Kennebunk Beach Water Temperature
Sea-surface temperature at Kennebunk Beach, Maine · times in EDT
Updated 4:00 AM EDT
How it compares today
Water temperature through the year
Monthly normals computed from 2023–2025 daily sea-surface temperature history.
Nearby water right now
7-day outlook
| Day | Air high / low | Max UV | Rain |
|---|---|---|---|
| Tue, Oct 13 | 57° / 48° | 0 | 94% |
| Wed, Oct 14 | 71° / 52° | 4 | 42% |
| Thu, Oct 15 | 59° / 47° | 4 | 0% |
| Fri, Oct 16 | 63° / 48° | 1 | 83% |
| Sat, Oct 17 | 52° / 33° | 4 | 26% |
| Sun, Oct 18 | 53° / 28° | 4 | 1% |
| Mon, Oct 19 | 51° / 40° | 3 | 3% |
Sea-surface temperature and wave data from the Open-Meteo marine model; weather from Open-Meteo.
Is Kennebunk Beach warm enough to swim?
At 58°F, the water at Kennebunk Beach is chilly — wetsuit recommended. Most swimmers are comfortable without a wetsuit above 72°F; below 62°F, cold-water shock becomes a real risk for unprotected swimmers.
That is 1° above the October average of 57°F here.
The water here never averages above 70°F — even in August, the warmest month, it sits around 66°F. Most people wear a wetsuit.
Frequently asked questions
How warm is the water at Kennebunk Beach right now?
The sea-surface temperature is about 58°F. That is 1° above the October average of 57°F here.
When is the water warm enough to swim at Kennebunk Beach?
The water here never averages above 70°F — even in August, the warmest month, it sits around 66°F. Most people wear a wetsuit.
What is the warmest the water gets at Kennebunk Beach?
Around 66°F in August, based on 2023–2025 records. The coolest month is February at roughly 39°F.