Germany · 1991–2020

Best time to visit
Merchweiler.

August leads for comfortable weather in Merchweiler: typically 24.8°C by day, 11.9°C at night, with 69 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high24.8°C

Typical low11.9°C

Rain in August69 mm

Comfort

August

August · July · June

81climate match

Beach

July

July · August · June

52climate match

Outdoors

September

September · May · June

84climate match

The weakest month is January, scoring 5 against August’s 81 — days reach only 4.9°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

54.9° / -0.9°

Feb

56.6° / -1.1°

Mar

1911° / 0.9°

Apr

4515.9° / 3.3°

May

6019.8° / 7.3°

Jun

7923.1° / 10.6°

Jul

8025.3° / 12.6°

Aug

8124.8° / 11.9°

Sep

6820.5° / 8.6°

Oct

4315° / 5.5°

Nov

148.9° / 2.5°

Dec

55.5° / 0.2°

Monthly climate evidence for Merchweiler — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	4.9°C	-0.9°C	84 mm	12.4	8 h 36	5	Strong coverage
February	6.6°C	-1.1°C	69 mm	11	10 h 02	5	Strong coverage
March	11°C	0.9°C	70 mm	11.5	11 h 43	19	Strong coverage
April	15.9°C	3.3°C	51 mm	8.3	13 h 39	45	Strong coverage
May	19.8°C	7.3°C	73 mm	10.4	15 h 18	60	Strong coverage
June	23.1°C	10.6°C	64 mm	9.7	16 h 14	79	Strong coverage
July	25.3°C	12.6°C	73 mm	9.7	15 h 52	80	Strong coverage
August	24.8°C	11.9°C	69 mm	9.5	14 h 25	81	Strong coverage
September	20.5°C	8.6°C	62 mm	9.2	12 h 32	68	Strong coverage
October	15°C	5.5°C	65 mm	10	10 h 41	43	Strong coverage
November	8.9°C	2.5°C	77 mm	11.6	9 h 02	14	Strong coverage
December	5.5°C	0.2°C	115 mm	14.8	8 h 12	5	Strong coverage

What has changed

Merchweiler runs +2.3°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

+2.2

Mar

+2.8

Apr

+3.0

May

+1.8

Jun

+3.2

Jul

+2.3

Aug

+2.5

Sep

+1.9

Oct

+2.0

Nov

+1.6

Dec

+2.1

August daytime highs, 2011–2025. Last recorded: 27.0°C.

Records at NEUNKIRCHEN-WELLESWEILER, 1970–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	15.2°C1 Jan 2023	-20.0°C1 Jan 1971	48 mm11 Jan 1993	229 mm1995 · driest 8 mm in 1996	53
February	21.3°C27 Feb 2019	-19.4°C7 Feb 2012	47 mm6 Feb 2022	188 mm2020 · driest 10 mm in 2023	53
March	25.7°C31 Mar 2021	-16.5°C1 Mar 2005	46 mm8 Mar 2023	159 mm2023 · driest 5 mm in 1993	54
April	28.7°C20 Apr 2018	-5.6°C1 Apr 2020	43 mm8 Apr 2022	139 mm1998 · driest 1 mm in 2007	53
May	33.2°C26 May 2026	-2.2°C4 May 2011	63 mm17 May 2024	210 mm2024 · driest 7 mm in 1991	54
June	40.1°C27 Jun 2026	0.0°C1 Jun 1975	44 mm13 Jun 1973	161 mm1997 · driest 5 mm in 2023	54
July	40.2°C25 Jul 2019	3.9°C1 Jul 1984	65 mm9 Jul 2017	191 mm2000 · driest 7 mm in 2022	53
August	38.1°C7 Aug 2015	3.0°C28 Aug 1978	52 mm9 Aug 1999	162 mm2006 · driest 11 mm in 1991	53
September	33.2°C15 Sep 2020	-1.5°C16 Sep 1971	46 mm13 Sep 2017	169 mm2022 · driest 19 mm in 1977	52
October	28.3°C3 Oct 1985	-7.6°C29 Oct 2012	45 mm3 Oct 2006	168 mm1981 · driest 11 mm in 2018	51
November	21.6°C2 Nov 2020	-13.8°C23 Nov 1998	50 mm18 Nov 1971	174 mm2023 · driest 5 mm in 2011	52
December	17.9°C16 Dec 1989	-19.5°C20 Dec 2009	51 mm20 Dec 1993	309 mm1993 · driest 11 mm in 2016	52

Typical days per month at NEUNKIRCHEN-WELLESWEILER, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	17	2
February	0	0	17	2
March	0	0	14	2
April	1	0	7	1
May	5	<1	<1	2
June	10	2	0	2
July	16	5	0	2
August	15	4	0	2
September	5	<1	<1	2
October	<1	0	3	2
November	0	0	9	2
December	0	0	15	4

The best month has moved. On the 1961–1990 numbers the strongest month here was July (scoring 90); on 2011–2025 it is June (86). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in NEUNKIRCHEN-WELLESWEILER’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%	42%	7%	56%	1.7–7.3°C
February	<1%	38%	7%	48%	2.8–9.8°C
March	3%	37%	6%	47%	7.7–13.9°C
April	17%	30%	4%	39%	12.2–18.5°C
May	35%	34%	7%	46%	16.3–21.8°C
June	50%	34%	7%	44%	20.0–26.0°C
July	63%	31%	8%	38%	21.6–27.9°C
August	63%	30%	7%	35%	21.9–27.4°C
September	40%	30%	6%	39%	17.7–23.1°C
October	10%	33%	7%	44%	12.5–17.6°C
November	<1%	39%	8%	53%	6.6–10.7°C
December	0%	43%	11%	58%	3.2–7.5°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.

1970Each stripe is one year’s mean temperature against the 49-year average. Warmest: 2023. Coolest: 1978.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2871832
NOAA station: GME00126586 · NEUNKIRCHEN-WELLESWEILER
Station distance: 13.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 25 usable years
Daylight: Calculated from latitude 49.35°, 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 NEUNKIRCHEN-WELLESWEILER is what differs

Neunkirchen→Bexbach→Schiffweiler→Spiesen-Elversberg→Ottweiler→Friedrichsthal→

Or put two places side by side: Merchweiler vs Neunkirchen

Best time to visitMerchweiler.