Greenland · 1991–2020

Best time to visit
Atammik.

July leads for comfortable weather in Atammik: typically 11.2°C by day, 4.5°C at night, with 87 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly

Typical high11.2°C

Typical low4.5°C

Rain in July87 mm

Comfort

July

July · August · June

27climate match

Beach

January

January · February · March

5climate match

Outdoors

July

July · June · August

49climate match

The weakest month is January, scoring 5 against July’s 27 — days reach only -5.1°C, 29° 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

5-5.1° / -9.5°

Feb

5-5.6° / -10.5°

Mar

5-5.1° / -9.8°

Apr

5-0.7° / -5.1°

May

54° / -0.9°

Jun

168.5° / 2.1°

Jul

2711.2° / 4.5°

Aug

1910.3° / 4.6°

Sep

56.7° / 2.2°

Oct

52.3° / -1.5°

Nov

5-1.1° / -5.1°

Dec

5-3.2° / -7.4°

Monthly climate evidence for Atammik — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 11 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	-5.1°C	-9.5°C	120 mm	13.6	0.0°C	5 h 01	5	Strong coverage
February	-5.6°C	-10.5°C	78 mm	9.7	-0.3°C	8 h 16	5	Strong coverage
March	-5.1°C	-9.8°C	79 mm	10.7	-0.3°C	11 h 26	5	Strong coverage
April	-0.7°C	-5.1°C	61 mm	8.4	0.3°C	15 h 00	5	Strong coverage
May	4°C	-0.9°C	66 mm	7.8	1.7°C	18 h 33	5	Strong coverage
June	8.5°C	2.1°C	76 mm	7.3	3.4°C	21 h 38	16	Strong coverage
July	11.2°C	4.5°C	87 mm	7.9	5.3°C	20 h 09	27	Strong coverage
August	10.3°C	4.6°C	116 mm	9.3	5.5°C	16 h 32	19	Strong coverage
September	6.7°C	2.2°C	127 mm	11.4	4.2°C	12 h 55	5	Strong coverage
October	2.3°C	-1.5°C	103 mm	11	2.6°C	9 h 30	5	Strong coverage
November	-1.1°C	-5.1°C	161 mm	12.3	1.3°C	6 h 05	5	Strong coverage
December	-3.2°C	-7.4°C	124 mm	13.9	0.6°C	3 h 48	5	Strong coverage

What has changed

Atammik runs +0.1°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

+0.1

Feb

-1.2

Mar

+0.1

Apr

+0.4

May

-0.3

Jun

+0.2

Jul

+0.3

Aug

+0.1

Sep

0.0

Oct

+0.6

Nov

+0.4

Dec

+0.7

July daytime highs, 2011–2025. Last recorded: 11.6°C.

Records at NUUK, 1958–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	13.5°C3 Jan 1997	-29.5°C14 Jan 1984	90 mm8 Jan 2002	929 mm2000 · driest 3 mm in 1966	69
February	13.0°C21 Feb 1965	-36.2°C9 Feb 2008	88 mm7 Feb 1983	338 mm1983 · driest 1 mm in 2010	68
March	15.2°C5 Mar 2023	-27.3°C1 Mar 1983	53 mm18 Mar 2008	320 mm2008 · driest 1 mm in 1958	68
April	16.9°C9 Apr 2025	-19.6°C9 Apr 1997	55 mm3 Apr 1977	193 mm2012 · driest 0 mm in 2023	68
May	18.3°C25 May 2010	-13.4°C3 May 1993	66 mm12 May 2005	230 mm2005 · driest 2 mm in 2019	67
June	19.9°C10 Jun 2016	-4.0°C14 Jun 1966	140 mm26 Jun 1973	276 mm2001 · driest 1 mm in 2010	68
July	24.0°C12 Jul 2008	-2.6°C9 Jul 1986	143 mm31 Jul 2000	377 mm2000 · driest 4 mm in 1992	68
August	22.0°C25 Aug 1973	-1.5°C17 Aug 1976	163 mm1 Aug 1984	379 mm1984 · driest 0 mm in 1958	68
September	22.8°C2 Sep 2010	-4.8°C29 Sep 1989	126 mm22 Sep 1967	315 mm1967 · driest 8 mm in 2021	68
October	18.9°C11 Oct 2010	-16.6°C23 Oct 1982	64 mm20 Oct 1964	266 mm1978 · driest 0 mm in 2021	68
November	16.3°C26 Nov 2005	-17.0°C30 Nov 1967	217 mm6 Nov 2010	1084 mm2010 · driest 6 mm in 2015	68
December	13.3°C28 Dec 2020	-23.6°C19 Dec 1971	117 mm1 Dec 2010	507 mm1999 · driest 3 mm in 2013	68

Typical days per month at NUUK, 1991–2020
Month	Frost nights	Heavy rain (10 mm+)
January	27	3
February	26	2
March	28	2
April	26	2
May	19	2
June	5	2
July	<1	2
August	<1	3
September	4	4
October	21	3
November	26	4
December	26	3

How often, not how much — every day in NUUK’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%	49%	-8.2–-0.2°C
February	0%	35%	7%	44%	-9.8–-0.6°C
March	0%	35%	6%	45%	-8.4–-1.7°C
April	0%	29%	6%	38%	-3.3–1.3°C
May	0%	28%	7%	35%	1.3–5.9°C
June	0%	27%	8%	34%	6.3–9.9°C
July	<1%	29%	10%	37%	9.2–12.5°C
August	<1%	31%	12%	40%	8.5–11.9°C
September	<1%	37%	13%	51%	5.1–8.0°C
October	0%	35%	9%	48%	0.5–3.7°C
November	0%	38%	10%	52%	-3.9–1.2°C
December	0%	39%	9%	48%	-6.6–0.1°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.

1959Each stripe is one year’s mean temperature against the 59-year average. Warmest: 2010. Coolest: 1984.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 3424424
NOAA station: GL000004250 · NUUK
Station distance: 73.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 27 usable years
Daylight: Calculated from latitude 64.80°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 11 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 NUUK is what differs

Nuuk→Kapisillit→Kangerluarsoruseq→Qoornoq→Qooqqut→Uummannaq→

Or put two places side by side: Atammik vs Nuuk

Best time to visitAtammik.

July

January

July

The whole year,without the guesswork.

Atammik runs +0.1°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Atammik.

The whole year,
without the guesswork.

Atammik runs +0.1°C
on the 1961–1990 baseline.

Nearby, measured,
and named.