Hottest (avg)
#9 / 12
Adelaide in September
September weather, climate averages, and packing tips.
Avg High
Avg Low
Rain
Daylight 12h
What to expect
September marks a typically mild period of spring, where the weather is warming up. Daytime highs average 17°C / 63°F, dropping to 10°C / 50°F at night.
Skies are often changeable, and you should be prepared for regular rainfall (approx. 12 wet days).
September in context
How it compares to the rest of the year in Adelaide.
Wettest (avg)
#5 / 12
Daylight Hours
#7 / 12
Windiest (avg)
#2 / 12
Highest UV
#7 / 12
Most Humid
#5 / 12
Temperature
- Daytime high
-
- Nighttime low
-
- Feels like (avg)
-
Sunshine
- Daylight
- 11.9 hours
- UV index (max)
- 7
- Typical sun hours
- 07:14 – 19:06
Rain & Snow
- Total
-
- Rainy days
- 12
- Cloud cover
- 47%
- Snowfall
-
Humidity & Wind
- Humidity (avg)
- 70%
- Wind (avg)
-
- Wind (max gusts)
-
Frequently asked questions
Is September a good time to visit Adelaide?
Typical September days in Adelaide reach highs of 17°C (63°F) with nights around 10°C (50°F). It usually feels mild by day and cool after dark. Overall, September sits in the middle of the Adelaide climate range.
What are temperatures like in September?
In September, you can usually expect highs of 17°C (63°F) and lows near 10°C (50°F). That means mild days and cool nights, so pack layers you can add or remove.
How much does it rain in September?
Rainfall in September averages 52 mm (2.0 in) across roughly 12 days. Overall it is a quite rainy time of year, so a light rain jacket and waterproof shoes are very handy.
How many hours of daylight are there in September?
You can expect about 12 hours of daylight in September. Sunrise is typically around 07:14 and sunset near 19:06. Daylight is fairly typical, with enough time for sightseeing.
Does the weather change during September?
September often starts off a little cooler and becomes noticeably warmer by the end of the month.
How strong is the sun in September?
UV levels are often high (around 7). Regular sunscreen and a hat are recommended.
Is it windy in September?
In September, average wind speeds are around 17 km/h (11 mph), with gusts on the windiest days reaching about 63 km/h (39 mph). On the ground, it is it is a notably windy place, and strong gusts are fairly common.