Average annual temperature is 21.2 °C
Absolute maximum temperature: 35.7 °C
Absolute minimum temperature: 1.0 °C
Number of sunny days: 154 days
Number of rainy days: 211 days
Look at detailed online map of Jena
* Weather data for Jena United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 24.5 | 25.7 | 28.2 | 29.6 | 32.2 | 34.2 | 32.4 | 35.7 | 32.5 | 31.0 | 28.8 | 24.6 |
| Average daytime temperature (°C) | 19.5 | 22.2 | 23.5 | 26.4 | 28.4 | 29.7 | 30.9 | 32.7 | 30.5 | 26.9 | 22.3 | 18.8 |
| Average temperature (°C) | 14.4 | 17.2 | 18.7 | 21.3 | 23.3 | 25.6 | 27.6 | 28.3 | 25.4 | 21.6 | 17.0 | 14.3 |
| Average night temperature (°C) | 10.4 | 13.6 | 14.5 | 17.0 | 19.0 | 22.3 | 24.5 | 24.7 | 21.4 | 17.2 | 13.0 | 10.8 |
| Absolute minimum temperature (°C) | 1.0 | 4.0 | 3.7 | 11.3 | 13.9 | 19.2 | 22.0 | 22.1 | 17.1 | 10.0 | 3.5 | 3.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.5 | 11.1 | 12.0 | 12.9 | 13.6 | 14.0 | 13.8 | 13.2 | 12.3 | 11.5 | 10.7 | 10.3 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 8.3 | 8.5 | 9.8 | 10.4 | 11.9 | 10.9 | 11.1 | 11.6 | 10.5 | 9.6 | 7.3 | 6.8 |
| Precipitation (mm) | 60 | 80 | 58 | 83 | 76 | 281 | 184 | 127 | 75 | 42 | 73 | 126 |
| Sunny days | 20 | 20 | 15 | 10 | 9 | 4 | 4 | 5 | 10 | 21 | 17 | 19 |
| Rainy days | 11 | 8 | 16 | 20 | 22 | 26 | 27 | 26 | 20 | 10 | 13 | 12 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Jena is at