September · Australia
Best time to visit Kangaroo Island in September Weather, crowds & prices
Weather in Kangaroo Island in September
Average temperature 14°C, 34 mm of rain, about 16 days with 6+ hours of sunshine and 74% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
8.7/10
Ranked #7 of 12 months
- Avg temp
- 14°C
- Rainfall
- 34 mm
- Humidity
- 74%
- Days with 6h+ sun
- 16
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Kangaroo Island scores 8.7/10 for nature and wildlife travel - ranked #7 of 12. Expect around 14°C, 34 mm of rain, and roughly 16 days with 6+ hours of sunshine this month.
Kangaroo Island holds seals, wild beaches, and eucalyptus bush-wildlife day trips from Adelaide’s coast. Best window: October-April in the Southern Hemisphere.
September ranks 7th of 12 for Kangaroo Island — one of the best windows
September averages 14°C (57°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Expect 34 mm of rain — occasional showers rather than washed-out days — alongside about 16 days with 6+ hours of sunshine and 11.8 daylight hours.
A 8.7/10 puts this among the year's best months in Kangaroo Island (7th of 12); only February scores higher, at 9.8/10.
Pack layers you can shed by midday plus one warm layer for the evening, footwear you can get muddy.
Figure on mid-season pricing, with crowds are moderate.
Frequently asked
- What is the weather like in Kangaroo Island in September?
- In September, Kangaroo Island averages 14°C, 34 mm of rain, and about 16 days with 6+ hours of sunshine. Its climate-comfort score is 8.7/10.
- Is September a good time to visit Kangaroo Island?
- September earns a 8.7/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Kangaroo Island in September?
- Expect about 34 mm of rain in September. Average humidity is 74% and there are about 16 days with 6+ hours of sunshine.
Curated in Kangaroo Island
Tickets & experiences
Things to do in Kangaroo Island
Kangaroo Island, Australia. Live activities and tours from GetYourGuide, matched to this destination.