Gymea Bay
Australia
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Gymea Bay, Australia

Sea temperature

With an average sea temperature of 18.4°C (65.1°F), Septiembre is the month with the coldest seawater in Gymea Bay, Australia.
Note: Swimming in 18.4°C (65.1°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

Daylight

The average length of the day in Septiembre is 11.9h.

What is the month with the coldest sea water in Gymea Bay?

The month with the coldest seawater in Gymea Bay is Septiembre, with an average sea temperature of 18.4°C (65.1°F).

What is the sea water temperature in Septiembre in Gymea Bay?

In Gymea Bay, the average seawater temperature in Septiembre is 18.4°C (65.1°F). For swimming, a surface water temperature of 18.4°C (65.1°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

What is the average length of the day in Septiembre in Gymea Bay?

In Septiembre, the average length of the day is 11.9h.
Average sea temperature in September - Gymea Bay, Australia
  • Average sea temperature in September: 18.4°C

The best month for swimming (with the highest average sea temperature) is February (23.8°C).
The coldest month (with the lowest average sea temperature) is September (18.4°C).

Average daylight in September - Gymea Bay, Australia
  • Average daylight in September: 11.9h

The month with the longest days is December (Average daylight: 14.4h).
The month with shortest days is June (Average daylight: 9.9h).