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Germany · 1991–2020

Best time to visit
Mannheim.

June leads for comfortable weather in Mannheim: typically 24.5°C by day, 12.7°C at night, with 64 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high24.5°C

Typical low12.7°C

Rain in June64 mm

Comfort

June

June · August · July

84climate match

Beach

August

August · July · June

63climate match

Outdoors

September

September · May · April

85climate match

The weakest month is January, scoring 5 against June’s 84 — days reach only 5.3°C, 19° 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

55.3° / -0.7°

Feb

117.3° / -0.5°

Mar

3112.2° / 2.1°

Apr

5517.2° / 5.1°

May

6921° / 9.2°

Jun

8424.5° / 12.7°

Jul

7926.7° / 14.6°

Aug

8126.5° / 14.4°

Sep

7721.6° / 10.6°

Oct

4915.5° / 6.7°

Nov

219.3° / 2.8°

Dec

55.9° / 0.4°

Monthly climate evidence for Mannheim — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	5.3°C	-0.7°C	42 mm	9.6	8 h 35	5	Strong coverage
February	7.3°C	-0.5°C	41 mm	8.4	10 h 02	11	Strong coverage
March	12.2°C	2.1°C	42 mm	9.3	11 h 43	31	Strong coverage
April	17.2°C	5.1°C	40 mm	8	13 h 39	55	Strong coverage
May	21°C	9.2°C	68 mm	10.1	15 h 19	69	Strong coverage
June	24.5°C	12.7°C	64 mm	9.4	16 h 15	84	Strong coverage
July	26.7°C	14.6°C	71 mm	10.2	15 h 53	79	Strong coverage
August	26.5°C	14.4°C	62 mm	9.3	14 h 25	81	Strong coverage
September	21.6°C	10.6°C	50 mm	8.1	12 h 32	77	Strong coverage
October	15.5°C	6.7°C	53 mm	9.3	10 h 40	49	Strong coverage
November	9.3°C	2.8°C	53 mm	10.2	9 h 01	21	Strong coverage
December	5.9°C	0.4°C	55 mm	11	8 h 10	5	Strong coverage

What has changed

Mannheim runs +2.1°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

+2.2

Feb

+2.1

Mar

+2.5

Apr

+2.3

May

+1.4

Jun

+2.8

Jul

+2.4

Aug

+2.5

Sep

+1.3

Oct

+1.4

Nov

+1.4

Dec

+2.4

June daytime highs, 2011–2025. Last recorded: 27.6°C.

Records at COLEMAN, 1936–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	16.9°C25 Jan 2025	-18.7°C14 Jan 1982	26 mm14 Jan 1948	117 mm1965 · driest 3 mm in 1996	83
February	20.2°C24 Feb 1990	-21.1°C21 Feb 1956	26 mm14 Feb 1990	106 mm2002 · driest 1 mm in 1959	83
March	26.1°C28 Mar 1989	-13.6°C1 Mar 2005	33 mm24 Mar 1957	131 mm1988 · driest 6 mm in 1950	83
April	32.0°C28 Apr 2012	-6.4°C13 Apr 1986	47 mm29 Apr 1995	113 mm1989 · driest 1 mm in 2007	83
May	33.2°C29 May 2017	-1.2°C3 May 1960	52 mm29 May 2016	191 mm1978 · driest 9 mm in 1936	83
June	40.0°C27 Jun 2026	3.0°C2 Jun 1975	47 mm3 Jun 1992	148 mm1961 · driest 9 mm in 2023	83
July	39.5°C25 Jul 2019	4.7°C1 Jul 1984	103 mm21 Jul 1972	183 mm1980 · driest 1 mm in 1949	82
August	39.8°C7 Aug 2015	4.4°C25 Aug 1980	63 mm11 Aug 1958	186 mm2006 · driest 4 mm in 1976	82
September	34.3°C6 Sep 1949	1.6°C30 Sep 1972	51 mm24 Sep 2025	146 mm2022 · driest 2 mm in 1959	82
October	28.5°C4 Oct 1966	-5.5°C29 Oct 2012	57 mm6 Oct 1982	142 mm1982 · driest 5 mm in 1969	82
November	22.6°C1 Nov 1968	-8.7°C26 Nov 1989	37 mm30 Nov 1952	122 mm1952 · driest 2 mm in 2011	82
December	18.6°C31 Dec 2022	-18.3°C26 Dec 2010	49 mm28 Dec 1947	116 mm1947 · driest 4 mm in 1963	82

Typical days per month at COLEMAN, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	16	<1
February	0	0	15	<1
March	0	0	9	<1
April	2	0	3	<1
May	7	<1	<1	2
June	14	4	0	2
July	19	8	0	2
August	19	7	0	2
September	7	1	0	1
October	<1	0	2	1
November	0	0	7	1
December	0	0	14	1

The best month has moved. On the 1961–1990 numbers the strongest month here was August (scoring 92); on 2011–2025 it is June (87). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in COLEMAN’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%	32%	2%	40%	1.5–7.8°C
February	<1%	29%	3%	36%	3.2–10.2°C
March	4%	28%	3%	35%	8.5–14.5°C
April	21%	29%	3%	36%	13.2–18.8°C
May	40%	33%	6%	44%	17.6–23.0°C
June	55%	34%	7%	45%	21.5–26.6°C
July	64%	33%	7%	42%	22.7–28.5°C
August	66%	30%	6%	36%	22.7–28.1°C
September	48%	27%	5%	33%	18.8–24.5°C
October	11%	28%	4%	36%	13.1–17.5°C
November	<1%	32%	4%	41%	6.9–11.0°C
December	0%	33%	3%	44%	2.6–7.6°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.

1936Each stripe is one year’s mean temperature against the 82-year average. Warmest: 2023. Coolest: 1956.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2873891
NOAA station: GMW00034068 · COLEMAN
Station distance: 8.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 49.49°, 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 COLEMAN is what differs

Ludwigshafen am Rhein→Weinheim→Viernheim→Lampertheim→Gartenstadt→Schriesheim→

Or put two places side by side: Mannheim vs Ludwigshafen am Rhein

Best time to visitMannheim.

June

August

September

The whole year,without the guesswork.

Mannheim runs +2.1°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Mannheim.

The whole year,
without the guesswork.

Mannheim runs +2.1°C
on the 1961–1990 baseline.

Nearby, measured,
and named.