Climate averages 1991–2020
Jena weather
in May.
A mild, moderately wet month: the 5th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Jena: daytime highs average 18.2°C and nights cool to about 9.1°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 62 mm of rain on roughly 11 days, which makes May a moderately wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 30 min on an average May day.
The nearest other city in this atlas is Gera (35 km away). In May its highs average 18.0°C, about as warm as Jena, with 66 mm of rain.
Among the 120 cities listed in Germany, Jena ranks joint 36th of 120 for the warmest May highs and joint 42nd of 120 for the driest May (rainfall, lowest first). The mean May high of those 120 cities is 17.9°C; Jena is 0.4°C warmer than that mean.
From May to June, average highs rise by 3.1°C to 21.4°C, and monthly rainfall falls from 62 mm to 59 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Jena climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.8°C-1.1°C | -1.1°C | 44 | 11.2 | 8.58 h |
| February | 5.3°C-1.0°C | -1.0°C | 35 | 9.5 | 10.010 h |
| March | 9.1°C1.2°C | 1.2°C | 48 | 12.2 | 11.812 h |
| April | 14.2°C4.6°C | 4.6°C | 40 | 9.3 | 13.814 h |
| May, selected | 18.2°C9.1°C | 9.1°C | 62 | 10.6 | 15.516 h |
| June | 21.4°C12.6°C | 12.6°C | 59 | 11.2 | 16.416 h |
| July | 23.6°C14.8°C | 14.8°C | 71 | 11.6 | 16.016 h |
| August | 23.6°C14.7°C | 14.7°C | 61 | 10.6 | 14.615 h |
| September | 19.1°C11.0°C | 11.0°C | 55 | 9.8 | 12.713 h |
| October | 13.9°C7.3°C | 7.3°C | 48 | 10.0 | 10.811 h |
| November | 8.2°C3.2°C | 3.2°C | 50 | 10.4 | 9.09 h |
| December | 4.5°C0.2°C | 0.2°C | 50 | 11.5 | 8.08 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Gera in MayGermany · 35 kmHigh 18.0°C · Low 9.2°C · 66 mm rain
- Erfurt in MayGermany · 39 kmHigh 17.7°C · Low 8.3°C · 63 mm rain
- Zwickau in MayGermany · 67 kmHigh 17.8°C · Low 8.8°C · 75 mm rain
- Halle (Saale) in MayGermany · 67 kmHigh 18.4°C · Low 9.3°C · 54 mm rain
- Leipzig in MayGermany · 71 kmHigh 18.5°C · Low 9.2°C · 61 mm rain
- Chemnitz in MayGermany · 95 kmHigh 17.3°C · Low 8.5°C · 85 mm rain
- Bayreuth in MayGermany · 109 kmHigh 18.2°C · Low 8.7°C · 74 mm rain
- Bamberg in MayGermany · 125 kmHigh 18.8°C · Low 9.3°C · 68 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Jena) is explained once on the Jena year overview and on the Sources, method and limits page.