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Sea Temperature in Perth in September
Complete information on the sea temperature range in the Indian Ocean in Perth in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Perth. 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 Perth in September
16°C
MINIMUN
18.5°C
AVERAGE
21°C
MAXIMUM
Historical Data of Water Temperature in September in Perth
Water Temperature Chart for Indian Ocean in Perth in September
Sea Temperature Table in Perth in September Over the Past Years
| Day | 2024 | 2023 | 2022 | Average |
|---|---|---|---|---|
| Sep 1 | 18°C | 19°C | 18°C | 18.3°C |
| Sep 2 | 19°C | 19°C | 21°C | 19.3°C |
| Sep 3 | 18°C | 19°C | 21°C | 19.0°C |
| Sep 4 | 19°C | 18°C | 19°C | 18.5°C |
| Sep 5 | 19°C | 18°C | 20°C | 18.8°C |
| Sep 6 | 19°C | 18°C | 21°C | 19.0°C |
| Sep 7 | 19°C | 18°C | 20°C | 18.8°C |
| Sep 8 | 18°C | 19°C | 18°C | 18.3°C |
| Sep 9 | 18°C | 19°C | 18°C | 18.3°C |
| Sep 10 | 19°C | 19°C | 18°C | 18.5°C |
| Sep 11 | 18°C | 20°C | 20°C | 19.0°C |
| Sep 12 | 18°C | 19°C | 18°C | 18.3°C |
| Sep 13 | 19°C | 20°C | 18°C | 18.8°C |
| Sep 14 | 18°C | 20°C | 18°C | 18.8°C |
| Sep 15 | 18°C | 20°C | 18°C | 18.8°C |
| Sep 16 | 19°C | 20°C | 18°C | 18.8°C |
| Sep 17 | 19°C | 20°C | 18°C | 18.8°C |
| Sep 18 | 19°C | 20°C | 18°C | 19.0°C |
| Sep 19 | 19°C | 19°C | 18°C | 18.8°C |
| Sep 20 | 19°C | 19°C | 18°C | 18.8°C |
| Sep 21 | 19°C | 19°C | 18°C | 18.8°C |
| Sep 22 | 19°C | 18°C | 18°C | 18.5°C |
| Sep 23 | 19°C | 18°C | 18°C | 18.3°C |
| Sep 24 | 19°C | 18°C | 18°C | 18.0°C |
| Sep 25 | 19°C | 18°C | 18°C | 18.3°C |
| Sep 26 | 19°C | 19°C | 20°C | 19.0°C |
| Sep 27 | 19°C | 19°C | 18°C | 18.5°C |
| Sep 28 | 18°C | 19°C | 18°C | 18.3°C |
| Sep 29 | 19°C | 19°C | 18°C | 18.5°C |
Perth Climate and Swimming Opportunities in September
20°C
Average Day Air Temperature
10°C
Average Night Air Temperature
76 mm
Precipitation Amount per Month
13 days
Number of Rainy Days
12 hrs
Daylight
per Day
7 hrs
Sunshine
per Day
17 km/h
Average Wind Speed
62%
Average
humidity
Perth lies within the Western Australia in Australia. The average daytime temperature in Perth 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 Perth 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 Perth 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 Perth 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 Perth
What is the sea temperature in Perth in September?
The water temperature in the Indian Ocean in Perth in September ranges from 18°C to 19°C (64°F to 66°F).
Is it possible to swim in the Indian Ocean in Perth in September?
The average sea temperature in Perth 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.