Popham Beach Water Temperature
Sea-surface temperature at Popham 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 | 54° / 45° | 0 | 93% |
| Wed, Oct 14 | 66° / 54° | 3 | 77% |
| Thu, Oct 15 | 55° / 45° | 4 | 0% |
| Fri, Oct 16 | 59° / 43° | 0 | 88% |
| Sat, Oct 17 | 49° / 34° | 4 | 34% |
| Sun, Oct 18 | 46° / 30° | 3 | 1% |
| Mon, Oct 19 | 52° / 33° | 3 | 3% |
Sea-surface temperature and wave data from the Open-Meteo marine model; weather from Open-Meteo.
Is Popham Beach warm enough to swim?
At 57°F, the water at Popham Beach is cold — not recommended for swimming. 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 right on the October average of 57°F for this 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.
Frequently asked questions
How warm is the water at Popham Beach right now?
The sea-surface temperature is about 57°F. That is right on the October average of 57°F for this beach.
When is the water warm enough to swim at Popham 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 Popham Beach?
Around 66°F in August, based on 2023–2025 records. The coolest month is February at roughly 39°F.