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Caloundra Weather in September
Caloundra in September averages 24°C (75°F) during the day and 15°C (59°F) at night. This is the driest month of the year.
Rainfall in Caloundra in September
With the lowest rainfall figures of the year, conditions are ideal for exploring the outdoors. This month experiences about 6 days of rain according to historical data, averaging 49 mm (1.9 in). When rain does fall this month, it tends to come down hard. The low number of rain days makes each shower more significant.
Temperature in Caloundra in September
Weather in Caloundra is at its excellent in September. Highs reach 24°C (75°F), while nights settle around 15°C (59°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights drop to around 15°C (59°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.
Sunshine in Caloundra in September
The days are predominantly sunny, with an estimated total of around 271 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Caloundra.
Caloundra Temperature in September
Min Temperature
15°C (59°F)
Max Temperature
24°C (75°F)
Chance of Rain
20%
Precipitation
49 mm (1.9 in)
Rainy days
6 days
Humidity
48% *
Sunshine
271 hours *
Percentage Sunshine
*
* Data from: Brisbane, Australia (70 KM, 43 Miles).
Caloundra Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Caloundra - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Caloundra typically stay consistent throughout September, with daily highs averaging around 24°C (75°F). Nights are cool, with lows typically ranging from 12°C (54°F) to 15°C (59°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 records for Caloundra in September
Browse day-by-day weather records for Caloundra spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Caloundra historical weather extremes in September
Based on weather observations in Caloundra between 1976 and 2026, these are the recorded extremes during September.
- On September 6, 2019, temperatures climbed to 34°C (93°F), marking the warmest September day on record.
- The lowest daytime temperature in September was 15°C (59°F), recorded on September 23, 1993.
- Nighttime temperatures dropped to 5°C (41°F) on September 4, 1996, marking the coldest September night on record.
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 Caloundra in September
For Caloundra 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. Rain is likely on several days, so bring a good rain jacket. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Caloundra 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
Caloundra 3-Day Forecast
More climate data for Caloundra
Temperature Rainfall Sunshine Humidity
See the full Caloundra 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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