipitation (mm) | 97 | 65 | 164 | 84 | 81 | 19 | 31 | 12 | 34 | 58 | 155 | 171 |
| Sunny days | 19 | 13 | 14 | 17 | 17 | 17 | 21 | 28 | 21 | 15 | 11 | 11 |
| Rainy days | 12 | 15 | 17 | 13 | 14 | 13 | 10 | 3 | 9 | 16 | 19 | 20 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Juan José Castelli is at