Germany · 1991–2020

Best time to visit
Gießen.

August leads for comfortable weather in Gießen: typically 24.7°C by day, 12.8°C at night, with 62 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high24.7°C

Typical low12.8°C

Rain in August62 mm

Comfort

August

August · July · June

85climate match

Beach

August

August · July · June

54climate match

Outdoors

September

September · May · June

90climate match

The weakest month is January, scoring 5 against August’s 85 — days reach only 4°C, 20° below the 24°C the score treats as ideal.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

54° / -1.2°

Feb

55.6° / -1.1°

Mar

2410.2° / 1.2°

Apr

4715.4° / 4.2°

May

6319.3° / 8°

Jun

8022.7° / 11.2°

Jul

8225° / 13.2°

Aug

8524.7° / 12.8°

Sep

6919.8° / 9.3°

Oct

4313.9° / 5.8°

Nov

178° / 2.5°

Dec

54.5° / -0.2°

Monthly climate evidence for Gießen — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	4°C	-1.2°C	49 mm	10	8 h 26	5	Strong coverage
February	5.6°C	-1.1°C	38 mm	8.7	9 h 57	5	Strong coverage
March	10.2°C	1.2°C	42 mm	8.7	11 h 42	24	Strong coverage
April	15.4°C	4.2°C	38 mm	7.9	13 h 43	47	Strong coverage
May	19.3°C	8°C	60 mm	9.2	15 h 27	63	Strong coverage
June	22.7°C	11.2°C	60 mm	8.8	16 h 26	80	Strong coverage
July	25°C	13.2°C	73 mm	10.2	16 h 03	82	Strong coverage
August	24.7°C	12.8°C	62 mm	8.7	14 h 31	85	Strong coverage
September	19.8°C	9.3°C	50 mm	8.2	12 h 33	69	Strong coverage
October	13.9°C	5.8°C	50 mm	9.1	10 h 37	43	Strong coverage
November	8°C	2.5°C	49 mm	9.6	8 h 53	17	Strong coverage
December	4.5°C	-0.2°C	56 mm	11.1	8 h 00	5	Strong coverage

What has changed

Gießen runs +1.9°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan

+2.1

Feb

+1.8

Mar

+2.3

Apr

+2.0

May

+1.3

Jun

+2.4

Jul

+2.3

Aug

+2.3

Sep

+1.4

Oct

+1.1

Nov

+1.4

Dec

+2.3

August daytime highs, 2011–2025. Last recorded: 25.7°C.

Records at GIESSEN/WETTENBERG, 1939–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	15.5°C5 Jan 1999	-26.6°C19 Jan 1940	26 mm11 Jan 1993	128 mm1948 · driest 4 mm in 1996	85
February	19.1°C26 Feb 2019	-20.6°C16 Feb 1956	42 mm6 Feb 1984	107 mm2020 · driest 3 mm in 1959	85
March	24.4°C30 Mar 1968	-14.8°C3 Mar 1963	28 mm30 Mar 2006	114 mm1988 · driest 4 mm in 1953	85
April	28.6°C22 Apr 1968	-6.6°C8 Apr 2003	37 mm21 Apr 1989	97 mm1998 · driest 0 mm in 2007	85
May	32.5°C28 May 2005	-2.4°C13 May 1941	63 mm29 May 2018	246 mm1984 · driest 6 mm in 1991	85
June	39.2°C27 Jun 2026	1.7°C1 Jun 1975	47 mm27 Jun 1994	127 mm1961 · driest 14 mm in 2023	85
July	38.4°C20 Jul 2022	4.4°C7 Jul 1964	92 mm28 Jul 2006	154 mm1966 · driest 12 mm in 1971	84
August	37.9°C12 Aug 2003	3.8°C25 Aug 2025	76 mm10 Aug 1981	150 mm1963 · driest 4 mm in 1991	84
September	33.2°C13 Sep 1947	-1.5°C24 Sep 1948	37 mm12 Sep 2008	138 mm1957 · driest 2 mm in 1959	84
October	26.6°C4 Oct 1966	-5.8°C31 Oct 1950	37 mm5 Oct 2013	153 mm1998 · driest 8 mm in 2007	84
November	21.3°C2 Nov 2020	-12.1°C16 Nov 1965	53 mm3 Nov 1977	126 mm1977 · driest 1 mm in 2011	84
December	16.9°C31 Dec 2022	-20.9°C30 Dec 1950	38 mm27 Dec 1947	149 mm1993 · driest 6 mm in 1963	84

Typical days per month at GIESSEN/WETTENBERG, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	18	1
February	0	0	17	<1
March	0	0	12	<1
April	<1	0	4	<1
May	4	<1	<1	2
June	9	2	0	2
July	16	5	0	2
August	15	4	0	2
September	4	<1	0	2
October	<1	0	2	1
November	0	0	7	1
December	0	0	16	1

The best month has moved. On the 1961–1990 numbers the strongest month here was July (scoring 90); on 2011–2025 it is June (90). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in GIESSEN/WETTENBERG’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	0%	34%	3%	43%	-0.8–6.1°C
February	0%	29%	2%	36%	1.9–8.4°C
March	1%	29%	3%	36%	6.2–12.6°C
April	13%	28%	3%	33%	11.7–17.0°C
May	31%	31%	5%	39%	16.0–21.4°C
June	50%	30%	6%	37%	19.8–24.8°C
July	59%	31%	6%	39%	21.0–27.2°C
August	60%	29%	6%	34%	21.1–26.2°C
September	36%	28%	5%	34%	17.3–22.5°C
October	6%	28%	4%	37%	11.7–15.9°C
November	0%	33%	4%	43%	5.6–9.4°C
December	0%	35%	4%	48%	0.9–6.5°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1939Each stripe is one year’s mean temperature against the 84-year average. Warmest: 2024. Coolest: 1940.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2920512
NOAA station: GME00120982 · GIESSEN/WETTENBERG
Station distance: 2.3 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 50.59°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from GIESSEN/WETTENBERG is what differs

Wetzlar→Aßlar→Lich→Langgöns→Reiskirchen→Wieseck→

Or put two places side by side: Gießen vs Wetzlar

Best time to visitGießen.

August

August

September

The whole year,without the guesswork.

Gießen runs +1.9°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Gießen.

The whole year,
without the guesswork.

Gießen runs +1.9°C
on the 1961–1990 baseline.

Nearby, measured,
and named.