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Germany · 1991–2020

Best time to visit
Bad Mergentheim.

June leads for comfortable weather in Bad Mergentheim: typically 23.9°C by day, 11°C at night, with 64 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high23.9°C

Typical low11°C

Rain in June64 mm

Comfort

June

June · August · July

83climate match

Beach

August

August · July · June

58climate match

Outdoors

September

September · May · June

86climate match

The weakest month is January, scoring 5 against June’s 83 — days reach only 4.2°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

54.2° / -2°

Feb

56.1° / -1.9°

Mar

2111° / 0.6°

Apr

4816.4° / 3.2°

May

6420.4° / 7.4°

Jun

8323.9° / 11°

Jul

7726.1° / 12.9°

Aug

8126° / 12.6°

Sep

7221° / 8.9°

Oct

4314.9° / 5.4°

Nov

158.5° / 1.9°

Dec

54.8° / -0.8°

Monthly climate evidence for Bad Mergentheim — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	4.2°C	-2°C	60 mm	11.2	8 h 35	5	Strong coverage
February	6.1°C	-1.9°C	54 mm	10.2	10 h 02	5	Strong coverage
March	11°C	0.6°C	58 mm	10.4	11 h 43	21	Strong coverage
April	16.4°C	3.2°C	43 mm	8.3	13 h 39	48	Strong coverage
May	20.4°C	7.4°C	69 mm	9.6	15 h 19	64	Strong coverage
June	23.9°C	11°C	64 mm	9.5	16 h 15	83	Strong coverage
July	26.1°C	12.9°C	75 mm	10.5	15 h 53	77	Strong coverage
August	26°C	12.6°C	58 mm	8.6	14 h 25	81	Strong coverage
September	21°C	8.9°C	54 mm	8.1	12 h 32	72	Strong coverage
October	14.9°C	5.4°C	60 mm	9.7	10 h 40	43	Strong coverage
November	8.5°C	1.9°C	58 mm	10.7	9 h 01	15	Strong coverage
December	4.8°C	-0.8°C	72 mm	12.4	8 h 10	5	Strong coverage

What has changed

Bad Mergentheim runs +2.6°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

+2.5

Feb

+2.3

Mar

+2.9

Apr

+3.4

May

+2.1

Jun

+3.7

Jul

+3.1

Aug

+3.5

Sep

+2.0

Oct

+1.3

Nov

+1.7

Dec

+2.8

June daytime highs, 2011–2025. Last recorded: 26.8°C.

Records at BAD-NEUNKIRCHEN MERGENTHEIM, 1947–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	16.1°C10 Jan 1991	-25.7°C14 Jan 1982	43 mm25 Jan 1995	147 mm1995 · driest 8 mm in 1996	77
February	21.3°C24 Feb 2021	-24.2°C5 Feb 1963	42 mm6 Feb 1984	173 mm1970 · driest 7 mm in 1959	77
March	25.8°C31 Mar 2021	-21.6°C2 Mar 1963	42 mm31 Mar 1988	195 mm1988 · driest 2 mm in 1953	77
April	32.9°C28 Apr 2012	-8.8°C8 Apr 2003	38 mm10 Apr 1973	143 mm1983 · driest 0 mm in 2007	78
May	33.3°C28 May 2005	-4.5°C3 May 1960	66 mm29 May 2016	144 mm1983 · driest 8 mm in 1990	78
June	39.5°C27 Jun 2026	-1.5°C5 Jun 1962	57 mm9 Jun 1980	173 mm1992 · driest 12 mm in 1949	78
July	40.3°C20 Jul 2022	2.0°C7 Jul 1964	68 mm24 Jul 1989	154 mm1956 · driest 3 mm in 1952	77
August	40.2°C7 Aug 2015	2.3°C30 Aug 1959	59 mm2 Aug 1968	219 mm1968 · driest 11 mm in 1990	77
September	34.8°C13 Sep 1947	-1.5°C24 Sep 1964	49 mm24 Sep 2025	149 mm1968 · driest 5 mm in 1959	77
October	29.0°C4 Oct 1985	-7.0°C29 Oct 1997	55 mm28 Oct 1998	199 mm1998 · driest 2 mm in 1969	76
November	21.3°C2 Nov 2020	-14.0°C25 Nov 1962	35 mm30 Nov 1952	148 mm1952 · driest 1 mm in 2011	76
December	16.2°C5 Dec 1961	-23.0°C23 Dec 1962	63 mm20 Dec 1993	205 mm1993 · driest 1 mm in 1963	76

Typical days per month at BAD-NEUNKIRCHEN MERGENTHEIM, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	18	1
February	0	0	18	1
March	0	0	14	2
April	2	0	6	1
May	6	<1	<1	2
June	13	3	0	2
July	18	7	0	2
August	17	6	0	2
September	7	<1	<1	1
October	<1	0	4	1
November	0	0	9	2
December	0	0	17	2

The best month has moved. On the 1961–1990 numbers the strongest month here was July (scoring 89); on 2011–2025 it is June (85). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in BAD-NEUNKIRCHEN MERGENTHEIM’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%	35%	4%	44%	-0.3–6.8°C
February	<1%	32%	4%	42%	1.8–9.3°C
March	3%	30%	4%	37%	7.1–13.3°C
April	18%	30%	4%	38%	12.2–17.7°C
May	36%	32%	5%	41%	16.9–21.9°C
June	52%	34%	7%	44%	20.0–25.8°C
July	61%	33%	7%	42%	21.8–28.1°C
August	63%	31%	7%	38%	22.0–27.4°C
September	42%	28%	5%	34%	17.7–24.0°C
October	10%	28%	4%	35%	12.6–16.9°C
November	<1%	33%	4%	43%	6.1–10.1°C
December	0%	36%	4%	46%	1.5–6.6°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.

1947Each stripe is one year’s mean temperature against the 75-year average. Warmest: 2018. Coolest: 1963.2021

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2953402
NOAA station: GME00125974 · BAD-NEUNKIRCHEN MERGENTHEIM
Station distance: 1.8 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 BAD-NEUNKIRCHEN MERGENTHEIM is what differs

Weikersheim→Boxberg→Igersheim→Niederstetten→Assamstadt→Röttingen→

Or put two places side by side: Bad Mergentheim vs Weikersheim

Best time to visitBad Mergentheim.