Ontario, Canada
James Bay42.08°N, 83.12°WStation CA-ONT-WHI

White Sands Sea Water Temperature

A cool beach on the James Bay, warmest around August at about 24.3°C. Today's reading, 7-day forecast, and monthly averages below.

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

White Sands water temperature

21.4
70.5°FComfortable (20°C – 24°C)

Pleasant and revitalizing. Great for most beachgoers and active recreational swimming.

+0°vs Sep avgJames Bay42.08°N, 83.12°W
Activity Index:SwimmingSnorkelingSurfingTypical conditions
Marine Atmosphere Grid Live Marine Feed
Coastal Air
23°C
73.2°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
21.4°C
70.5°F
Waves: 1m
Comfortable
ThuOct 1
21.7°C
71.1°F
Waves: 0.9m
Comfortable
FriOct 2
21.8°C
71.2°F
Waves: 0.7m
Comfortable
SatOct 3
21.7°C
71.1°F
Waves: 0.6m
Comfortable
SunOct 4
21.4°C
70.5°F
Waves: 0.7m
Comfortable
MonOct 5
21.1°C
70°F
Waves: 0.9m
Comfortable
TueOct 6
21°C
69.8°F
Waves: 1m
Comfortable
Forecast cooling trend: -0.4°C over 7 days at White Sands.
Confidence: High

White Sands Monthly Water Temperature Averages

Historical monthly climatology. The warmest water in White Sands occurs inJune, July, August, September — peaking at24.3°C (75.7°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)
1
Jan
1
Feb
2
Mar
7
Apr
14
May
20
Jun
24
Jul
24
Aug
Current
21
Sep
15
Oct
8
Nov
3
Dec
Full 12-month data table — min / avg / max & swimming comfort
MonthMin Water TempAverage Water TempMax Water TempSwimming Comfort
January0°C1.2°C3.6°CVery Cold (< 16°C)
February0.3°C0.8°C1.9°CVery Cold (< 16°C)
March0.8°C2.4°C7.8°CVery Cold (< 16°C)
April2.3°C6.8°C10.9°CVery Cold (< 16°C)
May9.4°C13.5°C19.6°CVery Cold (< 16°C)
June16.7°C20°C23.2°CComfortable (20°C – 24°C)
July21.7°C24.1°C26.3°CWarm & Ideal (24°C – 28°C)
August21.9°C24.3°C27.1°CWarm & Ideal (24°C – 28°C)
SeptemberCurrent17.1°C21.4°C24°CComfortable (20°C – 24°C)
October9.6°C15.2°C20.1°CVery Cold (< 16°C)
November4.1°C8.2°C13.8°CVery Cold (< 16°C)
December0°C3.3°C6.5°CVery Cold (< 16°C)

Swimming FAQs for White Sands

Is the sea warm enough to swim in White Sands today?

Typical sea surface temperature in White Sands this time of year is 21.4°C (70.5°F) — classified as Comfortable (20°C – 24°C). Pleasant and revitalizing. Great for most beachgoers and active recreational swimming. Live readings load automatically.

What are the warmest months for swimming in White Sands?

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

What is the typical water temperature in White Sands in September?

Historically in September, water temperatures in White Sands average around21.4°C (70.5°F), fluctuating between a recorded minimum of 17.1°C and a maximum of 24°C.

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White Sands Coastal Zone Map

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