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Kennebunkport, Maine

Sun, sea & sand

Kennebunkport, Maine at a glance

Best time
Jul – Aug
Warmest month
Jul · 25°
Warmest sea
Aug · 18.2°
Sunshine a year
2,230 h
Rain a year
1,071 mm
Climate
Continental
Time zone
UTC−5 / UTC−4
Elevation
3 m

Climate in Kennebunkport, Maine

Kennebunkport, Maine has warm to hot summers and cold winters with occasional snow. July is the warmest month with average highs of 25 °C, while January is the coolest at 0 °C. With around 2,230 hours of sunshine a year, Kennebunkport, Maine is sunny; July is the sunniest month with 8.1 hours a day.

Holiday weather through the year

Your holiday weather, at a glance

Weather in October

20

Holiday weather in October

Poor

Best time to visit: July – August

A typical day in October

  1. Morning, 08:00: about 10°
  2. Midday, 13:00: about 14°
  3. Afternoon, 16:00: about 14°
  4. Evening, 20:00: about 12°
  5. Night, 23:00: about 11°

06:5418:01

Cool evenings: pack a jumper or a jacket.

Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.

Light for photos in October

Golden hour
Morning 06:37–07:33 · evening 17:22–18:18
Blue hour
Morning 06:25–06:37 · evening 18:18–18:30

Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.

What is the weather like in Kennebunkport, Maine in October?

In October, Kennebunkport, Maine is cool: daytime highs average 14 °C, and nights cool down to about 9 °C. The sea averages 13.0 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 110 mm in total. All in all, October is not an ideal month for a holiday in Kennebunkport, Maine.

More details for October

Daylight
11 h 7 min06:54 – 18:01
UV index
3 · moderateclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
19 km/haverage daily peakAll months
Cloud cover
54 %on averageAll months
Hot days
0 days30 °C or moreAll months
Snow days
0 days1 cm or more of fresh snowAll months
Time zone
UTC−4America/New_York

How the score comes together

  • Temperatureweight 35 %0 %
  • Seaweight 25 %0 %
  • Sunshineweight 20 %38 %
  • Few rainy daysweight 20 %61 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.

What to pack in October

  • Sunscreen
  • A jumper for the evenings
  • Rain jacket or umbrella
Swimming calendar

Sea temperature in Kennebunkport, Maine

Monthly sea surface temperature with the range of cooler and warmer years.

Sea in October13.0°Ccold

8 in 10 years: 11.8 – 14.1 °C

Swimming season: Never above 20 °C

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 13.0°8 in 10 years 11.8° – 14.1°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Kennebunkport, Maine ranges from 3.9 °C in March to 18.2 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.

The sea warms up slowly: it is warmest in August, while the air already peaks in July. From November to February the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in August, eight out of ten years were between 17.0 and 19.2 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan5.7°4.7°6.8°cold
FebruaryFeb4.2°3.3°5.2°cold
MarchMar3.9°2.7°5.0°cold
AprilApr5.7°4.7°6.7°cold
MayMay9.4°8.3°10.5°cold
JuneJun13.7°12.5°14.7°cold
JulyJul17.1°15.9°18.6°fresh
AugustAug18.2°17.0°19.2°fresh
SeptemberSep16.4°15.6°17.6°cold
OctoberOct13.0°11.8°14.1°cold
NovemberNov9.8°8.8°10.7°cold
DecemberDec7.5°6.7°8.7°cold
Sunshine

Sunshine hours in Kennebunkport, Maine

Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.

Per year
2,230 hours
Sunniest month
Jul · 8.1 h a day
Least sunshine
Dec · 4.0 h a day
OctoberSunshine 5.3 hDaylight 11.1 hShare of daylight 48 %
SunshineDaylight

In October, the sun shines for about 5.3 of 11.1 hours of daylight in Kennebunkport, Maine, 48 % of the day.

Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.

