ClimateAverages

Jena Climate

Thuringia, Germany · population 104,712 · 373 weather stations within 200 km · records 1750 to 2025

Average annual daytime high
12.6°C
Warmest month · July
22.5°C
Typical daytime high
Coldest month · January
-3.5°C
Typical overnight low

Jena has an average annual daytime high of 12.6°C, based on the 1951 to 1980 baseline. Its warmest month is July, when highs typically reach 22.5°C, and its coldest is January, with overnight lows near -3.5°C.

Month by month averages

MonthAvg highAvg low
January1.9°C-3.5°CColdest
February3.5°C-3.1°C
March7.8°C-0.7°C
April12.5°C2.4°C
May17.4°C6.5°C
June21.0°C10.1°C
July22.5°C11.8°CWarmest
August22.3°C11.5°C
September18.8°C8.6°C
October13.1°C4.6°C
November6.9°C1.2°C
December3.2°C-1.9°C

Temperature range across the year

-5°2°10°17°25°JanFebMarAprMayJunJulAugSepOctNovDec
Daytime high Overnight low
Hottest year on record
2006
+2.7°C vs. 1951–1980
Coldest year on record
1813
-2.3°C vs. 1951–1980

These figures reflect annual averages, not single-day records. Daily observations are outside this dataset's precision.

Is Jena getting hotter?

Since 1900, Jena's average temperature has risen by +2.2°C. Compared to the earliest station records that begin in 1750, warming totals +2.3°C.

7.7°8.4°9.1°9.8°10.5°1951–1980 baseline190019251950197520002025

20-year smoothed annual temperature reconstructed from station anomalies. Dashed line: 1951–1980 baseline.

Best time to visit
May to September

Daytime highs sit within a comfortable 15°C to 26°C range.

FAQ

What is the average temperature in Jena?

Jena's average annual daytime high is 12.6°C, based on the 1951 to 1980 baseline period. The warmest month is July, with highs averaging 22.5°C, and the coldest is January, with lows averaging -3.5°C.

What is the warmest month in Jena?

July is the warmest month in Jena, with typical daytime highs of 22.5°C.

What is the hottest year on record for Jena?

2006 is the hottest year on record for Jena, running +2.7°C above the 1951 to 1980 baseline.

Is Jena getting hotter?

Yes. Since 1900, Jena has warmed by roughly +2.2°C.

When is the best time to visit Jena?

May to September typically offers the most comfortable daytime highs, in the 15°C to 26°C range.

Nearby cities

Baseline period 1951 to 1980. Monthly averages are the mean of station observations weighted by proximity. Warming trend is the 20-year smoothed anomaly against that baseline.