Average annual temperature is 12.9 °C
Absolute maximum temperature: 34.4 °C
Absolute minimum temperature: -4.0 °C
Number of sunny days: 142 days
Number of rainy days: 223 days
Look at detailed online map of Osny
* Weather data for Osny 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) | 15.1 | 14.9 | 19.2 | 20.3 | 24.6 | 31.0 | 31.3 | 31.0 | 34.4 | 27.9 | 17.0 | 14.1 |
| Average daytime temperature (°C) | 8.2 | 9.4 | 11.9 | 13.7 | 18.8 | 25.8 | 24.3 | 23.9 | 25.2 | 19.0 | 11.6 | 9.8 |
| Average temperature (°C) | 5.9 | 5.6 | 8.6 | 9.6 | 14.2 | 20.4 | 19.7 | 19.4 | 19.8 | 14.4 | 8.9 | 7.4 |
| Average night temperature (°C) | 3.4 | 2.2 | 5.2 | 5.4 | 9.5 | 14.8 | 14.8 | 15.0 | 14.7 | 10.3 | 6.3 | 5.2 |
| Absolute minimum temperature (°C) | -3.0 | -4.0 | -2.0 | -0.3 | 5.9 | 9.4 | 11.4 | 11.1 | 7.4 | 4.3 | -0.8 | -3.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 15.0 | 16.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.8 | 10.2 | 11.9 | 13.7 | 15.3 | 16.1 | 15.7 | 14.3 | 12.6 | 10.8 | 9.2 | 8.3 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 10.0 | 12.0 | 14.0 | 15.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 3.0 | 4.9 | 6.2 | 7.9 | 11.1 | 12.8 | 11.1 | 10.2 | 9.4 | 6.8 | 4.4 | 2.6 |
| Precipitation (mm) | 70 | 6 | 91 | 65 | 51 | 61 | 81 | 115 | 78 | 98 | 102 | 70 |
| Sunny days | 10 | 18 | 7 | 11 | 18 | 17 | 8 | 8 | 18 | 13 | 6 | 8 |
| Rainy days | 21 | 10 | 24 | 19 | 13 | 13 | 23 | 23 | 12 | 18 | 24 | 23 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Osny during the most sunny months:
Months with the longest average daylight duration in Osny:
The largest precipitation sum in Osny is at