Switzerland · 1991–2020

Best time to visit
Zofingen.

June leads for comfortable weather in Zofingen: typically 24.7°C by day, 13.2°C at night, with 91 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high24.7°C

Typical low13.2°C

Rain in June91 mm

Comfort

June

June · August · July

80climate match

Beach

July

July · August · June

56climate match

Outdoors

September

September · May · April

78climate match

The weakest month is January, scoring 5 against June’s 80 — 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° / -0.4°

Feb

97.5° / -0.3°

Mar

2812.4° / 2.5°

Apr

4817° / 5.5°

May

6320.9° / 9.6°

Jun

8024.7° / 13.2°

Jul

7426.7° / 14.9°

Aug

7626.3° / 14.7°

Sep

7321.6° / 11.1°

Oct

4616° / 7.7°

Nov

179.4° / 3.4°

Dec

55.8° / 0.6°

Monthly climate evidence for Zofingen — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	5.3°C	-0.4°C	62 mm	10.3	8 h 52	5	Strong coverage
February	7.5°C	-0.3°C	63 mm	9.3	10 h 11	9	Strong coverage
March	12.4°C	2.5°C	67 mm	10.3	11 h 45	28	Strong coverage
April	17°C	5.5°C	71 mm	10.1	13 h 32	48	Strong coverage
May	20.9°C	9.6°C	99 mm	12.2	15 h 04	63	Strong coverage
June	24.7°C	13.2°C	91 mm	10.6	15 h 55	80	Strong coverage
July	26.7°C	14.9°C	101 mm	11.1	15 h 34	74	Strong coverage
August	26.3°C	14.7°C	96 mm	11	14 h 15	76	Strong coverage
September	21.6°C	11.1°C	79 mm	9.2	12 h 30	73	Strong coverage
October	16°C	7.7°C	86 mm	11.2	10 h 47	46	Strong coverage
November	9.4°C	3.4°C	85 mm	11	9 h 15	17	Strong coverage
December	5.8°C	0.6°C	95 mm	12.5	8 h 29	5	Strong coverage

What has changed

Zofingen 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

+2.4

Feb

+2.5

Mar

+3.0

Apr

+2.8

May

+1.6

Jun

+3.3

Jul

+1.9

Aug

+2.8

Sep

+1.7

Oct

+1.9

Nov

+1.4

Dec

+2.3

June daytime highs, 2011–2025. Last recorded: 28.0°C.

Records at RHEINFELDEN, 1953–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	18.8°C10 Jan 1991	-22.9°C12 Jan 1987	55 mm1 Jan 1962	174 mm2021 · driest 10 mm in 1964	71
February	21.8°C25 Feb 1990	-20.6°C13 Feb 1956	60 mm19 Feb 1999	195 mm1999 · driest 6 mm in 1959	71
March	25.6°C31 Mar 2021	-14.0°C6 Mar 1971	50 mm4 Mar 2006	245 mm2001 · driest 16 mm in 2014	71
April	30.9°C28 Apr 2012	-5.4°C13 Apr 1986	45 mm3 Apr 1992	182 mm1986 · driest 2 mm in 2007	71
May	33.6°C25 May 2009	-2.0°C1 May 1976	60 mm25 May 1981	192 mm1981 · driest 33 mm in 1959	71
June	39.3°C27 Jun 2026	2.0°C3 Jun 1962	56 mm21 Jun 1997	203 mm1987 · driest 18 mm in 2003	71
July	38.6°C27 Jul 2013	5.5°C18 Jul 1970	72 mm10 Jul 1981	269 mm2021 · driest 11 mm in 2020	71
August	39.2°C13 Aug 2003	5.4°C29 Aug 1979	68 mm8 Aug 2007	183 mm1956 · driest 18 mm in 1991	71
September	33.6°C3 Sep 1962	0.9°C17 Sep 1971	59 mm21 Sep 1968	215 mm1984 · driest 2 mm in 1959	72
October	30.1°C13 Oct 2023	-5.0°C31 Oct 1997	48 mm30 Oct 1981	226 mm1981 · driest 1 mm in 1969	72
November	22.0°C3 Nov 1970	-9.0°C30 Nov 1973	58 mm16 Nov 1995	229 mm2002 · driest 2 mm in 2011	72
December	20.2°C15 Dec 1989	-18.0°C3 Dec 1973	75 mm21 Dec 1997	188 mm1981 · driest 4 mm in 2016	72

Typical days per month at RHEINFELDEN, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	17	2
February	0	0	14	2
March	0	0	8	2
April	2	0	2	2
May	8	1	<1	3
June	15	5	0	3
July	20	8	0	4
August	19	7	0	4
September	7	<1	0	3
October	<1	0	<1	3
November	0	0	6	3
December	0	0	14	3

The best month has moved. On the 1961–1990 numbers the strongest month here was July (scoring 86); on 2011–2025 it is September (84). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in RHEINFELDEN’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%	37%	7%	47%	1.5–7.3°C
February	<1%	35%	7%	47%	3.6–10.9°C
March	5%	35%	6%	47%	8.3–15.0°C
April	21%	36%	7%	49%	12.8–18.7°C
May	37%	40%	11%	56%	17.3–22.8°C
June	53%	38%	11%	52%	21.2–26.8°C
July	61%	36%	12%	47%	23.5–28.7°C
August	59%	37%	12%	49%	22.6–27.9°C
September	49%	31%	9%	40%	19.0–23.8°C
October	15%	32%	9%	41%	13.4–18.3°C
November	<1%	36%	9%	47%	6.6–10.9°C
December	0%	38%	9%	53%	2.7–7.8°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.

1954Each stripe is one year’s mean temperature against the 70-year average. Warmest: 2023. Coolest: 1956.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2657915
NOAA station: GME00127786 · RHEINFELDEN
Station distance: 32.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 47.29°, 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 RHEINFELDEN is what differs

Rheinfelden→Aarau→Olten→Bad Säckingen→Langenthal→Liestal→

Or put two places side by side: Zofingen vs Rheinfelden

Best time to visitZofingen.