Adelaide Weather in September

During September, Adelaide experiences moderate daytime temperatures of 18°C (64°F) and cooler nights around 9°C (48°F). Expect quite a bit of rainfall. Around 61 mm (2.4 in) is typical.

Rainfall in Adelaide in September

Historically, September sees about 8 days of rain, with a monthly average of 61 mm (2.4 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Adelaide in September

If you're visiting Adelaide in September, expect highs of 18°C (64°F) and overnight lows around 9°C (48°F). The difference between afternoon and evening temperatures is usually noticeable. Nights fall to 9°C (48°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Adelaide in September

With approximately 204 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

Wind Speed in Adelaide in September

Wind speeds average 5 m/s (10 knots) during September. At this speed, gentle to moderate breezes make small trees sway and the wind creates whitecaps on water bodies. Daily variations range from moderate winds to stronger breezes, creating excellent conditions for sailing, kite flying and wind sports.

Average water temperature in September

The water is 20°C (68°F) this month, a comfortable temperature that most swimmers enjoy. Warm enough to stay in without getting cold quickly.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, April, October, November and December typically offer the best weather for Adelaide.