Sun protection

UV index in Kennebunkport, Maine

How strong the sun is at noon, month by month, and how quickly unprotected skin burns.

Clear-sky UV in October
3 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.

The sun is strongest in June (UV 9).

Minutes until sunburn in October

Very fair skin
about 40 min
Fair skin
about 50 min
Light brown skin
about 70 min
Olive skin
about 90 min

Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, water, sand and snow shorten it. Sunscreen extends the time only partly.

Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.

Rain

Rain in Kennebunkport, Maine: rainy days and rainfall

A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.

Per year
1,071 mm on 115 days
Wettest month
Dec · 111 mm
Driest month
Aug · 73 mm
OctoberRainy days 10Rainfall 110 mm

In October, Kennebunkport, Maine has about 10 rainy days with 110 mm of rain in total.

Wind & clouds

Wind and clouds in Kennebunkport, Maine

How breezy and how cloudy Kennebunkport, Maine is through the year. Tap a month to select it on the whole page.

Wind

Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.

Year average
18 km/h · light breeze
Windiest month
Mar · 21 km/h
Calmest month
Aug · 15 km/h
OctoberWind 19 km/hBeaufort 3
20
WindBeaufort 4

In October, the wind in Kennebunkport, Maine typically peaks at 19 km/h during the day: Beaufort 3, light breeze.

Breezy months for windsurfing and kiting

From Beaufort 4 (20 km/h) the daily breeze is usually enough for windsurfing and often for kiting: Nov – Apr.

Clouds

Average share of the sky covered by cloud, day and night.

Year average
57 % · variable cloud
Clearest month
Sep · 52 %
Cloudiest month
May · 63 %
OctoberCloud cover 54 %Sunshine 5.3 h

In October, cloud covers on average 54 % of the sky over Kennebunkport, Maine: variable cloud, with about 5.3 hours of sunshine a day.

Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.

Heat & humidity

Heat and humidity in Kennebunkport, Maine

How often the day gets hot in Kennebunkport, Maine (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.

Hot days a year
3 days
Hottest month
Jul · 25 °C
Hot months
none

Heat calendar

  • pleasant
  • some hot or muggy days
  • often muggy
  • often hot
  • hot and muggy
OctoberHot days (30 °C+) 0Day high 14 °C

In October, Kennebunkport, Maine has about 0 hot days, with an average daytime high of 14 °C: pleasant. Heat plays no part this month.

Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year

Snow

Snow in Kennebunkport, Maine

When Kennebunkport, Maine is likely to be white: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.

Snow days a year
23 days
Fresh snow a year
131 cm
Snowy months
Jan – Feb

Snow calendar

  • hardly any
  • possible
  • likely
  • very likely
OctoberDays with fresh snow 0Fresh snow 1 cmChance of snow 1 / 100

In October, it hardly ever snows in Kennebunkport, Maine.

Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.

Climate through the year

Long-term monthly averages. Tap a month to see its details.

Best time to visit

Nights and sleep in Kennebunkport, Maine

How warm the nights get in each month, from the mean night-time low. Tap a month for details.

  • Frost below 0°
  • Cold 0–8°
  • Cool 8–15°
  • Pleasant 15–20°
  • muggy month (10+ muggy days)

CoolOctober: nights around 9°. A duvet at night and a jumper for the evening.

The coolest nights are in January (−7°), the warmest in July (19°). Nights are pleasant for sleeping (15 to 20 °C) from June to September. Nights fall below 8 °C on average from November to April, so the room should be heated. It is muggy (dew point 18 °C or more) on about 32 days a year, mostly from July to August.

Temperatures through the year

Average daytime high, night-time low and sea temperature per month.

