Maine, United States
James Bay43.24°N, 70.59°WStation UN-MAI-LIT

Little Beach Sea Water Temperature

A cool beach on the James Bay, warmest around August at about 18.4°C. Today's reading, 7-day forecast, and monthly averages below.

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Water Temperature NowBuoy & Sentinel-3 SST

Little Beach water temperature

16.9
62.4°FCool / Refreshing (16°C – 20°C)

Invigorating and crisp. Tolerable for active swimming, but chilly for prolonged casual bathing.

+0°vs Sep avgJames Bay43.24°N, 70.59°W
Activity Index:SwimmingSnorkelingSurfingTypical conditions
Marine Atmosphere Grid Live Marine Feed
Coastal Air
18°C
65.1°F onshore
Wind Speed
12 km/h
Surface wind
Wave Height
0.8 m
Slight shore chop
Swell
0.6 m
Deep water swell
Wave Period
6 s
Peak interval
UV Index
—
Daily maximum
Sunrise
—
First morning light
Sunset
—
Golden hour close

7-Day Water Temperature Forecast

Open-Meteo ocean model
Today
WedSep 30
16.9°C
62.4°F
Waves: 1m
Refreshing
ThuOct 1
17.2°C
63°F
Waves: 0.9m
Refreshing
FriOct 2
17.3°C
63.1°F
Waves: 0.7m
Refreshing
SatOct 3
17.2°C
63°F
Waves: 0.6m
Refreshing
SunOct 4
16.9°C
62.4°F
Waves: 0.7m
Refreshing
MonOct 5
16.6°C
61.9°F
Waves: 0.9m
Refreshing
TueOct 6
16.5°C
61.7°F
Waves: 1m
Refreshing
Forecast cooling trend: -0.4°C over 7 days at Little Beach.
Confidence: High

Little Beach Monthly Water Temperature Averages

Historical monthly climatology. The warmest water in Little Beach occurs inJune, July, August, September — peaking at18.4°C (65.1°F) in August.

Year-Round Water Temperature Curve (°C / °F)

Hover a bar for details
Current month Comfortable (20–24°C) Warm (24°C+) Cool (<20°C)
6
Jan
4
Feb
4
Mar
6
Apr
10
May
14
Jun
17
Jul
18
Aug
Current
17
Sep
13
Oct
10
Nov
8
Dec
Full 12-month data table — min / avg / max & swimming comfort
MonthMin Water TempAverage Water TempMax Water TempSwimming Comfort
January4.5°C5.9°C7.9°CVery Cold (< 16°C)
February3.1°C4.3°C5.8°CVery Cold (< 16°C)
March1.7°C4°C6.1°CVery Cold (< 16°C)
April3.6°C5.8°C8.1°CVery Cold (< 16°C)
May6.6°C9.6°C15.6°CVery Cold (< 16°C)
June10.9°C14.3°C18.8°CVery Cold (< 16°C)
July13.5°C17.3°C20.5°CCool / Refreshing (16°C – 20°C)
August15.9°C18.4°C21.1°CCool / Refreshing (16°C – 20°C)
SeptemberCurrent14.6°C16.9°C20.2°CCool / Refreshing (16°C – 20°C)
October10.2°C13.4°C16.6°CVery Cold (< 16°C)
November8.2°C10°C13.3°CVery Cold (< 16°C)
December5.8°C7.8°C10.1°CVery Cold (< 16°C)

Swimming FAQs for Little Beach

Is the sea warm enough to swim in Little Beach today?

Typical sea surface temperature in Little Beach this time of year is 16.9°C (62.4°F) — classified as Cool / Refreshing (16°C – 20°C). Invigorating and crisp. Tolerable for active swimming, but chilly for prolonged casual bathing. Live readings load automatically.

What are the warmest months for swimming in Little Beach?

The highest water temperatures in Little Beach typically occur duringJune, July, August, September, when monthly averages reach peak seasonal levels.

What is the typical water temperature in Little Beach in September?

Historically in September, water temperatures in Little Beach average around16.9°C (62.4°F), fluctuating between a recorded minimum of 14.6°C and a maximum of 20.2°C.

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Little Beach Coastal Zone Map

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