Margaret River Weather in September
September in Margaret River averages 18°C (64°F) during the day and 12°C (54°F) at night. Quite a bit of rainfall is typical this month, with around 85 mm (3.3 in) on average. An umbrella is a good idea.
Rainfall in Margaret River in September
Records from the past 30 years suggest around 11 days of rain, with 85 mm (3.3 in) average for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Margaret River in September
If you're visiting Margaret River in September, expect highs of 18°C (64°F) and overnight lows around 12°C (54°F). Conditions are often most pleasant around the middle of the day. Nights drop to around 12°C (54°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.If you prefer dry days with pleasant temperatures, January, February, March, April, November and December typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Australia, check out our Margaret River's climate page.
Margaret River Temperature in September
Min Temperature
12°C (54°F)
Max Temperature
18°C (64°F)
Chance of Rain
38%
Precipitation
85 mm (3.3 in)
Rainy days
11 days
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Margaret River typically stay consistent throughout September, with daily highs averaging around 18°C (64°F). Nights are cool, with lows around 11°C (52°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Margaret River in September
Browse day-by-day weather records for Margaret River spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Margaret River historical weather extremes in September
According to our 49 years of weather records for Margaret River, the following extremes were recorded between 1976 and 2025.
- Margaret River recorded its highest September temperature of 27°C (81°F) on September 27, 2023.
- The coldest September day was on September 3, 1999, with a maximum of 11°C (52°F).
- Nighttime temperatures dropped to 2°C (36°F) on September 12, 2004, marking the coldest September night on record.
- The heaviest September precipitation occurred on September 6, 1983, when 45 mm (1.8 in) of precipitation fell.
Best Places in Australia in September
Find out more about the weather in Australia and which places have the best travel conditions in this month. See all of Australia in September →
perfect weather
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tolerable
unpleasant
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What to Wear in Margaret River in September
Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes.What To Do in Margaret River in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Australia, check out our Margaret River's climate page.
See the full Margaret River climate overview or explore weather in Australia.
