Jena weather in January
Temperature, rain and sunshine in January: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in January
Poor
Best time to visit: May – September
What is the weather like in Jena in January?
In January, Jena is cold: daytime highs average 4 °C, and nights often drop below freezing (−1 °C). The sun is scarce, with only about 2 hours a day. Precipitation, often as snow, falls on about 12 days, totalling 46 mm. Snow falls on about 4 days. All in all, January is not an ideal month for a holiday in Jena.
January compared
How the weather changes from December to February. Tap a month to open it.
| DecemberDec | JanuaryJan | FebruaryFeb | |
|---|---|---|---|
| Score | 14 | 14 | 17 |
| Day | 5° | 4° | 6° |
| Night | 0° | −1° | −1° |
| Sun | 2 h | 2 h | 3 h |
| Rain days | 12 | 12 | 10 |
More details for January
- Daylight
- 8 h 24 min08:10 – 16:34
- UV index
- 1 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 19 km/haverage daily peakAll months
- Cloud cover
- 77 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 4 days1 cm or more of fresh snowAll months
- Time zone
- UTC+1Europe/Berlin
How the score comes together
- Temperatureweight 50 %0 %
- Sunshineweight 20 %0 %
- Few rainy daysweight 30 %45 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in January
- Warm jacket
- Hat, scarf & gloves
- Rain jacket or umbrella
Jena in January: quick answers
Is Jena hot in January?
No. In January, Jena is cold: daytime highs average 4 °C and nights drop to about −1 °C.
Does it rain much in Jena in January?
Rain is frequent, with about 12 rainy days and 46 mm in total.
Jena month by month
The whole year in JenaAll destinations: GermanyWhere to go in January
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences