United States · 1991–2020

Best time to visit
Vinalhaven.

August leads for comfortable weather in Vinalhaven: typically 24.7°C by day, 15°C at night, with 84 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high24.7°C

Typical low15°C

Rain in August84 mm

Comfort

August

August · July · June

87climate match

Beach

July

July · August · June

58climate match

Outdoors

September

September · June · May

77climate match

The weakest month is January, scoring 5 against August’s 87 — days reach only -0.7°C, 25° 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

5-0.7° / -11°

Feb

50.4° / -10.2°

Mar

54.3° / -5.5°

Apr

1210.9° / 0.9°

May

4517° / 6.7°

Jun

6921.7° / 11.9°

Jul

8524.9° / 15.3°

Aug

8724.7° / 15°

Sep

6620.6° / 11.1°

Oct

2614.1° / 4.9°

Nov

58.3° / -0.6°

Dec

52.6° / -6.5°

Monthly climate evidence for Vinalhaven — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 9 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	-0.7°C	-11°C	119 mm	9.1	4.5°C	9 h 13	5	Strong coverage
February	0.4°C	-10.2°C	103 mm	8.1	2.8°C	10 h 23	5	Strong coverage
March	4.3°C	-5.5°C	124 mm	8.8	2.6°C	11 h 47	5	Strong coverage
April	10.9°C	0.9°C	130 mm	9.5	4.4°C	13 h 23	12	Strong coverage
May	17°C	6.7°C	108 mm	10	7.4°C	14 h 44	45	Strong coverage
June	21.7°C	11.9°C	118 mm	9.4	10.7°C	15 h 28	69	Strong coverage
July	24.9°C	15.3°C	77 mm	8.7	13.5°C	15 h 10	85	Strong coverage
August	24.7°C	15°C	84 mm	7.6	14.5°C	14 h 00	87	Strong coverage
September	20.6°C	11.1°C	116 mm	7.6	13.7°C	12 h 27	66	Strong coverage
October	14.1°C	4.9°C	155 mm	9.5	11.9°C	10 h 55	26	Strong coverage
November	8.3°C	-0.6°C	133 mm	8.7	9.5°C	9 h 34	5	Strong coverage
December	2.6°C	-6.5°C	139 mm	10.4	6.9°C	8 h 54	5	Strong coverage

Records at W ROCKPORT 1 NNW, 1976–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	15.0°C9 Jan 2008	-30.0°C22 Jan 1984	83 mm22 Jan 1979	279 mm1979 · driest 14 mm in 2004	50
February	18.3°C24 Feb 2022	-28.9°C14 Feb 2003	72 mm8 Feb 1983	225 mm2008 · driest 13 mm in 1987	50
March	28.9°C23 Mar 2012	-23.9°C9 Mar 2007	83 mm7 Mar 2011	304 mm2024 · driest 24 mm in 1981	50
April	28.3°C1 Apr 1998	-12.2°C5 Apr 1995	137 mm28 Apr 2005	317 mm2005 · driest 12 mm in 1999	50
May	35.0°C23 May 1992	-6.1°C4 May 1986	159 mm1 May 2023	242 mm2005 · driest 17 mm in 2015	50
June	35.6°C25 Jun 2025	1.7°C1 Jun 2020	94 mm20 Jun 2009	290 mm2009 · driest 26 mm in 1983	50
July	35.6°C21 Jul 1991	6.1°C7 Jul 1980	133 mm14 Jul 1996	221 mm2014 · driest 18 mm in 2026	50
August	33.9°C19 Aug 2009	2.8°C27 Aug 1989	82 mm26 Aug 2010	211 mm1991 · driest 10 mm in 2001	49
September	32.8°C1 Sep 2010	-2.2°C29 Sep 1980	161 mm25 Sep 1994	388 mm1994 · driest 20 mm in 2020	49
October	28.9°C7 Oct 2025	-10.0°C11 Oct 1993	158 mm31 Oct 2021	444 mm2005 · driest 32 mm in 1997	50
November	23.9°C7 Nov 2024	-15.6°C22 Nov 2018	109 mm2 Nov 1988	419 mm1983 · driest 14 mm in 1998	50
December	17.2°C8 Dec 1998	-31.7°C26 Dec 1980	93 mm22 Dec 1977	238 mm1977 · driest 32 mm in 1998	50

Typical days per month at W ROCKPORT 1 NNW, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	28	4	5
February	0	0	26	3	6
March	<1	0	25	4	3
April	<1	0	13	3	1
May	2	<1	<1	4	0
June	7	1	0	4	0
July	16	3	0	2	0
August	15	2	0	3	0
September	5	<1	0	3	0
October	<1	0	4	4	<1
November	0	0	17	4	<1
December	0	0	26	5	4

How often, not how much — every day in W ROCKPORT 1 NNW’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%	29%	12%	31%	-4.8–1.7°C
February	0%	28%	11%	31%	-2.4–2.7°C
March	<1%	28%	13%	33%	2.4–6.4°C
April	3%	33%	13%	41%	8.8–12.6°C
May	23%	31%	12%	39%	15.0–18.9°C
June	52%	33%	12%	38%	19.4–23.5°C
July	69%	28%	8%	33%	22.9–26.5°C
August	71%	26%	9%	25%	22.2–25.9°C
September	42%	25%	10%	29%	18.5–22.0°C
October	8%	30%	13%	36%	12.3–16.0°C
November	<1%	30%	14%	38%	6.4–10.4°C
December	0%	31%	15%	38%	-0.3–4.9°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.

1977Each stripe is one year’s mean temperature against the 47-year average. Warmest: 2024. Coolest: 1986.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4981804
NOAA station: USC00179593 · W ROCKPORT 1 NNW
Station distance: 29.8 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 44.05°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 9 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 W ROCKPORT 1 NNW is what differs

Rockland→Warren→Camden→Rockport→Union→Owls Head→

Or put two places side by side: Vinalhaven vs Rockland

Best time to visitVinalhaven.