South Australia, Australia
Coastal Waters37.64°S, 140.20°EStation AU-SOU-GEL

Geltwood Beach Sea Water Temperature

A temperate beach on the Coastal Waters, warmest around February at about 17.2°C. Today's reading, 7-day forecast, and monthly averages below.

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

Geltwood Beach water temperature

14.2
57.6°FVery Cold (< 16°C)

Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges.

+0°vs Sep avgCoastal Waters37.64°S, 140.20°E
Activity Index:SwimmingSnorkelingSurfingTypical conditions
Marine Atmosphere Grid Live Marine Feed
Coastal Air
16°C
60.3°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
14.2°C
57.6°F
Waves: 1m
Very Cold
ThuOct 1
14.5°C
58.1°F
Waves: 0.9m
Very Cold
FriOct 2
14.6°C
58.3°F
Waves: 0.7m
Very Cold
SatOct 3
14.5°C
58.1°F
Waves: 0.6m
Very Cold
SunOct 4
14.2°C
57.6°F
Waves: 0.7m
Very Cold
MonOct 5
13.9°C
57°F
Waves: 0.9m
Very Cold
TueOct 6
13.8°C
56.8°F
Waves: 1m
Very Cold
Forecast cooling trend: -0.4°C over 7 days at Geltwood Beach.
Confidence: High

Geltwood Beach Monthly Water Temperature Averages

Historical monthly climatology. The warmest water in Geltwood Beach occurs inJanuary, February, March, April — peaking at17.2°C (63°F) in February.

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

Hover a bar for details
Current month Comfortable (20–24°C) Warm (24°C+) Cool (<20°C)
17
Jan
17
Feb
17
Mar
16
Apr
16
May
16
Jun
15
Jul
15
Aug
Current
14
Sep
15
Oct
15
Nov
16
Dec
Full 12-month data table — min / avg / max & swimming comfort
MonthMin Water TempAverage Water TempMax Water TempSwimming Comfort
January14.4°C17°C19.2°CCool / Refreshing (16°C – 20°C)
February16°C17.2°C18.8°CCool / Refreshing (16°C – 20°C)
March14.7°C16.6°C18.1°CCool / Refreshing (16°C – 20°C)
April14.5°C16.4°C18.1°CCool / Refreshing (16°C – 20°C)
May13.5°C16.4°C18.2°CCool / Refreshing (16°C – 20°C)
June14.4°C15.9°C17.3°CVery Cold (< 16°C)
July12.3°C15.3°C16.5°CVery Cold (< 16°C)
August13.7°C14.6°C15.7°CVery Cold (< 16°C)
SeptemberCurrent13.4°C14.2°C15.2°CVery Cold (< 16°C)
October13°C14.6°C15.8°CVery Cold (< 16°C)
November14.1°C15.4°C17.3°CVery Cold (< 16°C)
December14.2°C16.3°C18.9°CCool / Refreshing (16°C – 20°C)

Swimming FAQs for Geltwood Beach

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

Typical sea surface temperature in Geltwood Beach this time of year is 14.2°C (57.6°F) — classified as Very Cold (< 16°C). Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges. Live readings load automatically.

What are the warmest months for swimming in Geltwood Beach?

The highest water temperatures in Geltwood Beach typically occur duringJanuary, February, March, April, when monthly averages reach peak seasonal levels.

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

Historically in September, water temperatures in Geltwood Beach average around14.2°C (57.6°F), fluctuating between a recorded minimum of 13.4°C and a maximum of 15.2°C.

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