Average annual temperature is 17.5 °C
Absolute maximum temperature: 44.7 °C
Absolute minimum temperature: -2.7 °C
Number of sunny days: 267 days
Number of rainy days: 98 days
Look at detailed online map of Castelnou
* Weather data for Castelnou Spain is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 15.1 | 20.4 | 29.4 | 31.6 | 31.7 | 39.5 | 44.7 | 41.6 | 34.6 | 34.0 | 25.0 | 19.1 |
| Average daytime temperature (°C) | 11.0 | 12.9 | 21.5 | 24.7 | 25.7 | 30.4 | 35.4 | 35.1 | 29.4 | 25.9 | 19.0 | 12.6 |
| Average temperature (°C) | 6.7 | 7.0 | 14.9 | 17.6 | 19.1 | 24.0 | 27.6 | 27.7 | 22.9 | 19.8 | 13.7 | 8.4 |
| Average night temperature (°C) | 3.3 | 1.9 | 8.7 | 10.9 | 13.0 | 18.1 | 20.5 | 20.9 | 17.1 | 14.6 | 9.3 | 4.8 |
| Absolute minimum temperature (°C) | -0.5 | -2.3 | -0.9 | 5.8 | 9.7 | 13.0 | 17.0 | 15.6 | 10.1 | 8.4 | 2.4 | -2.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.3 | 8.4 | 9.7 | 10.9 | 12.2 | 11.3 | 13.4 | 12.3 | 10.1 | 8.2 | 7.6 | 7.1 |
| Precipitation (mm) | 22 | 16 | 8 | 7 | 19 | 65 | 13 | 0 | 63 | 31 | 22 | 22 |
| Sunny days | 22 | 23 | 29 | 25 | 20 | 13 | 22 | 29 | 17 | 20 | 22 | 25 |
| Rainy days | 9 | 5 | 2 | 5 | 11 | 17 | 9 | 2 | 13 | 11 | 8 | 6 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Castelnou during the most sunny months:
The largest precipitation sum in Castelnou is at