Iceland · 1991–2020

Best time to visit
Stykkishólmur.

July leads for comfortable weather in Stykkishólmur: typically 13.9°C by day, 8.4°C at night, with 55 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly

Typical high13.9°C

Typical low8.4°C

Rain in July55 mm

Comfort

July

July · August · June

44climate match

Beach

July

July · January · February

7climate match

Outdoors

July

July · June · August

64climate match

The weakest month is January, scoring 5 against July’s 44 — days reach only 2.7°C, 21° 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

52.7° / -2.2°

Feb

52.5° / -2.5°

Mar

53.1° / -1.9°

Apr

55.8° / 0.3°

May

188.9° / 3.2°

Jun

3512.2° / 6.4°

Jul

4413.9° / 8.4°

Aug

3613.4° / 8.3°

Sep

2110.7° / 6°

Oct

56.8° / 2.5°

Nov

54.1° / -0.3°

Dec

52.9° / -2°

Monthly climate evidence for Stykkishólmur — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 7 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	2.7°C	-2.2°C	98 mm	17.3	2.3°C	4 h 53	5	Strong coverage
February	2.5°C	-2.5°C	102 mm	16.7	2.1°C	8 h 13	5	Strong coverage
March	3.1°C	-1.9°C	90 mm	15.6	2.0°C	11 h 26	5	Strong coverage
April	5.8°C	0.3°C	61 mm	12.6	2.9°C	15 h 03	5	Strong coverage
May	8.9°C	3.2°C	54 mm	12.1	4.9°C	18 h 40	18	Strong coverage
June	12.2°C	6.4°C	53 mm	11.7	8.0°C	21 h 57	35	Good coverage
July	13.9°C	8.4°C	55 mm	11.9	9.7°C	20 h 20	44	Good coverage
August	13.4°C	8.3°C	77 mm	15	10.3°C	16 h 36	36	Good coverage
September	10.7°C	6°C	95 mm	15.2	9.1°C	12 h 56	21	Strong coverage
October	6.8°C	2.5°C	89 mm	16.5	7.1°C	9 h 28	5	Strong coverage
November	4.1°C	-0.3°C	86 mm	15.5	4.9°C	6 h	5	Strong coverage
December	2.9°C	-2°C	106 mm	17.3	3.4°C	3 h 37	5	Strong coverage

What has changed

Stykkishólmur runs +1.3°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

+1.5

Feb

+1.4

Mar

+1.7

Apr

+2.0

May

+1.2

Jun

+1.2

Jul

+1.2

Aug

+1.2

Sep

+1.6

Oct

+1.0

Nov

+1.5

Dec

+0.7

July daytime highs, 2011–2025. Last recorded: 14.9°C.

Records at STYKKISHOLMUR, 1949–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	10.9°C3 Jan 2019	-16.0°C30 Jan 1971	43 mm24 Jan 1992	212 mm1989 · driest 6 mm in 2026	78
February	11.7°C1 Feb 2025	-17.7°C7 Feb 1969	49 mm13 Feb 2023	220 mm1959 · driest 1 mm in 1977	78
March	12.2°C17 Mar 2006	-19.0°C9 Mar 1969	57 mm5 Mar 1974	197 mm1974 · driest 3 mm in 1962	78
April	16.4°C28 Apr 2007	-16.0°C1 Apr 1968	31 mm7 Apr 1969	110 mm2017 · driest 5 mm in 1950	78
May	20.5°C17 May 2025	-6.7°C5 May 1982	39 mm25 May 2024	113 mm2018 · driest 3 mm in 1958	78
June	22.0°C20 Jun 1949	-0.8°C1 Jun 1975	47 mm12 Jun 2006	96 mm2006 · driest 1 mm in 2012	78
July	21.0°C31 Jul 1980	2.0°C25 Jul 1963	33 mm18 Jul 2025	100 mm1977 · driest 5 mm in 2023	77
August	20.8°C27 Aug 2025	0.5°C26 Aug 2005	55 mm30 Aug 2013	143 mm1976 · driest 3 mm in 1956	77
September	18.5°C4 Sep 2010	-4.9°C19 Sep 2000	68 mm17 Sep 2008	204 mm2008 · driest 15 mm in 1957	77
October	15.7°C2 Oct 2002	-8.0°C30 Oct 1968	49 mm20 Oct 1965	204 mm1965 · driest 10 mm in 1968	77
November	13.3°C17 Nov 2018	-11.8°C18 Nov 2006	61 mm18 Nov 1958	281 mm1958 · driest 18 mm in 1995	77
December	13.4°C14 Dec 2001	-14.8°C18 Dec 1973	56 mm18 Dec 2007	171 mm2007 · driest 9 mm in 1952	77

Typical days per month at STYKKISHOLMUR, 1991–2020
Month	Frost nights	Heavy rain (10 mm+)
January	22	2
February	21	2
March	22	2
April	13	<1
May	4	<1
June	0	<1
July	0	<1
August	0	1
September	<1	2
October	7	2
November	16	2
December	22	2

How often, not how much — every day in STYKKISHOLMUR’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%	48%	6%	61%	-0.8–4.1°C
February	0%	49%	8%	61%	-0.7–4.5°C
March	0%	46%	6%	59%	0.1–4.8°C
April	0%	39%	3%	45%	2.9–7.3°C
May	0%	31%	2%	33%	6.8–10.0°C
June	<1%	32%	2%	37%	10.5–13.3°C
July	<1%	30%	3%	32%	11.8–14.9°C
August	<1%	37%	5%	46%	11.6–14.4°C
September	0%	43%	6%	54%	8.3–11.7°C
October	0%	48%	7%	65%	4.7–8.1°C
November	0%	45%	7%	60%	2.0–5.5°C
December	0%	47%	7%	59%	-0.1–4.6°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.

1949Each stripe is one year’s mean temperature against the 77-year average. Warmest: 2025. Coolest: 1979.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 3412888
NOAA station: IC000004013 · STYKKISHOLMUR
Station distance: 0.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 23 usable years
Daylight: Calculated from latitude 65.08°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 7 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 STYKKISHOLMUR is what differs

Grundarfjörður→Búðardalur→Reykhólar→Flatey→Búðir→Saelingsdal→

Or put two places side by side: Stykkishólmur vs Grundarfjörður

Best time to visitStykkishólmur.

July

July

July

The whole year,without the guesswork.

Stykkishólmur runs +1.3°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Stykkishólmur.

The whole year,
without the guesswork.

Stykkishólmur runs +1.3°C
on the 1961–1990 baseline.

Nearby, measured,
and named.