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Sweden · 1991–2020

Best time to visit
Strömstad.

July leads for comfortable weather in Strömstad: typically 20.5°C by day, 14.8°C at night, with 60 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly

Typical high20.5°C

Typical low14.8°C

Rain in July60 mm

Comfort

July

July · August · June

80climate match

Beach

July

July · August · June

48climate match

Outdoors

July

July · June · August

80climate match

The weakest month is January, scoring 5 against July’s 80 — days reach only 2.4°C, 22° 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

52.4° / -1.3°

Feb

52° / -1.8°

Mar

54.6° / 0°

Apr

279.5° / 3.6°

May

5114.7° / 8.3°

Jun

6718.2° / 12.2°

Jul

8020.5° / 14.8°

Aug

7520.1° / 14.5°

Sep

5616.1° / 11.2°

Oct

2910.8° / 6.9°

Nov

96.6° / 3.2°

Dec

53.8° / 0.1°

Monthly climate evidence for Strömstad — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 8 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	2.4°C	-1.3°C	53 mm	10	3.8°C	6 h 55	5	Strong coverage
February	2°C	-1.8°C	44 mm	8.4	2.7°C	9 h 08	5	Strong coverage
March	4.6°C	0°C	40 mm	7	3.1°C	11 h 34	5	Strong coverage
April	9.5°C	3.6°C	41 mm	7.4	6.1°C	14 h 20	27	Strong coverage
May	14.7°C	8.3°C	44 mm	8.3	10.8°C	16 h 51	51	Strong coverage
June	18.2°C	12.2°C	64 mm	8.7	14.8°C	18 h 26	67	Strong coverage
July	20.5°C	14.8°C	60 mm	7.8	17.5°C	17 h 46	80	Strong coverage
August	20.1°C	14.5°C	76 mm	9.6	18.1°C	15 h 28	75	Strong coverage
September	16.1°C	11.2°C	72 mm	9.7	15.4°C	12 h 44	56	Strong coverage
October	10.8°C	6.9°C	78 mm	11.1	11.8°C	10 h 04	29	Strong coverage
November	6.6°C	3.2°C	72 mm	11	8.7°C	7 h 36	9	Strong coverage
December	3.8°C	0.1°C	64 mm	11.1	5.8°C	6 h 14	5	Strong coverage

What has changed

Strömstad runs +1.0°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

+1.9

Feb

+2.0

Mar

+1.9

Apr

+1.5

May

+0.3

Jun

-0.2

Jul

+0.3

Aug

-0.2

Sep

+1.1

Oct

+0.6

Nov

+1.1

Dec

+1.6

July daytime highs, 2011–2025. Last recorded: 23.6°C.

Records at NORDKOSTER A, 1967–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	10.1°C5 Jan 1973	-22.3°C10 Jan 1987	32 mm13 Jan 1984	157 mm1988 · driest 6 mm in 2010	59
February	10.0°C26 Feb 2019	-20.5°C10 Feb 1985	29 mm10 Feb 1980	123 mm1990 · driest 3 mm in 1986	59
March	15.5°C27 Mar 2012	-15.2°C2 Mar 1987	27 mm22 Mar 1986	131 mm1999 · driest 1 mm in 2013	59
April	24.0°C24 Apr 1995	-5.3°C10 Apr 1985	37 mm20 Apr 1988	101 mm1985 · driest 0 mm in 1974	59
May	29.7°C28 May 1988	-1.7°C3 May 1981	44 mm29 May 1988	96 mm1983 · driest 1 mm in 1991	59
June	29.9°C28 Jun 2009	2.7°C12 Jun 1981	40 mm22 Jun 2007	177 mm1999 · driest 5 mm in 1975	59
July	30.3°C14 Jul 1994	5.6°C11 Jul 1968	40 mm12 Jul 1984	196 mm1988 · driest 4 mm in 1994	58
August	30.5°C1 Aug 1994	7.0°C30 Aug 1981	59 mm10 Aug 2007	140 mm1986 · driest 11 mm in 1995	58
September	26.4°C5 Sep 2024	1.2°C26 Sep 1968	50 mm4 Sep 2011	195 mm1974 · driest 19 mm in 1986	59
October	18.6°C11 Oct 2018	-6.1°C31 Oct 1980	69 mm14 Oct 1976	229 mm1967 · driest 11 mm in 2015	59
November	14.1°C6 Nov 2006	-10.2°C30 Nov 2010	42 mm1 Nov 1991	146 mm1991 · driest 14 mm in 2011	59
December	10.8°C14 Dec 2006	-17.9°C31 Dec 1978	28 mm17 Dec 1989	142 mm1999 · driest 16 mm in 2021	59

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

How often, not how much — every day in NORDKOSTER A’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%	33%	4%	44%	-2.4–5.3°C
February	0%	29%	4%	35%	-2.6–5.0°C
March	0%	25%	4%	31%	1.8–6.7°C
April	<1%	24%	3%	28%	7.2–10.9°C
May	10%	26%	4%	32%	13.0–16.6°C
June	26%	27%	6%	34%	16.4–20.6°C
July	43%	25%	6%	30%	18.6–22.7°C
August	36%	29%	7%	36%	18.2–22.2°C
September	4%	33%	8%	46%	14.8–17.5°C
October	0%	36%	10%	47%	9.2–12.5°C
November	0%	38%	8%	49%	3.5–8.4°C
December	0%	34%	5%	43%	0.1–6.4°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.

1968Each stripe is one year’s mean temperature against the 58-year average. Warmest: 2020. Coolest: 1987.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2671224
NOAA station: SWE00138674 · NORDKOSTER A
Station distance: 10.8 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 27 usable years
Daylight: Calculated from latitude 58.94°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 8 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
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 NORDKOSTER A is what differs

Grebbestad→Tanumshede→Fjällbacka→Skee→Skjærhalden→Ödsmål→

Or put two places side by side: Strömstad vs Grebbestad

Best time to visitStrömstad.

July

July

July

The whole year,without the guesswork.

Strömstad runs +1.0°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Strömstad.

The whole year,
without the guesswork.

Strömstad runs +1.0°C
on the 1961–1990 baseline.

Nearby, measured,
and named.