September · Australia
Best time to visit Fremantle in September Weather, crowds & prices
Weather in Fremantle in September
Average temperature 17°C, 37 mm of rain, about 20 days with 6+ hours of sunshine and 74% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
9.2/10
Ranked #7 of 12 months
- Avg temp
- 17°C
- Rainfall
- 37 mm
- Humidity
- 74%
- Days with 6h+ sun
- 20
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Fremantle scores 9.2/10 for sightseeing and cultural travel - ranked #7 of 12. Expect around 17°C, 37 mm of rain, and roughly 20 days with 6+ hours of sunshine this month.
Fremantle's convict-built port holds markets, breweries and a maritime museum at the Swan's mouth.
September is one of the strongest months in Fremantle (7th)
September averages 17°C (62°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Expect 37 mm of rain — occasional showers rather than washed-out days — alongside about 20 days with 6+ hours of sunshine and 11.8 daylight hours.
A 9.2/10 puts this among the year's best months in Fremantle (7th of 12); only November scores higher, at 9.9/10.
Pack layers you can shed by midday plus one warm layer for the evening.
Figure on mid-season pricing, with crowds are moderate.
Frequently asked
- What is the weather like in Fremantle in September?
- In September, Fremantle averages 17°C, 37 mm of rain, and about 20 days with 6+ hours of sunshine. Its climate-comfort score is 9.2/10.
- Is September a good time to visit Fremantle?
- September earns a 9.2/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Fremantle in September?
- Expect about 37 mm of rain in September. Average humidity is 74% and there are about 20 days with 6+ hours of sunshine.
Curated in Fremantle
Tickets & experiences
Things to do in Fremantle
Fremantle, Australia. Live activities and tours from GetYourGuide, matched to this destination.