OctoberDay 14°Night 9°Sea 13°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan170°−7°5.7°4.5 h1087
FebruaryFeb211°−6°4.2°5.3 h980
MarchMar225°−2°3.9°6.2 h10102
AprilApr2311°3°5.7°6.6 h11101
MayMay2516°9°9.4°7.1 h1077
JuneJun3721°15°13.7°7.4 h1185
JulyJul6125°19°17.1°8.1 h1083
AugustAug6324°18°18.2°7.6 h973
SeptemberSep3521°15°16.4°6.6 h881
OctoberOct2014°9°13.0°5.3 h10110
NovemberNov189°3°9.8°4.4 h983
DecemberDec144°−2°7.5°4.0 h10111

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences

43.36° N, 70.48° W · 3 m · America/New_York

Best time to visit

Best time to visit Kennebunkport, Maine

The best time to visit Kennebunkport, Maine is from July to August. The sea stays too cool for a classic beach holiday: even in August it only reaches 18.2 °C. For sightseeing, day trips and hiking, conditions are most comfortable from May to September. The wettest month is December with 111 mm of precipitation.

Kennebunkport, Maine through the seasons

How the weather changes over the seasons, with averages for each.

Kennebunkport, Maine in spring

Mar – May

23

Poor

  • 5–16 °C by day
  • Sea 6 °C
  • 7 h of sun a day
  • 31 rainy days in all

Kennebunkport, Maine in summer

Jun – Aug

54

Fair

  • 21–25 °C by day
  • Sea 16 °C
  • 8 h of sun a day
  • 29 rainy days in all

Kennebunkport, Maine in autumn

Sep – Nov

24

Poor

  • 9–21 °C by day
  • Sea 13 °C
  • 5 h of sun a day
  • 27 rainy days in all

Kennebunkport, Maine in winter

Dec – Feb

17

Poor

  • 0–4 °C by day
  • Sea 6 °C
  • 5 h of sun a day
  • 29 rainy days in all

Find your perfect month

Tell us what you like and we rate every month in Kennebunkport, Maine for you.

Swimming in the sea
Sunshine
Little rain

Your best months: July – August

Based on the climate averages; tap a month to see its details.

Compare two months in Kennebunkport, Maine

Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.

vs.

August has the better holiday weather in Kennebunkport, Maine: score 63 against 20. In August, days are 10 °C warmer than in October. The sea is 5 °C warmer in August. August has one rainy day fewer. The sun shines 2 hours longer a day in August.

October vs. August, Kennebunkport, Maine
MonthOctoberAugust
Weather score2063better
Day high14°24°
Night low9°18°
Sea13.0°18.2°
Sunshine5.3 h7.6 hbetter
Rainy days109better
Rainfall110 mm73 mmbetter
Muggy days0better11

Based on the climate averages 1996–2025.

Which month for what?

Beach & swimming

No month

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

May – Sep

15–28 °C and not too much rain

Snow

Dec – Mar

Snow on 2 or more days

Kennebunkport, Maine month by month

The typical weather for every month at a glance.

17January0° · Sea 6° · 5 h

In January, Kennebunkport, Maine is freezing cold: daytime highs average 0 °C, and nights often drop below freezing (−7 °C). The sea averages 5.7 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Precipitation, often as snow, falls on about 10 days, totalling 87 mm. Snow falls on about 6 days. All in all, January is not an ideal month for a holiday in Kennebunkport, Maine.

Kennebunkport, Maine in January
21February1° · Sea 4° · 5 h

In February, Kennebunkport, Maine is freezing cold: daytime highs average 1 °C, and nights often drop below freezing (−6 °C). The sea averages 4.2 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Precipitation, often as snow, falls on about 9 days, totalling 80 mm. Snow falls on about 6 days. All in all, February is not an ideal month for a holiday in Kennebunkport, Maine.

Kennebunkport, Maine in February
22March5° · Sea 4° · 6 h

In March, Kennebunkport, Maine is cold: daytime highs average 5 °C, and nights often drop below freezing (−2 °C). The sea averages 3.9 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 102 mm in total. Snow falls on about 4 days. All in all, March is not an ideal month for a holiday in Kennebunkport, Maine.

