Average annual temperature is 20.8 °C
Absolute maximum temperature: 41.7 °C
Absolute minimum temperature: -1.2 °C
Number of sunny days: 188 days
Number of rainy days: 177 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) | 24.7 | 27.4 | 27.8 | 29.2 | 32.6 | 37.9 | 39.3 | 41.7 | 38.1 | 33.4 | 29.2 | 24.4 |
| Average daytime temperature (°C) | 17.7 | 19.4 | 22.5 | 23.9 | 29.6 | 33.9 | 36.0 | 38.4 | 33.5 | 27.7 | 20.1 | 17.3 |
| Average temperature (°C) | 12.6 | 13.8 | 16.7 | 18.3 | 23.6 | 27.5 | 29.8 | 32.1 | 27.3 | 21.4 | 14.4 | 11.6 |
| Average night temperature (°C) | 8.9 | 9.5 | 12.3 | 14.0 | 18.6 | 22.5 | 24.8 | 26.5 | 22.1 | 16.1 | 10.3 | 6.9 |
| Absolute minimum temperature (°C) | -1.2 | -0.1 | -1.0 | 8.7 | 11.8 | 19.5 | 21.1 | 21.8 | 18.2 | 6.7 | 2.0 | -0.7 |
| 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 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.3 | 11.1 | 12.0 | 13.0 | 13.8 | 14.2 | 14.0 | 13.3 | 12.4 | 11.4 | 10.6 | 10.1 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 6.7 | 7.3 | 8.3 | 8.3 | 10.5 | 11.6 | 11.5 | 11.8 | 10.8 | 8.9 | 6.7 | 7.8 |
| Precipitation (mm) | 195 | 99 | 68 | 199 | 79 | 146 | 61 | 26 | 27 | 26 | 72 | 102 |
| Sunny days | 10 | 10 | 10 | 10 | 15 | 8 | 17 | 25 | 20 | 24 | 17 | 22 |
| Rainy days | 21 | 18 | 21 | 20 | 16 | 22 | 14 | 6 | 10 | 7 | 13 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Jena during the most sunny months:
The largest precipitation sum in Jena is at