Cowes Weather in September
In Cowes, September brings moderate daytime temperatures around 16°C (61°F), with nights cooling to 10°C (50°F). It is the wettest month of the year, so expect more rainfall than usual.
Rainfall in Cowes in September
This month is known for heavy rainfall, so don't forget your umbrella to stay dry. Historically, September sees about 11 days of rain, with a monthly average of 89 mm (3.5 in). Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Cowes in September
September in Cowes brings typical temperatures with highs around 16°C (61°F) and lows of 10°C (50°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. With overnight lows of 10°C (50°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Cowes in September
The area enjoys a balanced 185 hours of sunlight, ensuring it's neither too overcast nor too sunny.September in Cowes can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
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 Cowes's climate page.
Cowes Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
16°C (61°F)
Chance of Rain
35%
Precipitation
89 mm (3.5 in)
Rainy days
11 days
Humidity
52% *
Sunshine
185 hours *
Percentage Sunshine
52% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Cowes typically stay consistent throughout September, with daily highs averaging around 16°C (61°F). Nights are cool, with lows typically ranging from 7°C (45°F) to 10°C (50°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 Cowes in September
Browse day-by-day weather records for Cowes spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Cowes historical weather extremes in September
The extremes listed below come from historical weather data collected in Cowes from 1976 through 2025.
- The warmest day in September was on September 26, 1987, with a maximum of 30°C (86°F).
- On September 13, 1983, Cowes saw its coldest September day with temperatures maxing out at 8°C (46°F).
- Cowes registered its coldest September night on September 8, 2003, with temperatures dropping to 0°C (32°F).
- Peak precipitation in September occurred on September 19, 1996, when 33 mm (1.3 in) of precipitation was measured.
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 Cowes 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. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Cowes 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 Cowes's climate page.
Temperature Rainfall Sunshine Humidity
See the full Cowes climate overview or explore weather in Australia.
