United States · 1991–2020

Best time to visit
Warm Beach.

August leads for comfortable weather in Warm Beach: typically 22.5°C by day, 11.5°C at night, with 17 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high22.5°C

Typical low11.5°C

Rain in August17 mm

Comfort

August

August · July · September

89climate match

Beach

August

August · July · September

54climate match

Outdoors

September

September · June · July

96climate match

The weakest month is December, scoring 10 against August’s 89 — days reach only 7.4°C, 17° 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

128° / 2.7°

Feb

209.3° / 2.3°

Mar

3011.6° / 3.5°

Apr

4514.7° / 5.4°

May

6117.6° / 8.1°

Jun

7219.5° / 10°

Jul

8822.2° / 11.5°

Aug

8922.5° / 11.5°

Sep

7419.8° / 9.7°

Oct

4614.7° / 6.9°

Nov

2110.3° / 4.2°

Dec

107.4° / 2.3°

Monthly climate evidence for Warm Beach — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 38 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	8°C	2.7°C	64 mm	12.9	8.0°C	8 h 45	12	Strong coverage
February	9.3°C	2.3°C	49 mm	10.1	7.9°C	10 h 07	20	Strong coverage
March	11.6°C	3.5°C	51 mm	10.3	8.2°C	11 h 44	30	Strong coverage
April	14.7°C	5.4°C	47 mm	9.1	8.9°C	13 h 35	45	Strong coverage
May	17.6°C	8.1°C	43 mm	7.8	9.9°C	15 h 09	61	Strong coverage
June	19.5°C	10°C	34 mm	7.1	10.9°C	16 h 03	72	Strong coverage
July	22.2°C	11.5°C	18 mm	2.9	11.6°C	15 h 41	88	Strong coverage
August	22.5°C	11.5°C	17 mm	3.3	11.9°C	14 h 19	89	Strong coverage
September	19.8°C	9.7°C	32 mm	5.7	11.4°C	12 h 31	74	Strong coverage
October	14.7°C	6.9°C	53 mm	9.2	10.2°C	10 h 44	46	Strong coverage
November	10.3°C	4.2°C	80 mm	12.5	9.3°C	9 h 10	21	Strong coverage
December	7.4°C	2.3°C	66 mm	12.2	8.5°C	8 h 22	10	Strong coverage

What has changed

Warm Beach runs -0.0°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

+0.8

Feb

-1.0

Mar

+0.1

Apr

+0.9

May

+0.6

Jun

-0.7

Jul

-0.6

Aug

0.0

Sep

-0.4

Oct

-0.2

Nov

+0.5

Dec

-0.2

August daytime highs, 2011–2020. Last recorded: 21.3°C.

Records at COUPEVILLE 1 S, 1895–2020
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	18.3°C31 Jan 1935	-16.1°C25 Jan 1950	32 mm7 Jan 2009	178 mm1971 · driest 9 mm in 1985	107
February	20.6°C25 Feb 1986	-15.0°C1 Feb 1950	42 mm5 Feb 2020	125 mm1899 · driest 7 mm in 1941	108
March	25.6°C29 Mar 2004	-11.7°C3 Mar 1896	30 mm20 Mar 1952	89 mm1897 · driest 9 mm in 1941	106
April	27.2°C30 Apr 2004	-3.9°C2 Apr 1935	32 mm28 Apr 1972	96 mm1972 · driest 2 mm in 1956	106
May	30.0°C12 May 1926	-2.2°C1 May 1954	62 mm28 May 1948	116 mm1948 · driest 2 mm in 1946	106
June	33.3°C17 Jun 1958	1.7°C13 Jun 1952	54 mm14 Jun 1946	90 mm1946 · driest 1 mm in 1938	103
July	35.6°C16 Jul 1941	4.4°C3 Jul 1951	36 mm10 Jul 1932	60 mm1974 · driest 0 mm in 1896	104
August	36.7°C8 Aug 1960	3.3°C29 Aug 1980	32 mm11 Aug 2018	72 mm1899 · driest 0 mm in 1998	105
September	32.8°C15 Sep 1967	-1.7°C27 Sep 1972	57 mm1 Sep 1983	95 mm1907 · driest 2 mm in 1942	104
October	26.1°C3 Oct 1980	-7.2°C30 Oct 1935	41 mm17 Oct 2009	106 mm1985 · driest 2 mm in 1987	105
November	20.0°C3 Nov 2010	-14.4°C22 Nov 1985	45 mm24 Nov 1990	192 mm1995 · driest 6 mm in 1943	108
December	17.8°C2 Dec 1907	-16.1°C16 Dec 1964	50 mm29 Dec 1996	171 mm1971 · driest 13 mm in 1985	107

Typical days per month at COUPEVILLE 1 S, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	7	1
February	0	0	8	<1
March	0	0	4	1
April	<1	0	<1	1
May	<1	0	0	1
June	2	<1	0	<1
July	6	<1	0	<1
August	6	<1	0	<1
September	1	0	0	<1
October	0	0	<1	1
November	0	0	4	2
December	0	0	8	1

How often, not how much — every day in COUPEVILLE 1 S’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%	41%	4%	53%	4.6–9.3°C
February	0%	36%	3%	47%	7.0–11.1°C
March	<1%	34%	2%	42%	9.4–12.9°C
April	5%	30%	3%	32%	12.4–15.6°C
May	18%	25%	3%	26%	15.5–18.7°C
June	39%	22%	2%	22%	17.9–21.5°C
July	71%	12%	1%	7%	20.3–24.0°C
August	74%	13%	2%	12%	20.9–23.9°C
September	41%	20%	3%	19%	18.0–21.4°C
October	5%	29%	4%	37%	13.3–15.9°C
November	<1%	41%	6%	58%	8.4–11.9°C
December	0%	45%	5%	62%	5.4–9.2°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.

1896Each stripe is one year’s mean temperature against the 89-year average. Warmest: 1958. Coolest: 1955.2018

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5815033
NOAA station: USC00451783 · COUPEVILLE 1 S
Station distance: 24.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 26 usable years
Daylight: Calculated from latitude 48.17°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 38 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 COUPEVILLE 1 S is what differs

Camano→Coupeville→Baby Island Heights→Bretland→Camp Diana→Captains Choice→

Or put two places side by side: Warm Beach vs Camano

Best time to visitWarm Beach.

August

August

September

The whole year,without the guesswork.

Warm Beach runs -0.0°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Warm Beach.

The whole year,
without the guesswork.

Warm Beach runs -0.0°C
on the 1961–1990 baseline.

Nearby, measured,
and named.