Fremantle — Water Temperature in July

Water Temperature Range

17°C

minimum

20°C

average

22°C

maximum

Water Temperature Chart for July

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

	2025	2024	2023	2022
JUL 1	20°C	19°C	20°C	21°C
JUL 2	20°C	19°C	20°C	20°C
JUL 3	19°C	19°C	20°C	20°C
JUL 4	20°C	19°C	20°C	21°C
JUL 5	20°C	20°C	21°C	21°C
JUL 6	21°C	20°C	21°C	22°C
JUL 7	20°C	19°C	21°C	21°C
JUL 8	21°C	20°C	21°C	21°C
JUL 9	20°C	20°C	20°C	21°C
JUL 10	20°C	20°C	21°C	21°C
JUL 11	21°C	19°C	21°C	21°C
JUL 12	21°C	19°C	21°C	22°C
JUL 13	21°C	20°C	20°C	22°C
JUL 14	20°C	19°C	20°C	22°C
JUL 15	20°C	20°C	20°C	21°C
JUL 16	20°C	19°C	20°C	19°C
JUL 17	20°C	19°C	20°C	21°C
JUL 18	21°C	20°C	20°C	21°C
JUL 19	20°C	19°C	20°C	21°C
JUL 20	19°C	19°C	20°C	20°C
JUL 21	20°C	19°C	21°C	20°C
JUL 22	20°C	19°C	20°C	21°C
JUL 23	20°C	19°C	19°C	20°C
JUL 24	19°C	18°C	20°C	20°C
JUL 25	20°C	19°C	20°C	20°C
JUL 26	20°C	19°C	20°C	20°C
JUL 27	20°C	19°C	20°C	20°C
JUL 28	19°C	18°C	20°C	20°C
JUL 29	20°C	19°C	20°C	20°C
JUL 30	20°C	18°C	20°C	19°C
JUL 31	19°C	19°C	20°C	20°C

Climate and Swimming Opportunities in Fremantle in July

Average Day Air Temperature

18°C

Average Night Air Temperature

9°C

Precipitation Amount per Month

153 mm

Number of Rainy Days

Daylight per Day

10 hrs

Sunshine per Day

5 hrs

Average Wind Speed

15 km/h

Average Humidity

71%

With such a ratio between the average monthly temperatures of water and air, swimming can feel slightly cool at first but still quite doable. It’s more comfortable if the sun is out, and you may want a towel or hoodie right after.