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Whitsunday islands Weather in September
September in Whitsunday islands brings high temperatures, with daytime highs of 24°C (75°F) and nights around 21°C (70°F). Rainfall is at its lowest this month, making it one of the more reliable months to be outdoors.
Rainfall in Whitsunday islands in September
The risk of rain is at its lowest this month, making it a reliable choice for outdoor plans. Climate statistics over the past 30 years suggest around 4 days of rain, with 20 mm (0.8 in) average for the month. The odd shower may pass through, but it usually doesn't amount to much. A largely dry month overall.
Temperature in Whitsunday islands in September
Whitsunday islands has excellent weather in September, with days reaching 24°C (75°F) and nights cooling to 21°C (70°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights are mild at around 21°C (70°F), which is comfortable for most people.
Sunshine in Whitsunday islands in September
There are approximately 288 hours of sunshine this month, resulting in mostly clear days.If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Whitsunday islands.
Whitsunday islands Temperature in September
Min Temperature
21°C (70°F)
Max Temperature
24°C (75°F)
Chance of Rain
13%
Precipitation
20 mm (0.8 in)
Rainy days
4 days
Humidity
54% *
Sunshine
288 hours *
Percentage Sunshine
*
* Data from: Airlie Beach, Australia (22 KM, 14 Miles).
Whitsunday islands Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Whitsunday islands - and find the best time to visit.
Daily Historical Temperatures
36-year average (1990-2025)
Based on our historical records, temperatures in Whitsunday islands typically stay consistent throughout September, with daily highs averaging around 24°C (75°F). Nights are pleasant, with lows typically ranging from 19°C (66°F) to 21°C (70°F).
Average temperatures in September
Daily Historical Precipitation
36-year average (1990-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather records for Whitsunday islands in September
Browse day-by-day weather records for Whitsunday islands spanning 38 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Whitsunday islands historical weather extremes in September
Based on weather observations in Whitsunday islands between 1997 and 2026, these are the recorded extremes during September.
- On September 22, 1997, temperatures climbed to 32°C (90°F), marking the warmest September day on record.
- The coldest September day was on September 4, 2022, with a maximum of 20°C (68°F).
- The coldest night in September in Whitsunday islands was on September 19, 1999, with a minimum of 10°C (50°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 →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Whitsunday islands in September
For Whitsunday islands in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Almost no rain is expected, so no need to bring rain gear. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Whitsunday islands in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming10/10 -
Cycling10/10 -
Walking10/10 -
Barbeque9/10 -
Camping10/10 -
Outdoor sports10/10
Whitsunday islands 3-Day Forecast
More climate data for Whitsunday islands
Temperature Rainfall Sunshine Humidity
See the full Whitsunday islands climate overview or explore weather in Australia.
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Where to go in September - average daytime high across popular destinations.
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