United States · 1991–2020

Best time to visit
Yarmouth.

August leads for comfortable weather in Yarmouth: typically 25.9°C by day, 15.3°C at night, with 94 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high25.9°C

Typical low15.3°C

Rain in August94 mm

Comfort

August

August · July · June

80climate match

Beach

July

July · August · June

59climate match

Outdoors

September

September · May · June

74climate match

The weakest month is January, scoring 5 against August’s 80 — days reach only -1.3°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

5-1.3° / -10°

Feb

50.8° / -8.7°

Mar

55.2° / -4.4°

Apr

2012.1° / 1.6°

May

5218.3° / 7.2°

Jun

7323° / 12.5°

Jul

7626.3° / 15.9°

Aug

8025.9° / 15.3°

Sep

7221.8° / 11.3°

Oct

3014.6° / 5.2°

Nov

57.7° / -0.6°

Dec

51.7° / -6.2°

Monthly climate evidence for Yarmouth — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 20 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	-1.3°C	-10°C	88 mm	8.8	5.3°C	9 h 15	5	Strong coverage
February	0.8°C	-8.7°C	87 mm	8.1	3.8°C	10 h 24	5	Strong coverage
March	5.2°C	-4.4°C	98 mm	8.7	3.4°C	11 h 47	5	Strong coverage
April	12.1°C	1.6°C	115 mm	9.1	5.3°C	13 h 22	20	Strong coverage
May	18.3°C	7.2°C	97 mm	10.5	8.8°C	14 h 42	52	Strong coverage
June	23°C	12.5°C	127 mm	10.6	12.9°C	15 h 26	73	Strong coverage
July	26.3°C	15.9°C	100 mm	9.6	16.4°C	15 h 09	76	Strong coverage
August	25.9°C	15.3°C	94 mm	8.1	17.4°C	13 h 59	80	Strong coverage
September	21.8°C	11.3°C	109 mm	7.6	15.5°C	12 h 27	72	Strong coverage
October	14.6°C	5.2°C	149 mm	9.4	12.2°C	10 h 56	30	Strong coverage
November	7.7°C	-0.6°C	118 mm	9.2	9.4°C	9 h 35	5	Strong coverage
December	1.7°C	-6.2°C	116 mm	9.8	7.2°C	8 h 56	5	Strong coverage

Records at GRAY, 1995–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	18.9°C6 Jan 2007	-26.1°C15 Jan 2004	65 mm10 Jan 2016	179 mm2024 · driest 10 mm in 2004	31
February	17.2°C23 Feb 2022	-27.2°C4 Feb 2023	90 mm25 Feb 2010	216 mm2008 · driest 9 mm in 2024	31
March	30.0°C31 Mar 1998	-20.0°C6 Mar 2007	81 mm10 Mar 2024	297 mm2024 · driest 30 mm in 2006	31
April	32.8°C28 Apr 2009	-9.4°C4 Apr 2016	99 mm16 Apr 1996	270 mm2005 · driest 9 mm in 1999	31
May	35.0°C18 May 2017	-0.6°C9 May 2020	54 mm20 May 2023	217 mm2006 · driest 23 mm in 2018	31
June	37.2°C24 Jun 2025	2.8°C1 Jun 2009	107 mm13 Jun 1998	281 mm2012 · driest 21 mm in 2021	31
July	37.2°C22 Jul 2011	8.3°C5 Jul 2021	115 mm13 Jul 1996	266 mm2021 · driest 18 mm in 2026	31
August	35.6°C7 Aug 2001	7.8°C31 Aug 2002	125 mm13 Aug 2014	218 mm2023 · driest 4 mm in 1996	30
September	35.6°C9 Sep 2002	-0.6°C29 Sep 2000	140 mm30 Sep 2015	319 mm2008 · driest 20 mm in 2019	30
October	28.9°C6 Oct 2025	-4.4°C31 Oct 2020	165 mm10 Oct 1998	415 mm2005 · driest 33 mm in 1997	31
November	24.4°C5 Nov 2022	-16.1°C22 Nov 2018	107 mm14 Nov 2009	220 mm2018 · driest 33 mm in 2012	30
December	20.6°C7 Dec 1998	-23.3°C28 Dec 2017	81 mm14 Dec 2019	203 mm2023 · driest 48 mm in 1998	31

Typical days per month at GRAY, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	30	3	9
February	0	0	27	4	8
March	<1	0	26	3	6
April	<1	<1	11	3	2
May	4	<1	<1	3	0
June	12	3	0	4	0
July	22	5	0	3	0
August	20	4	0	3	0
September	7	1	0	3	0
October	<1	0	4	4	<1
November	0	0	18	4	2
December	0	0	29	4	7

How often, not how much — every day in GRAY’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%	10%	35%	-3.9–1.3°C
February	0%	28%	11%	31%	-1.3–2.9°C
March	2%	29%	11%	37%	3.1–7.5°C
April	7%	31%	12%	39%	10.6–13.8°C
May	32%	33%	11%	40%	16.4–20.6°C
June	57%	35%	12%	46%	20.7–25.0°C
July	68%	31%	10%	35%	24.1–27.9°C
August	72%	27%	9%	28%	24.3–27.2°C
September	52%	25%	10%	28%	20.4–23.3°C
October	13%	29%	13%	37%	13.4–16.3°C
November	2%	30%	12%	40%	5.6–10.1°C
December	<1%	32%	12%	41%	-0.6–4.4°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.

1996Each stripe is one year’s mean temperature against the 29-year average. Warmest: 2010. Coolest: 1997.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4983572
NOAA station: USC00173295 · GRAY
Station distance: 11.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 25 usable years
Daylight: Calculated from latitude 43.80°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 20 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 GRAY is what differs

Cumberland Center→Freeport→Gray→Cousins Island→Littlejohn Island→Crockett Corner→

Or put two places side by side: Yarmouth vs Cumberland Center

Best time to visitYarmouth.