United States · 1991–2020

Best time to visit
Westport.

July leads for comfortable weather in Westport: typically 18.7°C by day, 11.1°C at night, with 29 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly

Typical high18.7°C

Typical low11.1°C

Rain in July29 mm

Comfort

July

July · August · September

74climate match

Beach

July

July · August · September

39climate match

Outdoors

July

July · August · September

92climate match

The weakest month is January, scoring 5 against July’s 74 — days reach only 9.2°C, 15° below the 24°C the score treats as ideal, and 291 mm of rain falls.

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

59.2° / 3°

Feb

510.8° / 2.8°

Mar

511.5° / 3.6°

Apr

1713° / 5°

May

4215.3° / 7.5°

Jun

5817.2° / 9.7°

Jul

7418.7° / 11.1°

Aug

7319.2° / 11.1°

Sep

6719.1° / 9.3°

Oct

2215.2° / 6°

Nov

511.3° / 4.3°

Dec

58.8° / 2.6°

Monthly climate evidence for Westport — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 2 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	9.2°C	3°C	291 mm	20	8.9°C	8 h 55	5	Good coverage
February	10.8°C	2.8°C	182 mm	15.7	8.8°C	10 h 13	5	Good coverage
March	11.5°C	3.6°C	205 mm	19.3	9.4°C	11 h 45	5	Good coverage
April	13°C	5°C	155 mm	16.3	10.6°C	13 h 31	17	Good coverage
May	15.3°C	7.5°C	90 mm	11.5	12.2°C	15 h 01	42	Good coverage
June	17.2°C	9.7°C	62 mm	9.6	13.6°C	15 h 51	58	Good coverage
July	18.7°C	11.1°C	29 mm	5	14.0°C	15 h 31	74	Good coverage
August	19.2°C	11.1°C	45 mm	5.6	14.2°C	14 h 13	73	Good coverage
September	19.1°C	9.3°C	59 mm	6.6	14.2°C	12 h 30	67	Good coverage
October	15.2°C	6°C	189 mm	15.3	12.8°C	10 h 48	22	Good coverage
November	11.3°C	4.3°C	313 mm	19.9	11.0°C	9 h 18	5	Good coverage
December	8.8°C	2.6°C	287 mm	20.1	9.5°C	8 h 33	5	Good coverage

Records at GRAYLAND, 1948–2013
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	20.0°C20 Jan 1961	-11.7°C28 Jan 1972	102 mm31 Jan 2006	664 mm2006 · driest 21 mm in 1979	56
February	24.4°C27 Feb 1992	-12.8°C4 Feb 1989	103 mm10 Feb 1990	490 mm1961 · driest 38 mm in 1993	59
March	24.4°C28 Mar 1994	-5.6°C19 Mar 1965	83 mm31 Mar 1959	444 mm1997 · driest 40 mm in 1992	57
April	27.2°C30 Apr 1989	-3.3°C1 Apr 1963	57 mm5 Apr 1988	261 mm1993 · driest 31 mm in 1956	60
May	28.9°C31 May 1970	-2.8°C1 May 1954	59 mm29 May 1969	198 mm1960 · driest 17 mm in 1982	61
June	29.4°C6 Jun 1948	0.6°C24 Jun 2002	69 mm12 Jun 2000	123 mm1997 · driest 9 mm in 1980	62
July	29.4°C31 Jul 1968	0.0°C3 Jul 1976	44 mm13 Jul 1983	132 mm1955 · driest 3 mm in 1960	61
August	31.1°C20 Aug 2009	1.7°C4 Aug 2002	46 mm29 Aug 1991	175 mm1991 · driest 2 mm in 1998	60
September	33.3°C4 Sep 1955	-1.1°C27 Sep 1972	69 mm17 Sep 1997	276 mm1978 · driest 2 mm in 1993	58
October	29.4°C1 Oct 1975	-4.4°C30 Oct 2002	102 mm29 Oct 1982	399 mm1975 · driest 18 mm in 1987	61
November	22.8°C4 Nov 2010	-11.1°C15 Nov 1955	109 mm19 Nov 2012	535 mm2006 · driest 58 mm in 1978	57
December	17.8°C10 Dec 1957	-13.9°C23 Dec 1983	89 mm9 Dec 1956	473 mm1998 · driest 76 mm in 1985	56

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

How often, not how much — every day in GRAYLAND’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	<1%	63%	31%	79%	6.8–10.8°C
February	1%	59%	26%	76%	8.6–12.6°C
March	2%	60%	23%	77%	9.8–13.5°C
April	4%	51%	16%	68%	11.5–14.3°C
May	7%	38%	9%	49%	13.9–16.8°C
June	9%	31%	6%	40%	16.0–18.5°C
July	22%	18%	4%	18%	17.6–19.8°C
August	31%	20%	5%	23%	17.9–20.5°C
September	31%	27%	9%	35%	17.8–21.5°C
October	11%	47%	21%	65%	14.4–17.0°C
November	<1%	65%	33%	84%	9.9–13.2°C
December	0%	63%	32%	81%	7.1–10.5°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.

1954Each stripe is one year’s mean temperature against the 45-year average. Warmest: 1958. Coolest: 1955.2010

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5815665
NOAA station: USC00453320 · GRAYLAND
Station distance: 10 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 19 usable years
Daylight: Calculated from latitude 46.89°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 2 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 GRAYLAND is what differs

Grayland→Cohassett Beach→Tokeland→Heather→Bay City→Cohassett→

Or put two places side by side: Westport vs Grayland

Best time to visitWestport.

July

July

July

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Westport.

The whole year,
without the guesswork.

Nearby, measured,
and named.