Darwin Weather in September
Darwin in September sees very high temperatures, with highs around 34°C (93°F) and overnight lows of 23°C (73°F). With just 15 mm (0.6 in) of rainfall on average, rain is rarely an issue.
Rainfall in Darwin in September
Historically, the month has about 3 days of rain, averaging 15 mm (0.6 in) in total. When rain does fall, showers tend to be light and brief. Most days will be dry.
Temperature in Darwin in September
September in Darwin brings typical temperatures with highs around 34°C (93°F) and lows of 23°C (73°F). If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. With overnight lows of 23°C (73°F), evenings stay pleasantly warm.
Sunshine in Darwin in September
There are approximately 294 hours of sunshine this month, resulting in mostly clear days.
Wind Speed in Darwin in September
September has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.
Average water temperature in September
The water temperature is 26°C (79°F), which most people find very comfortable. A good month for swimming and water sports.September in Darwin has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, 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 Darwin's climate page.
Darwin Temperature in September
Min Temperature
23°C (73°F)
Max Temperature
34°C (93°F)
Water Temperature
26°C (79°F)
Chance of Rain
11%
Precipitation
15 mm (0.6 in)
Rainy days
3 days
Humidity
48%
Windspeed
3 m/s (6 knots)
Sunshine
294 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Darwin typically stay consistent throughout September, with daily highs averaging around 34°C (93°F). Nights are warm, with lows typically ranging from 22°C (72°F) to 24°C (75°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 Darwin in September
Browse day-by-day weather records for Darwin spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Darwin historical weather extremes in September
The extremes listed below come from historical weather data collected in Darwin from 1976 through 2025.
- The hottest September day on record in Darwin reached 37°C (99°F) (September 14, 1980).
- On September 17, 1984, Darwin saw its coldest September day with temperatures maxing out at 25°C (77°F).
- Darwin registered its coldest September night on September 5, 2004, with temperatures dropping to 15°C (59°F).
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 →
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What to Wear in Darwin in September
Hot weather in September means keeping cool is the priority. Loose-fitting clothes in natural fabrics work best. Pack plenty of shorts, tank tops, and breathable shirts. Don't forget a hat, swimwear, and comfortable sandals. With minimal rainfall expected, you can leave the rain gear at home. The water temperature sits at about 26°C (79°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Darwin 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 Darwin's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Darwin climate overview or explore weather in Australia.
