Can I swim at Popham Beach right now?

The sea at Popham Beach is currently 15.9°C — cold swimming conditions. Most swimmers will find the water comfortable when it's above 22°C; below 18°C feels fresh and a wetsuit is recommended.

What will the sea temperature be at Popham Beach next week?

Based on long-term June averages and the latest marine model, expect the sea around Popham Beach to sit close to 27.4°C over the next 7 days. Check the live 7-day chart above for the exact daily outlook.

When is the best month to swim at Popham Beach?

July – August – September are typically the warmest months to swim at Popham Beach, with sea temperatures at their seasonal peak.

Do I need a wetsuit at Popham Beach?

With water currently at 15.9°C: above 22°C no wetsuit needed; 18–22°C a shorty is comfortable for long swims; 14–18°C a 3/2mm full suit; below 14°C a 4/3mm or thicker.

United States

Maine · Atlantic Ocean

Popham Beach

Iconic Maine beach at mouth of Kennebec.

Cool water with a light chop and glassy wind — fresh conditions — a wetsuit is recommended.

View on map OpenStreetMap Directions

Sea temperature now

15.9°Cmild

Fair

Updated just now · Source: Open-Meteo Marine

Air temperature

15.0°C

Wave height

0.6 m

Wind

2.5 km/h

UV index

0.3 UV index

Location

Popham Beach on the map, with nearby beaches and live sea temperatures.

7-day forecast

Water, air, waves, wind and UV outlook for the week ahead.

Wetsuit recommendation

4/3mm fullsuit

At 15.9°C you need a 4/3mm fullsuit, and many surfers add neoprene boots.

+ Optional 3mm boots

Surf & watersports

Cool water — the classic UK/Atlantic spring or Pacific Northwest summer range. A 4/3mm sealed-seam suit keeps you in the water for 90+ minutes. Boots prevent foot pain on rocky entries and extend session length.

Open-water swimming

Acclimatised swimmers manage 30 minutes; a thicker swim wetsuit (3/2) helps.

Recommendation tuned for Popham Beach's current water temperature. Individual tolerance, wind chill, and session length all matter — when in doubt, size up.

Quick answer

Can I swim at Popham Beach today?

The sea is currently 15.9°C — fair swimming conditions. Acclimatised swimmers will be most comfortable.

Key takeaways

• Located in Maine, United States (Atlantic Ocean).
• Family friendly with calm, accessible water.
• Live data refreshed hourly from Open-Meteo Marine.

Monthly sea temperature averages

Tap any month to see what to expect — based on regional climatology.

Jan18°C Feb18°C Mar19°C Apr21°C May23°CBest Jun26°CBest Jul28°CBest Aug28°CBest Sep27°CBest Oct25°CBest Nov22°CBest Dec19°C

18°C → 28°C· Current month outlined· “Best” = within 2°C of the annual peak

Year-round sea temperature

Best swim months: Apr – May – Jun – Jul – Aug – Sep – Oct – Nov

Month	Sea	Comfort
Jan	18°C	Pleasant
Feb	18°C	Pleasant
Mar	19°C	Pleasant
Apr	21°C	Pleasant
May	23°C	Warm
Jun	26°C	Hot
Jul ⭐	28°C	Hot
Aug	28°C	Hot
Sep	27°C	Hot
Oct	25°C	Warm
Nov	22°C	Warm
Dec	19°C	Pleasant

Can you swim here? — Popham Beach