Exmouth Sea Temperature
Updated Wed 11:46 (Australia/Brisbane)
Australia · Forecast updated Aug 12, 2026, 11:46 UTC
Current Sea Temperature
21.5°C
70.7°F
Cool water
Versus this month's average
Close to average
The August average in our archive is 21.4°C (70.6°F).
Recent trend
At least two weeks of records are needed before showing a reliable trend.
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 Exmouth, monthly averages range from about 21.4°C (70.6°F) in August to 21.4°C (70.6°F) in August.
Over the past 30 days, the average sea temperature in Exmouth has been 21.6°C.
Monthly Water Temperature Averages
Southern Hemisphere. Summer is generally December–February; winter is June–August.
| Month | Min | Average | Max |
|---|---|---|---|
| August | 21.2°C / 70.2°F | 21.4°C / 70.6°F | 21.8°C / 71.2°F |
Profile calculated from 92 hourly forecast records across 1 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Exmouth
Ningaloo gateway with shore-access reef, turtles and seasonal whale sharks.
- Area
- Western Australia
Exmouth Water Temperature: Common Questions
What is the sea temperature in Exmouth today?
The current sea surface temperature in Exmouth is 21.5°C. Over the last 30 days, the average has been 21.6°C.
When is the water warmest in Exmouth?
The warmest monthly average in the Exmouth archive is August, at around 21.4°C (70.6°F).
When is the water coldest in Exmouth?
The coldest monthly average in the archive is August, at around 21.4°C (70.6°F).
Can you swim in Exmouth today?
At 21.5°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 Exmouth.
View Snorkel Forecast →