United States · 1991–2020

Best time to visit
Kennebunkport.

August leads for comfortable weather in Kennebunkport: typically 24.2°C by day, 13.4°C at night, with 99 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high24.2°C

Typical low13.4°C

Rain in August99 mm

Comfort

August

August · July · June

83climate match

Beach

July

July · August · June

52climate match

Outdoors

September

September · June · August

81climate match

The weakest month is January, scoring 5 against August’s 83 — days reach only 0.4°C, 24° 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

50.4° / -10.5°

Feb

51.6° / -9.8°

Mar

55.1° / -5.2°

Apr

1211° / 0.2°

May

4216.4° / 5.9°

Jun

6721.5° / 11.3°

Jul

8124.9° / 14.3°

Aug

8324.2° / 13.4°

Sep

6620.7° / 9.4°

Oct

2714.7° / 3°

Nov

59° / -1.6°

Dec

53.8° / -6.7°

Monthly climate evidence for Kennebunkport — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 8 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	0.4°C	-10.5°C	93 mm	9.2	5.5°C	9 h 18	5	Strong coverage
February	1.6°C	-9.8°C	95 mm	8	4.1°C	10 h 26	5	Strong coverage
March	5.1°C	-5.2°C	120 mm	8.9	3.6°C	11 h 47	5	Strong coverage
April	11°C	0.2°C	120 mm	9.9	5.4°C	13 h 21	12	Strong coverage
May	16.4°C	5.9°C	108 mm	10.5	9.1°C	14 h 40	42	Strong coverage
June	21.5°C	11.3°C	119 mm	10.2	13.4°C	15 h 23	67	Strong coverage
July	24.9°C	14.3°C	99 mm	8.9	16.9°C	15 h 06	81	Strong coverage
August	24.2°C	13.4°C	99 mm	8.1	17.9°C	13 h 58	83	Strong coverage
September	20.7°C	9.4°C	100 mm	7.1	16.0°C	12 h 27	66	Strong coverage
October	14.7°C	3°C	143 mm	9.2	12.5°C	10 h 57	27	Strong coverage
November	9°C	-1.6°C	106 mm	9.1	9.5°C	9 h 38	5	Strong coverage
December	3.8°C	-6.7°C	122 mm	9.9	7.4°C	8 h 59	5	Strong coverage

Records at KENNEBUNKPORT, 1989–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	17.2°C7 Jan 2007	-28.9°C1 Jan 2018	80 mm14 Jan 2024	241 mm2024 · driest 11 mm in 2004	37
February	20.0°C24 Feb 2022	-28.3°C14 Feb 2003	88 mm26 Feb 2010	221 mm2008 · driest 19 mm in 2024	37
March	25.0°C28 Mar 1998	-23.3°C10 Mar 1996	102 mm15 Mar 2010	411 mm2010 · driest 20 mm in 2006	37
April	32.8°C18 Apr 2002	-10.6°C30 Apr 2001	97 mm22 Apr 1991	229 mm2007 · driest 16 mm in 1999	37
May	34.4°C20 May 2026	-8.9°C13 May 2001	109 mm14 May 2006	367 mm2006 · driest 12 mm in 2015	37
June	37.2°C25 Jun 2025	1.1°C1 Jun 2020	108 mm14 Jun 1998	308 mm1998 · driest 15 mm in 1999	38
July	37.2°C23 Jul 2011	1.7°C6 Jul 2000	104 mm14 Jul 2010	265 mm2021 · driest 29 mm in 2025	37
August	35.6°C13 Aug 2016	-1.7°C26 Aug 1995	135 mm20 Aug 1991	325 mm1991 · driest 6 mm in 1996	37
September	33.9°C10 Sep 2016	-7.2°C19 Sep 1995	145 mm7 Sep 2008	303 mm2008 · driest 14 mm in 2019	36
October	28.9°C11 Oct 2018	-11.1°C23 Oct 2008	194 mm21 Oct 1996	396 mm1996 · driest 15 mm in 1994	37
November	26.1°C7 Nov 2024	-19.4°C24 Nov 1989	131 mm15 Nov 2009	267 mm2018 · driest 21 mm in 2012	37
December	23.9°C8 Dec 1998	-26.1°C24 Dec 1989	99 mm10 Dec 2014	218 mm2014 · driest 45 mm in 1989	37

Typical days per month at KENNEBUNKPORT, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	29	3	6
February	0	0	27	3	5
March	<1	0	26	4	3
April	<1	<1	16	4	<1
May	2	<1	3	4	0
June	7	2	0	4	0
July	15	3	0	3	0
August	13	2	<1	3	0
September	4	<1	<1	3	0
October	<1	0	10	4	<1
November	0	0	20	4	<1
December	0	0	27	4	4

How often, not how much — every day in KENNEBUNKPORT’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%	30%	11%	36%	-1.7–3.2°C
February	<1%	28%	10%	34%	-1.6–3.7°C
March	<1%	29%	12%	37%	3.1–7.4°C
April	4%	35%	12%	46%	9.3–12.6°C
May	19%	35%	12%	45%	14.9–18.3°C
June	49%	34%	12%	44%	19.7–23.3°C
July	69%	29%	10%	34%	23.4–26.4°C
August	71%	26%	9%	27%	23.2–25.4°C
September	48%	24%	10%	27%	19.5–22.2°C
October	10%	29%	12%	36%	13.5–16.5°C
November	2%	29%	12%	34%	7.0–11.6°C
December	<1%	32%	14%	41%	1.0–6.3°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.

1990Each stripe is one year’s mean temperature against the 34-year average. Warmest: 2023. Coolest: 1992.2024

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4968747
NOAA station: USC00174193 · KENNEBUNKPORT
Station distance: 0.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 43.36°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 8 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 KENNEBUNKPORT is what differs

Biddeford→Saco→York Beach→Wells Beach Station→Kennebunk→Arundel→

Or put two places side by side: Kennebunkport vs Biddeford

Best time to visitKennebunkport.