Weather in Perth, Australia in September

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Visiting Perth, Australia in September

The weather in September is marginally warmer than the previous month and temperatures continue to rise quickly into October. September has average maximum temperatures of 20°C (68°F) which is nice and warm and makes sunbathing pleasant on clear days. The sunshine percentage is 57.5% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.8 hours of sunshine per day. It is a good time for sunbathing in Perth.

September has total rainfall of 19.4cm (7.6inches) making it a bit rainy but with only moderate showers. There are 15.7 days with some rainfall so you can still enjoy the beach on the clear days.

Sea temperatures are a cold 17°C (62°F). September is too cold for swimming in Perth for any length of time, unless you have a wetsuit. The sea temperature in September is slightly cooler than the previous month.

Consider visiting Perth in the months of January, February, March, December, for the best beach weather. Also consider one of our other suggestions for September.

Can you sunbathe in Perth in September?

Yes, September is a good time for sunbathing in Perth.

September has average maximum temperatures of 20°C (68°F) which is nice and warm and makes sunbathing pleasant on clear days. The sunshine percentage is 57.5% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.8 hours of sunshine per day. September has total rainfall of 19.4cm (7.6inches) making it a bit rainy but with only moderate showers. There are 15.7 days with some rainfall so you can still enjoy the beach on the clear days.

More about September temperature and sunshine.

Can you swim in Perth in September?

No, September is too cold for swimming in Perth for any length of time, with the sea water at 17°C (62°F), unless you have a wetsuit.

More about September sea temperatures.

Is September a good time to holiday in Perth?

Yes, September is a good time for a holiday in Perth.

September has average maximum temperatures of 20°C (68°F) which is nice and warm and makes sunbathing pleasant on clear days. The sunshine percentage is 57.5% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.8 hours of sunshine per day. September has total rainfall of 19.4cm (7.6inches) making it a bit rainy but with only moderate showers. There are 15.7 days with some rainfall so you can still enjoy the beach on the clear days. It is a good time for sunbathing in Perth. Sea temperatures are a cold 17°C (62°F). September is too cold for swimming in Perth for any length of time, unless you have a wetsuit.

More about the September temperatures and sunshine.

Is Perth warm in September?

Yes, Perth is nice and warm and makes sunbathing pleasant on clear days in September.

The average maximum temperature in Perth in September is 20°C (68°F). The average maximum temperature is 19°C (67°) in the previous month and 24°C (75°F) in the next month.

The average temperature in Perth in September is 14°C (58°F). The average temperature is 14°C (56°F) in the previous month and 17°C (63°F) in the next month.

More info about the September temperatures and sunshine.

How sunny is Perth in September?

The average day light hours per day in Perth in September are 11.9. The sunshine percentage is 57.5% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.8 hours of sunshine per day.

More about September sunshine.

Temperature in Perth in September

The weather in September is marginally warmer than the previous month and temperatures continue to rise quickly into October. The average maximum temperature in Perth in September is 20°C (68°F). The average maximum temperature is 19°C (67°F) in the previous month and 24°C (75°F) in the next month.

The average temperature in Perth in September is 14°C (58°F). The average temperature is 14°C (56°F) in the previous month and 17°C (63°F) in the next month.

The average minimum temperature in Perth in September is 9°C (47°F). The minimum temperature is 8°C (46°F) in the previous month and 11°C (51°F) in the next month.

Sunshine in Perth in September

The days in September are longer than the previous month and the days continue to get slightly longer into October. September has slightly more hours of sunshine than the previous month and hours of sunshine continue to rise into October. During September the average day light hours are 11.9 per day in Perth. The sunshine percentage is 57.5% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.8 hours of sunshine per day.

The ultraviolet index in Perth in September is typically 7.5 during September. An ultraviolet index reading of 8 to 10 indicates a very high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 15 minutes. Take extra precautions because unprotected skin and eyes will be damaged and can burn quickly. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in Perth in September

The average sea water temperature in Perth in September is 16.6°C (61.9°F) which is cool for swimming, shorty wetsuit may help you extend your time in the water. The sea temperature in September is slightly cooler than the previous month.

Rainfall in Perth in September

September weather is much drier than the previous month and rainfall continues to drop markedly into October. September has a few more days of rain than the previous month. The average total rainfall in Perth in September is 19.4cm (7.6inches) and on average there are 15.7 rainy days in September making it a wet time to visit the beach.

Humidity in Perth in September

The maximum dew point (an indicator of humidity) in Perth in September is 11°C (53°F) which is very comfortable. The dew point is 11°C (52°F) in the previous month and 12°C (12°F) in the next month.

The average maximum relative humidity in Perth in September is typically 94.8%. The maximum relative humidity is 95.7% in the previous month and 91.3% in the next month.

The average relative humidity in Perth in September is typically 68.9%. The average relative humidity is 72.7% in the previous month and 62.2% in the next month.

Wind Speed in Perth in September

The average maximum wind speed in Perth in September is typically 31KM/H (19MPH). The average maximum wind speed is 28KM/H (18MPH) in the previous month and 32KM/H (20MPH) in the next month.

The average wind speed in Perth in September is typically 16KM/H (10MPH). The average wind speed is 14KM/H (9MPH) in the previous month and 16KM/H (10MPH) in the next month.

The average wind direction in Perth in September is from the West-Northwest.

Monthly Averages

Suggested Beaches in September

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Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.

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Need Inspiration?

Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.