Average annual temperature is 13.0 °C
Absolute maximum temperature: 36.5 °C
Absolute minimum temperature: -8.1 °C
Number of sunny days: 128 days
Number of rainy days: 231 days
Number of snow days: 6 days
Look at detailed online map of Jena
* Weather data for Jena Romania is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 16.2 | 15.2 | 20.9 | 18.8 | 25.2 | 31.9 | 36.5 | 35.2 | 30.8 | 27.0 | 19.3 | 16.7 |
| Average daytime temperature (°C) | 8.8 | 6.9 | 12.9 | 13.9 | 21.1 | 24.4 | 28.8 | 28.7 | 26.2 | 21.2 | 11.3 | 8.7 |
| Average temperature (°C) | 5.3 | 2.3 | 7.8 | 9.5 | 16.3 | 19.7 | 23.3 | 23.1 | 20.3 | 15.8 | 7.8 | 4.4 |
| Average night temperature (°C) | 2.5 | -1.4 | 2.9 | 5.1 | 11.6 | 14.8 | 17.8 | 17.5 | 15.2 | 10.9 | 4.1 | 1.0 |
| Absolute minimum temperature (°C) | -2.4 | -8.1 | -3.7 | -0.5 | 6.7 | 10.0 | 12.9 | 10.4 | 12.1 | 1.5 | -3.3 | -4.6 |
| 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 | 8.0 |
| Daylight mean duration (h) | 9.2 | 10.4 | 11.9 | 13.5 | 14.9 | 15.6 | 15.3 | 14.1 | 12.5 | 10.9 | 9.5 | 8.8 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 4.0 | 6.3 | 7.7 | 7.5 | 9.9 | 10.7 | 12.9 | 11.8 | 10.5 | 8.3 | 3.6 | 4.9 |
| Precipitation (mm) | 84 | 133 | 81 | 96 | 77 | 130 | 56 | 78 | 32 | 46 | 159 | 124 |
| Sunny days | 7 | 16 | 11 | 5 | 5 | 5 | 10 | 11 | 17 | 22 | 5 | 14 |
| Rainy days | 21 | 11 | 20 | 25 | 26 | 25 | 21 | 20 | 13 | 9 | 24 | 16 |
| Snow days | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The best time to visit Jena during the most sunny months:
Months with the longest average daylight duration in Jena:
The largest precipitation sum in Jena is at