Average annual temperature is 14.9 °C
Absolute maximum temperature: 37.6 °C
Absolute minimum temperature: -4.5 °C
Number of sunny days: 155 days
Number of rainy days: 209 days
Number of snow days: 1 day
Look at detailed online map of Castelnau-Chalosse
* Weather data for Castelnau-Chalosse France is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 21.6 | 19.1 | 28.2 | 29.1 | 28.0 | 31.0 | 33.8 | 37.6 | 33.8 | 33.8 | 23.8 | 18.2 |
| Average daytime temperature (°C) | 10.6 | 12.3 | 17.1 | 18.7 | 21.4 | 26.2 | 26.7 | 28.2 | 27.5 | 23.5 | 15.4 | 12.7 |
| Average temperature (°C) | 6.6 | 5.7 | 11.7 | 13.2 | 16.3 | 21.1 | 21.5 | 22.4 | 21.5 | 18.1 | 11.7 | 8.8 |
| Average night temperature (°C) | 3.1 | 0.5 | 6.9 | 8.3 | 11.6 | 16.7 | 16.7 | 17.3 | 16.6 | 13.4 | 8.2 | 5.5 |
| Absolute minimum temperature (°C) | -4.5 | -3.9 | -3.4 | 2.0 | 7.2 | 14.0 | 13.3 | 10.6 | 10.8 | 9.0 | 0.7 | 0.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.4 | 10.5 | 11.9 | 13.4 | 14.7 | 15.4 | 15.1 | 13.9 | 12.5 | 11.0 | 9.7 | 9.0 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 4.7 | 7.5 | 7.3 | 8.4 | 10.7 | 10.8 | 10.8 | 11.0 | 9.9 | 7.7 | 4.9 | 4.6 |
| Precipitation (mm) | 148 | 32 | 73 | 106 | 89 | 83 | 23 | 45 | 86 | 122 | 215 | 119 |
| Sunny days | 15 | 21 | 13 | 12 | 8 | 8 | 17 | 15 | 17 | 14 | 6 | 9 |
| Rainy days | 16 | 6 | 18 | 18 | 23 | 22 | 14 | 16 | 13 | 17 | 24 | 22 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Castelnau-Chalosse during the most sunny months:
Months with the longest average daylight duration in Castelnau-Chalosse:
The largest precipitation sum in Castelnau-Chalosse is at