Whitsundays Water Temperature
Updated Tue 13:07 (Australia/Brisbane)
Australia · Forecast updated Sep 22, 2026, 13:07 UTC
Current Sea Temperature
22.5°C
72.5°F
Mild water
Valid Sep 22, 2026, 13:07 (Australia/Brisbane). Source: stored Open-Meteo marine forecast. Temperature is not a safety rating or snorkel score.
Versus this month's average
0.7°C below
The typical September average is 23.2°C (73.8°F) from the historical baseline.
Recent trend
Holding fairly steady
Seven-day average: 22.4°C, versus 22.5°C in the prior seven days.
What to wear
Mild water
A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Cold tolerance varies. Wind, session length, sunshine, and exertion also affect comfort; temperature alone does not describe sea conditions or replace the snorkel forecast.
Typical Sea Temperature Over the Year
In the historical baseline for Whitsundays, typical monthly averages range from about 21.7°C (71.1°F) in August to 28.9°C (84.0°F) in February.
Over the past 30 days, the average sea temperature in Whitsundays has been 22.1°C.
Historical baseline (full year)
Southern Hemisphere. Summer is generally December–February; winter is June–August.
Typical monthly sea-surface temperature near Whitsundays, calculated from hourly observations for 2023–2025. This is not this site's forecast archive.
| Month | Typical range | Average |
|---|---|---|
| January | 27.7–29.4°C | 28.7°C / 83.7°F |
| February | 28.4–29.4°C | 28.9°C / 84.0°F |
| March | 27.8–28.3°C | 28.0°C / 82.4°F |
| April | 26.6–27.6°C | 27.0°C / 80.6°F |
| May | 23.8–24.4°C | 24.1°C / 75.4°F |
| June | 22.0–22.9°C | 22.5°C / 72.5°F |
| July | 21.6–22.2°C | 21.9°C / 71.4°F |
| August | 21.4–22.0°C | 21.7°C / 71.1°F |
| September | 22.9–23.4°C | 23.2°C / 73.8°F |
| October | 24.5–25.6°C | 25.1°C / 77.2°F |
| November | 26.1–28.2°C | 27.1°C / 80.8°F |
| December | 27.6–28.4°C | 28.1°C / 82.6°F |
Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature dataset. Nearest sea grid cell (-20.29, 149.04). Each month is the mean of yearly monthly means; the range is the lowest and highest of those yearly monthly means. Open-Meteo methodology.
Water temperature by month
Each month uses the 2023–2025 baseline. The range is the lowest and highest yearly monthly mean, not an hourly extreme.
Whitsundays in January
Typical January water temperature near Whitsundays is 28.7°C (83.7°F), with yearly monthly means from 27.7–29.4°C.
Whitsundays in February
Typical February water temperature near Whitsundays is 28.9°C (84.0°F), with yearly monthly means from 28.4–29.4°C.
Whitsundays in March
Typical March water temperature near Whitsundays is 28.0°C (82.4°F), with yearly monthly means from 27.8–28.3°C.
Whitsundays in April
Typical April water temperature near Whitsundays is 27.0°C (80.6°F), with yearly monthly means from 26.6–27.6°C.
Whitsundays in May
Typical May water temperature near Whitsundays is 24.1°C (75.4°F), with yearly monthly means from 23.8–24.4°C.
Whitsundays in June
Typical June water temperature near Whitsundays is 22.5°C (72.5°F), with yearly monthly means from 22.0–22.9°C.
Whitsundays in July
Typical July water temperature near Whitsundays is 21.9°C (71.4°F), with yearly monthly means from 21.6–22.2°C.
Whitsundays in August
Typical August water temperature near Whitsundays is 21.7°C (71.1°F), with yearly monthly means from 21.4–22.0°C.
Whitsundays in September
Typical September water temperature near Whitsundays is 23.2°C (73.8°F), with yearly monthly means from 22.9–23.4°C.
Whitsundays in October
Typical October water temperature near Whitsundays is 25.1°C (77.2°F), with yearly monthly means from 24.5–25.6°C.
Whitsundays in November
Typical November water temperature near Whitsundays is 27.1°C (80.8°F), with yearly monthly means from 26.1–28.2°C.
Whitsundays in December
Typical December water temperature near Whitsundays is 28.1°C (82.6°F), with yearly monthly means from 27.6–28.4°C.
Forecast archive (growing)
These values come from hourly forecasts SnorkelForecast has stored. They cover only months with records and do not replace the historical baseline.
| 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 | 21.0°C / 69.9°F | 22.3°C / 72.1°F |
| September | 21.6°C / 70.9°F | 22.3°C / 72.2°F | 23.3°C / 73.9°F |
Partial coverage: 4 calendar months with records. Profile calculated from 2733 hourly forecast records across 4 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 water temperature in Whitsundays today?
The current sea surface temperature near Whitsundays is 22.5°C (72.5°F). Over the last 30 days, the average has been 22.1°C.
When is the water warmest in Whitsundays?
The water is typically warmest in February, at around 28.9°C (84.0°F) in the 2023–2025 historical baseline.
When is the water coldest in Whitsundays?
The water is typically coldest in August, at around 21.7°C (71.1°F) in the same historical baseline.
Can you swim in Whitsundays today?
At 22.5°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 Whitsundays.
View Snorkel Forecast →