Kennebunkport, Maine in March
23April11° · Sea 6° · 7 h

In April, Kennebunkport, Maine is cool: daytime highs average 11 °C, and nights cool down to about 3 °C. The sea averages 5.7 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain is frequent, with about 11 rainy days and 101 mm in total. Snow falls on about 2 days. All in all, April is not an ideal month for a holiday in Kennebunkport, Maine.

Kennebunkport, Maine in April
25May16° · Sea 9° · 7 h

In May, Kennebunkport, Maine is cool: daytime highs average 16 °C, and nights cool down to about 9 °C. The sea averages 9.4 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain is frequent, with about 10 rainy days and 77 mm in total. All in all, May is not an ideal month for a holiday in Kennebunkport, Maine.

Kennebunkport, Maine in May
37June21° · Sea 14° · 7 h

In June, Kennebunkport, Maine is warm: daytime highs average 21 °C, and nights cool down to about 15 °C. The sea averages 13.7 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain is frequent, with about 11 rainy days and 85 mm in total. All in all, June is not an ideal month for a holiday in Kennebunkport, Maine.

Kennebunkport, Maine in June
61July25° · Sea 17° · 8 h

In July, Kennebunkport, Maine is warm: daytime highs average 25 °C, and nights cool down to about 19 °C. The sea averages 17.1 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 8 hours a day. Rain is frequent, with about 10 rainy days and 83 mm in total. All in all, July is a good month for a holiday in Kennebunkport, Maine.

Kennebunkport, Maine in July
63August24° · Sea 18° · 8 h

In August, Kennebunkport, Maine is warm: daytime highs average 24 °C, and nights cool down to about 18 °C. The sea averages 18.2 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 8 hours a day. Rain falls on about 9 days, adding up to 73 mm. All in all, August is a good month for a holiday in Kennebunkport, Maine.

Kennebunkport, Maine in August
35September21° · Sea 16° · 7 h

In September, Kennebunkport, Maine is mild: daytime highs average 21 °C, and nights cool down to about 15 °C. The sea averages 16.4 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain falls on about 8 days, adding up to 81 mm. All in all, September is not an ideal month for a holiday in Kennebunkport, Maine.

Kennebunkport, Maine in September
20October14° · Sea 13° · 5 h

In October, Kennebunkport, Maine is cool: daytime highs average 14 °C, and nights cool down to about 9 °C. The sea averages 13.0 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 110 mm in total. All in all, October is not an ideal month for a holiday in Kennebunkport, Maine.

Kennebunkport, Maine in October
18November9° · Sea 10° · 4 h

In November, Kennebunkport, Maine is cold: daytime highs average 9 °C, and nights cool down to about 3 °C. The sea averages 9.8 °C – swimming is only for the hardy. Expect around 4 hours of sunshine a day. Rain falls on about 9 days, adding up to 83 mm. All in all, November is not an ideal month for a holiday in Kennebunkport, Maine.

Kennebunkport, Maine in November
14December4° · Sea 8° · 4 h

In December, Kennebunkport, Maine is cold: daytime highs average 4 °C, and nights often drop below freezing (−2 °C). The sea averages 7.5 °C – swimming is only for the hardy. Expect around 4 hours of sunshine a day. Precipitation, often as snow, falls on about 10 days, totalling 111 mm. Snow falls on about 4 days. All in all, December is not an ideal month for a holiday in Kennebunkport, Maine.

Kennebunkport, Maine in December
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Kennebunkport, Maine compared

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Kennebunkport vs. Portland

In October the holiday weather in Kennebunkport and Portland is about equally good (score 20 vs. 20). During the day it is about as warm in Portland as in Kennebunkport. The sea is about equally warm.

