Illinois, United States
James Bay42.31°N, 87.95°WStation UN-ILL-IND

Independence Grove Beach Sea Water Temperature

A cool beach on the James Bay, warmest around August at about 22°C. Today's reading, 7-day forecast, and monthly averages below.

Live readings · auto-updating
Water Temperature NowBuoy & Sentinel-3 SST

Independence Grove Beach water temperature

19.5
67.1°FCool / Refreshing (16°C – 20°C)

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

+0°vs Sep avgJames Bay42.31°N, 87.95°W
Activity Index:SwimmingSnorkelingSurfingTypical conditions
Marine Atmosphere Grid Live Marine Feed
Coastal Air
21°C
69.8°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
19.5°C
67.1°F
Waves: 1m
Refreshing
ThuOct 1
19.8°C
67.6°F
Waves: 0.9m
Refreshing
FriOct 2
19.9°C
67.8°F
Waves: 0.7m
Refreshing
SatOct 3
19.8°C
67.6°F
Waves: 0.6m
Refreshing
SunOct 4
19.5°C
67.1°F
Waves: 0.7m
Refreshing
MonOct 5
19.2°C
66.6°F
Waves: 0.9m
Refreshing
TueOct 6
19.1°C
66.4°F
Waves: 1m
Refreshing
Forecast cooling trend: -0.4°C over 7 days at Independence Grove Beach.
Confidence: High

Independence Grove Beach Monthly Water Temperature Averages

Historical monthly climatology. The warmest water in Independence Grove Beach occurs inJuly, August, September, October — peaking at22°C (71.6°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)
4
Jan
2
Feb
2
Mar
4
Apr
7
May
14
Jun
20
Jul
22
Aug
Current
20
Sep
14
Oct
9
Nov
6
Dec
Full 12-month data table — min / avg / max & swimming comfort
MonthMin Water TempAverage Water TempMax Water TempSwimming Comfort
January1.5°C3.8°C5.9°CVery Cold (< 16°C)
February0.1°C2.4°C4°CVery Cold (< 16°C)
March0°C2.2°C5.2°CVery Cold (< 16°C)
April1.8°C3.6°C6°CVery Cold (< 16°C)
May2.8°C6.9°C16.2°CVery Cold (< 16°C)
June5.3°C13.6°C19.8°CVery Cold (< 16°C)
July14.9°C20.3°C24.5°CComfortable (20°C – 24°C)
August20°C22°C24.7°CComfortable (20°C – 24°C)
SeptemberCurrent16.3°C19.5°C22.1°CCool / Refreshing (16°C – 20°C)
October9.7°C14.4°C19.4°CVery Cold (< 16°C)
November5.2°C9°C13.1°CVery Cold (< 16°C)
December2.6°C5.5°C8.3°CVery Cold (< 16°C)

Swimming FAQs for Independence Grove Beach

Is the sea warm enough to swim in Independence Grove Beach today?

Typical sea surface temperature in Independence Grove Beach this time of year is 19.5°C (67.1°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 Independence Grove Beach?

The highest water temperatures in Independence Grove Beach typically occur duringJuly, August, September, October, when monthly averages reach peak seasonal levels.

What is the typical water temperature in Independence Grove Beach in September?

Historically in September, water temperatures in Independence Grove Beach average around19.5°C (67.1°F), fluctuating between a recorded minimum of 16.3°C and a maximum of 22.1°C.

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Independence Grove Beach Coastal Zone Map

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