Townsville Weather in September

September in Townsville sees daytime temperatures around 29°C (84°F) and lows of 19°C (66°F) at night. As the driest month of the year, combined with perfect weather, it's a great time to visit.

Rainfall in Townsville in September

Conditions tend to be dry and settled, making it a good month for outdoor plans. Typically, you can expect about 3 days of rain this month, with 14 mm (0.6 in) on average. Rain is scarce this month and when it does fall, it tends to be light. Unlikely to disrupt plans significantly.

Temperature in Townsville in September

Townsville has perfect weather in September, with days reaching 29°C (84°F) and nights cooling to 19°C (66°F). Overall, the month follows a fairly predictable daily temperature pattern. With overnight lows of 19°C (66°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Townsville in September

The month enjoys around 285 hours of sunshine, creating mostly sunny days with good weather conditions.

Wind Speed in Townsville in September

In September, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.

Average water temperature in September

The water temperature is 23°C (73°F), which most people find very comfortable. A good month for swimming and water sports.

If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Townsville.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
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• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Australia, check out our Townsville's climate page.

Townsville Temperature in September

Min Temperature 19°C (66°F)  

Max Temperature 29°C (84°F)  

Water Temperature 23°C (73°F)  

Chance of Rain 9%  

Precipitation 14 mm (0.6 in)  

Rainy days 3 days  

Humidity 67%  

Windspeed 4 m/s (8 knots)  

Sunshine 285 hours  

Percentage Sunshine  

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Townsville typically stay consistent throughout September, with daily highs averaging around 29°C (84°F). Nights are pleasant, with lows typically ranging from 17°C (63°F) to 20°C (68°F).

Average temperatures in September

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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

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Historical weather for Townsville in September

Browse day-by-day weather records for Townsville spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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Townsville historical weather extremes in September

The extremes listed below come from historical weather data collected in Townsville from 1993 through 2025.

• The warmest day in September was on September 15, 2003, with a maximum of 36°C (97°F).
• On September 7, 1995, Townsville saw its coldest September day with temperatures maxing out at 22°C (72°F).
• The lowest overnight temperature recorded in September was 8°C (46°F) (September 11, 2011).

What to Wear in Townsville in September

Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. With minimal rainfall expected, you can leave the rain gear at home. Expect water temperatures of around 23°C (73°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Townsville in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

10/10

Cycling

8/10

Walking

8/10

Barbeque

10/10

Camping

10/10

Outdoor sports

8/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Australia, check out our Townsville's climate page.

More climate data for Townsville

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Townsville climate overview or explore weather in Australia.