Kennebunkport vs. Portland, in October
in OctoberKennebunkportPortland
Holiday score2020
Daytime high14°14°
Sea13°13°
Sunshine5 h5 h
Rainy days1010
Best timeJul – AugJul – Aug

Through the year

OctoberKennebunkport 14°Portland 14°
KennebunkportPortland
Go to Portland, Maine
Ranking

USA in October: the best places

In October, Kennebunkport, Maine ranks 26 among the 31 nearest destinations in this country.

  1. Raleigh22°84
  2. 2Richmond21°82
  3. 3Washington20°19°81
  4. 4Philadelphia19°18°79
  5. 5Baltimore19°18°79
  6. 6New York18°18°77
  7. 7Providence17°17°70
  8. 8Pittsburgh18°69
  9. 26KennebunkportThis page14°13°20
All destinations: USA

Planning a trip to Kennebunkport, Maine

Weather for your travel dates

Pick your arrival and length of stay, and we sum up the weather to expect.

Kennebunkport, Maine in the school holidays

How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.

Kennebunkport, Maine has its best school-holiday weather during the summer holidays (score 62) and its weakest during the Christmas holidays (score 16).

  • Easter holidays

    Mar – Apr

    23

    Poor

    • 9 °C by day
    • Sea 5 °C
    • 6.5 h of sun a day
    • 10 rainy days a month

    Keep in mind: Snow

  • May half-term

    May – Jun

    27

    Poor

    • 17 °C by day
    • Sea 10 °C
    • 7.2 h of sun a day
    • 10 rainy days a month

    Good for: Sightseeing & walks

  • Summer holidays

    Jul – Aug

    62

    GoodBest holidays

    • 24 °C by day
    • Sea 18 °C
    • 7.8 h of sun a day
    • 9 rainy days a month

    Good for: Sightseeing & walks

  • October half-term

    Oct

    20

    Poor

    • 14 °C by day
    • Sea 13 °C
    • 5.3 h of sun a day
    • 10 rainy days a month
  • Christmas holidays

    Dec – Jan

    16

    Poor

    • 2 °C by day
    • Sea 7 °C
    • 4.3 h of sun a day
    • 10 rainy days a month

    Keep in mind: Snow

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 6 h 40 min
Distance
5,140 km
Time zone
UTC−4
Jet lag
About 3 days (5 h west)

Rule of thumb for flying west: for a few days before, stay up a little later, and get afternoon and evening light at your destination.

Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.

Frequently asked questions about Kennebunkport, Maine

When is the best time to visit Kennebunkport, Maine?

The best time to visit Kennebunkport, Maine is from July to August. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.

How warm is the sea in Kennebunkport, Maine?

The sea temperature in Kennebunkport, Maine ranges from 3.9 °C in March to 18.2 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.

Can you swim in Kennebunkport, Maine in October?

Only if you don't mind cold water: in October the sea averages just 13.0 °C. Comfortable swimming temperatures are not reached at any time of year.

What is the warmest month in Kennebunkport, Maine?

July is the warmest month, with average highs of 25 °C and nights around 19 °C. January is the coolest month at 0 °C.

When does it rain most in Kennebunkport, Maine?

The wettest month is December with 111 mm of precipitation. The driest month is August with 73 mm.

How many hours of sunshine does Kennebunkport, Maine get?

Kennebunkport, Maine gets around 2,230 hours of sunshine a year. The sunniest month is July with 8.1 hours a day; in December there are 4.0 hours a day.

What time zone is Kennebunkport, Maine in?

Kennebunkport, Maine uses the time zone America/New_York: UTC−5 in January and UTC−4 in July.

How long is the flight from London to Kennebunkport, Maine?

A nonstop flight from London to Kennebunkport, Maine takes about 6 h 40 min, for a straight-line distance of about 5,140 km.

Which school holidays are best for Kennebunkport, Maine?

Kennebunkport, Maine has its best school-holiday weather during the summer holidays (score 62) and its weakest during the Christmas holidays (score 16). Holiday ratings (0–100): Easter holidays 23, May half-term 27, Summer holidays 62, October half-term 20, Christmas holidays 16.

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