Whitsundays Sea Temperature
Updated Sat 10:41 (Australia/Brisbane)
Australia · Forecast updated Aug 8, 2026, 10:41 UTC
Current Sea Temperature
20.6°C
69.1°F
Cool water
Versus this month's average
Close to average
The August average in our archive is 20.6°C (69.1°F).
Recent trend
Holding fairly steady
Seven-day average: 20.5°C, versus 20.5°C in the prior seven days.
What to wear
Cool water
A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Cold tolerance varies. Wind, session length, sunshine, and exertion also affect comfort; temperature alone does not describe sea conditions.
Sea Surface Temperature Over the Year
In the data collected for Whitsundays, monthly averages range from about 20.6°C (69.1°F) in August to 22.2°C (72.0°F) in June.
Over the past 30 days, the average sea temperature in Whitsundays has been 20.8°C.
Monthly Water Temperature Averages
| Month | Min | Average | Max |
|---|---|---|---|
| June | 21.6°C / 70.9°F | 22.2°C / 72.0°F | 23.8°C / 74.8°F |
| July | 20.4°C / 68.7°F | 21.2°C / 70.1°F | 22.1°C / 71.8°F |
| August | 20.4°C / 68.7°F | 20.6°C / 69.1°F | 21.6°C / 70.9°F |
Profile calculated from 1650 hourly forecast records across 3 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Whitsundays
Coral islands beside the Great Barrier Reef with fringing reef and white sand.
- Area
- Queensland
Whitsundays Water Temperature: Common Questions
What is the sea temperature in Whitsundays today?
The current sea surface temperature in Whitsundays is 20.6°C. Over the last 30 days, the average has been 20.8°C.
When is the water warmest in Whitsundays?
The warmest monthly average in the Whitsundays archive is June, at around 22.2°C (72.0°F).
When is the water coldest in Whitsundays?
The coldest monthly average in the archive is August, at around 20.6°C (69.1°F).
Can you swim in Whitsundays today?
At 20.6°C, the water is usually comfortable for swimming and snorkeling.
Full Snorkeling Forecast
See how today's sea temperature, wave height, wind, and tides combine into a detailed snorkeling score for Whitsundays.
View Snorkel Forecast →