Northern Territory, Australia
Timor Sea12.45°S, 130.82°EStation AU-NOR-CUL

Cullen Beach Sea Water Temperature

A tropical beach on the Timor Sea, warmest around December at about 31.1°C. Today's reading, 7-day forecast, and monthly averages below.

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Water Temperature NowBuoy & Sentinel-3 SST

Cullen Beach water temperature

28
82.4°FTropical Warm (> 28°C)

Very warm bath-like water. Zero chill, exceptional for relaxation and snorkeling.

+0°vs Sep avgTimor Sea12.45°S, 130.82°E
Activity Index:SwimmingSnorkelingSurfingTypical conditions
Marine Atmosphere Grid Live Marine Feed
Coastal Air
30°C
85.1°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
28°C
82.4°F
Waves: 1m
Tropical
ThuOct 1
28.3°C
82.9°F
Waves: 0.9m
Tropical
FriOct 2
28.4°C
83.1°F
Waves: 0.7m
Tropical
SatOct 3
28.3°C
82.9°F
Waves: 0.6m
Tropical
SunOct 4
28°C
82.4°F
Waves: 0.7m
Tropical
MonOct 5
27.7°C
81.9°F
Waves: 0.9m
Warm
TueOct 6
27.6°C
81.7°F
Waves: 1m
Warm
Forecast cooling trend: -0.4°C over 7 days at Cullen Beach.
Confidence: High

Cullen Beach Monthly Water Temperature Averages

Historical monthly climatology. The warmest water in Cullen Beach occurs inJanuary, February, March, April, May, June, July, August, September, October, November, December — peaking at31.1°C (88°F) in December.

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

Hover a bar for details
Current month Comfortable (20–24°C) Warm (24°C+) Cool (<20°C)
30
Jan
30
Feb
30
Mar
30
Apr
29
May
27
Jun
26
Jul
26
Aug
Current
28
Sep
30
Oct
31
Nov
31
Dec
Full 12-month data table — min / avg / max & swimming comfort
MonthMin Water TempAverage Water TempMax Water TempSwimming Comfort
January29°C30.1°C31.3°CTropical Warm (> 28°C)
February28.4°C29.9°C31.1°CTropical Warm (> 28°C)
March28.3°C30.1°C31.4°CTropical Warm (> 28°C)
April28.5°C30.1°C31.4°CTropical Warm (> 28°C)
May26.6°C28.8°C30.6°CTropical Warm (> 28°C)
June24.4°C26.8°C29.8°CWarm & Ideal (24°C – 28°C)
July24.1°C25.8°C28.1°CWarm & Ideal (24°C – 28°C)
August25.1°C26.3°C27.7°CWarm & Ideal (24°C – 28°C)
SeptemberCurrent26.6°C28°C29°CTropical Warm (> 28°C)
October28.1°C29.9°C31.1°CTropical Warm (> 28°C)
November29.7°C30.8°C31.6°CTropical Warm (> 28°C)
December29.4°C31.1°C32.1°CTropical Warm (> 28°C)

Swimming FAQs for Cullen Beach

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

Typical sea surface temperature in Cullen Beach this time of year is 28°C (82.4°F) — classified as Tropical Warm (> 28°C). Very warm bath-like water. Zero chill, exceptional for relaxation and snorkeling. Live readings load automatically.

What are the warmest months for swimming in Cullen Beach?

The highest water temperatures in Cullen Beach typically occur duringJanuary, February, March, April, May, June, July, August, September, October, November, December, when monthly averages reach peak seasonal levels.

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

Historically in September, water temperatures in Cullen Beach average around28°C (82.4°F), fluctuating between a recorded minimum of 26.6°C and a maximum of 29°C.

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