Switzerland · 1991–2020

Best time to visit
Muttenz.

June leads for comfortable weather in Muttenz: typically 23.8°C by day, 13.1°C at night, with 87 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high23.8°C

Typical low13.1°C

Rain in June87 mm

Comfort

June

June · August · July

82climate match

Beach

July

July · August · June

57climate match

Outdoors

September

September · May · April

84climate match

The weakest month is January, scoring 5 against June’s 82 — days reach only 5.1°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

55.1° / -0.4°

Feb

117.1° / -0.2°

Mar

3111.9° / 2.6°

Apr

4816.2° / 5.5°

May

6120° / 9.5°

Jun

8223.8° / 13.1°

Jul

8025.8° / 14.9°

Aug

8125.3° / 14.8°

Sep

7220.7° / 11°

Oct

4615.4° / 7.6°

Nov

209.2° / 3.2°

Dec

55.7° / 0.4°

Monthly climate evidence for Muttenz — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	5.1°C	-0.4°C	47 mm	9.1	8 h 50	5	Strong coverage
February	7.1°C	-0.2°C	45 mm	8.4	10 h 10	11	Strong coverage
March	11.9°C	2.6°C	49 mm	8.9	11 h 44	31	Strong coverage
April	16.2°C	5.5°C	64 mm	9.3	13 h 33	48	Strong coverage
May	20°C	9.5°C	96 mm	11.6	15 h 05	61	Strong coverage
June	23.8°C	13.1°C	87 mm	10.6	15 h 57	82	Strong coverage
July	25.8°C	14.9°C	89 mm	10.1	15 h 36	80	Strong coverage
August	25.3°C	14.8°C	88 mm	10.2	14 h 16	81	Strong coverage
September	20.7°C	11°C	70 mm	8.5	12 h 30	72	Strong coverage
October	15.4°C	7.6°C	74 mm	10.4	10 h 46	46	Strong coverage
November	9.2°C	3.2°C	65 mm	10	9 h 14	20	Strong coverage
December	5.7°C	0.4°C	65 mm	11	8 h 27	5	Strong coverage

What has changed

Muttenz 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

+2.2

Feb

+1.9

Mar

+2.5

Apr

+2.3

May

+1.2

Jun

+2.8

Jul

+1.8

Aug

+2.3

Sep

+1.0

Oct

+1.2

Nov

+1.3

Dec

+2.3

June daytime highs, 2011–2025. Last recorded: 27.4°C.

Records at BASEL BINNINGEN, 1901–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	19.0°C10 Jan 1991	-24.1°C22 Jan 1942	49 mm27 Jan 1979	126 mm2004 · driest 6 mm in 1964	126
February	22.0°C23 Feb 1903	-23.8°C12 Feb 1932	35 mm6 Feb 1910	153 mm1970 · driest 2 mm in 1921	126
March	25.2°C30 Mar 1989	-14.8°C6 Mar 1971	54 mm4 Mar 2006	189 mm2001 · driest 5 mm in 1948	126
April	30.5°C17 Apr 1934	-6.3°C3 Apr 1952	49 mm1 Apr 1952	179 mm1922 · driest 2 mm in 2007	126
May	33.5°C17 May 1945	-2.7°C11 May 1953	68 mm18 May 1994	182 mm1939 · driest 12 mm in 1934	126
June	38.6°C27 Jun 2026	1.1°C3 Jun 1962	54 mm22 Jun 1963	213 mm1946 · driest 7 mm in 2026	126
July	39.0°C2 Jul 1952	5.1°C31 Jul 1935	85 mm26 Jul 1991	211 mm1956 · driest 6 mm in 2020	126
August	38.7°C21 Aug 1943	3.6°C25 Aug 1940	76 mm8 Aug 2007	204 mm1954 · driest 12 mm in 1991	125
September	35.0°C6 Sep 1949	-1.3°C25 Sep 1931	71 mm13 Sep 2008	208 mm1940 · driest 6 mm in 1959	125
October	29.6°C3 Oct 1985	-5.5°C23 Oct 1908	44 mm13 Oct 1923	215 mm1939 · driest 2 mm in 1969	125
November	22.5°C2 Nov 2020	-11.0°C28 Nov 1915	56 mm18 Nov 1906	220 mm1950 · driest 2 mm in 1920	125
December	20.6°C11 Dec 1915	-20.9°C23 Dec 1938	41 mm25 Dec 2013	150 mm1981 · driest 3 mm in 2016	125

Typical days per month at BASEL BINNINGEN, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	16	1
February	0	0	14	1
March	0	0	8	1
April	1	0	2	2
May	5	<1	0	3
June	13	3	0	3
July	18	5	0	3
August	16	5	0	3
September	5	<1	0	2
October	<1	0	<1	2
November	0	0	6	2
December	0	0	15	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 (87). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in BASEL BINNINGEN’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%	31%	3%	39%	0.9–7.3°C
February	<1%	31%	3%	41%	2.7–10.2°C
March	3%	30%	4%	39%	7.8–14.1°C
April	17%	35%	6%	47%	12.5–18.5°C
May	36%	38%	8%	52%	16.9–22.1°C
June	51%	37%	10%	50%	20.5–26.2°C
July	62%	33%	9%	43%	22.6–28.4°C
August	60%	34%	10%	44%	22.1–27.3°C
September	42%	30%	8%	38%	17.9–23.1°C
October	11%	30%	6%	38%	12.4–17.5°C
November	<1%	33%	5%	42%	6.2–11.1°C
December	0%	33%	4%	43%	2.5–7.6°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.

1901Each stripe is one year’s mean temperature against the 125-year average. Warmest: 2023. Coolest: 1956.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2659522
NOAA station: SZ000001940 · BASEL BINNINGEN
Station distance: 4.8 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 47.52°, 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 BASEL BINNINGEN is what differs

Basel→Riehen→Reinach→Allschwil→Solothurn→Burgdorf→

Or put two places side by side: Muttenz vs Basel

Best time to visitMuttenz.

June

July

September

The whole year,without the guesswork.

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

Nearby, measured,and named.

Best time to visit
Muttenz.

The whole year,
without the guesswork.

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

Nearby, measured,
and named.