Deception Bay — Water Temperature in August

Water Temperature Range

18°C

minimum

21°C

average

23°C

maximum

Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

Water Temperature Chart for Month

The chart shows the average daily water temperature for each day of the month based on historical data.

Table of Water Temperatures by Day of the Month for Previous Years

Day	2026	2025	2024	2023
AUG 1	-10°C	19°C	20°C	20°C
AUG 2	19°C	20°C	19°C	20°C
AUG 3	19°C	21°C	19°C	20°C
AUG 4	19°C	21°C	20°C	20°C
AUG 5	19°C	21°C	19°C	20°C
AUG 6	19°C	21°C	19°C	21°C
AUG 7	19°C	20°C	19°C	20°C
AUG 8	19°C	21°C	19°C	20°C
AUG 9	19°C	20°C	19°C	20°C
AUG 10	19°C	20°C	20°C	20°C
AUG 11	19°C	21°C	20°C	21°C
AUG 12	19°C	21°C	19°C	21°C
AUG 13	19°C	21°C	19°C	21°C
AUG 14	19°C	21°C	20°C	22°C
AUG 15	19°C	21°C	20°C	20°C
AUG 16	19°C	21°C	19°C	21°C
AUG 17	19°C	21°C	20°C	21°C
AUG 18	19°C	21°C	19°C	21°C
AUG 19	19°C	21°C	20°C	21°C
AUG 20	19°C	21°C	20°C	21°C
AUG 21	19°C	21°C	20°C	21°C
AUG 22	19°C	21°C	20°C	21°C
AUG 23	19°C	21°C	20°C	22°C
AUG 24	19°C	21°C	19°C	22°C
AUG 25	19°C	21°C	20°C	22°C
AUG 26	19°C	20°C	19°C	21°C
AUG 27	19°C	20°C	19°C	21°C
AUG 28	20°C	20°C	19°C	21°C
AUG 29	20°C	20°C	20°C	20°C
AUG 30	20°C	21°C	21°C	22°C
AUG 31	20°C	21°C	21°C	21°C

August: Climate and Swimming Opportunities

Average Night Air Temperature

9°C

Average Day Air Temperature

22°C

Precipitation Amount per Month

38 mm

Number of Rainy Days

Daylight per Day

11 hrs

Sunshine per Day

8 hrs

Average Wind Speed

14 km/h

Average Humidity

54%

With such a ratio between the average monthly temperatures of water and air, swimming feels warm and comfortable even if the day isn’t hot. The water can feel warmer than the air, so getting out may feel a bit cool.