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Sea Temperature in Cottesloe in September
Complete information on the sea temperature range in the Indian Ocean in Cottesloe in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Cottesloe. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Water Temperature Range in Cottesloe in September
61°F
MINIMUN
65°F
AVERAGE
70°F
MAXIMUM
Historical Data of Water Temperature in September in Cottesloe
Water Temperature Chart for Indian Ocean in Cottesloe in September
Sea Temperature Table in Cottesloe in September Over the Past Years
Day | 2024 | 2023 | 2022 | Average |
---|---|---|---|---|
Sep 1 | 66°C | 66°C | 68°C | 67°C |
Sep 2 | 64°C | 64°C | 66°C | 65°C |
Sep 3 | 64°C | 66°C | 66°C | 65°C |
Sep 4 | 64°C | 64°C | 66°C | 65°C |
Sep 5 | 66°C | 66°C | 66°C | 66°C |
Sep 6 | 66°C | 66°C | 66°C | 66°C |
Sep 7 | 64°C | 66°C | 66°C | 65°C |
Sep 8 | 66°C | 66°C | 66°C | 66°C |
Sep 9 | 64°C | 66°C | 66°C | 66°C |
Sep 10 | 66°C | 68°C | 66°C | 66°C |
Sep 11 | 66°C | 68°C | 66°C | 66°C |
Sep 12 | 66°C | 66°C | 66°C | 66°C |
Sep 13 | 66°C | 68°C | 66°C | 66°C |
Sep 14 | 66°C | 68°C | 66°C | 67°C |
Sep 15 | 66°C | 68°C | 68°C | 67°C |
Sep 16 | 66°C | 68°C | 66°C | 67°C |
Sep 17 | 66°C | 66°C | 66°C | 66°C |
Sep 18 | 66°C | 68°C | 66°C | 67°C |
Sep 19 | 64°C | 66°C | 66°C | 66°C |
Sep 20 | 64°C | 66°C | 68°C | 66°C |
Sep 21 | 64°C | 66°C | 66°C | 66°C |
Sep 22 | 66°C | 64°C | 66°C | 66°C |
Sep 23 | 66°C | 64°C | 66°C | 65°C |
Sep 24 | 64°C | 64°C | 66°C | 65°C |
Sep 25 | 66°C | 66°C | 64°C | 65°C |
Sep 26 | 66°C | 66°C | 64°C | 65°C |
Sep 27 | 66°C | 66°C | 64°C | 65°C |
Sep 28 | 64°C | 64°C | 64°C | 64°C |
Sep 29 | 66°C | 66°C | 66°C | 66°C |



Cottesloe Climate and Swimming Opportunities in September
68°F
Average Day Air Temperature
50°F
Average Night Air Temperature
3 in
Precipitation Amount per Month
13 days
Number of Rainy Days
12 hrs
Daylight
per Day
7 hrs
Sunshine
per Day
10 mph
Average Wind Speed
62%
Average
humidity
Cottesloe lies within the Western Australia in Australia. The average daytime temperature in Cottesloe in September is 20°C (67°F), while the nighttime average is 10°C (50°F). There are typically 13 rainy days during the month, with a total precipitation of 76 mm (3.0 inches). The daylight duration in September in Cottesloe is 12 hours, with an average of 7 hours of sunshine per day. The average wind speed in September is 17 km/h (11 mph), and the humidity level is around 62%.
The water temperature in Cottesloe in September ranges from 18°C to 19°C (64°F to 66°F). At the beginning of the month, the average temperature is around 19°C (66°F), shifting to 19°C (66°F) by mid-September and reaching 19°C (66°F) in the last ten days. Overall, the average sea temperature in Cottesloe for September is 19°C (66°F). Ideal conditions for a refreshing swim, though some may still find it a bit cool.
Sea Temperature in September in Nearby Cities
Frequently Asked Questions About Water Temperatures in September in Cottesloe
What is the sea temperature in Cottesloe in September?
The water temperature in the Indian Ocean in Cottesloe in September ranges from 18°C to 19°C (64°F to 66°F).
Is it possible to swim in the Indian Ocean in Cottesloe in September?
The average sea temperature in Cottesloe in September is 19°C (66°F), and the air temperature is 20°C (67°F), so ideal conditions for a refreshing swim, though some may still find it a bit cool.