ClimateAverages

Giessen Climate

Hesse, Germany · 440 weather stations within 200 km · records 1750 to 2025

Average annual daytime high
12.8°C
Warmest month · July
22.5°C
Typical daytime high
Coldest month · January
-2.6°C
Typical overnight low

Giessen has an average annual daytime high of 12.8°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 -2.6°C.

Month by month averages

MonthAvg highAvg low
January2.4°C-2.6°CColdest
February4.2°C-2.2°C
March8.6°C0.1°C
April13.2°C2.9°C
May17.7°C6.7°C
June21.0°C10.2°C
July22.5°C11.8°CWarmest
August22.1°C11.5°C
September18.7°C8.8°C
October13.0°C4.9°C
November6.8°C1.6°C
December3.5°C-1.3°C

Temperature range across the year

-5°3°10°17°24°JanFebMarAprMayJunJulAugSepOctNovDec
Daytime high Overnight low
Hottest year on record
2006
+2.5°C vs. 1951–1980
Coldest year on record
1829
-2.2°C vs. 1951–1980

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

Is Giessen getting hotter?

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

8.0°8.7°9.4°10.0°10.7°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 Giessen?

Giessen's average annual daytime high is 12.8°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 -2.6°C.

What is the warmest month in Giessen?

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

What is the hottest year on record for Giessen?

2006 is the hottest year on record for Giessen, running +2.5°C above the 1951 to 1980 baseline.

Is Giessen getting hotter?

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

When is the best time to visit Giessen?

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.