September is an excellent time to visit Cairns, as it falls during the winter dry season.
You can expect pleasantly warm weather and sea breezes with around nine hours of sunshine daily with occasional rain showers that mainly fall at night.
How hot is it in Cairns in September?
Daytime temperatures usually reach 28°C (82°F) in Cairns in September, with moderate heat and humidity, falling to 18°C (64°F) at night.
How sunny is it in Cairns in September?
There are normally nine hours of bright sunshine each day in Cairns in September – that's around 75% of daylight hours.
Sunrise & sunset in September?
Sunrise is around 6:10am with sunset around 6:10pm.
How warm is the sea around Cairns in September?
The average sea temperature around Cairns in September is 25°C (77°F).
Does it rain in Cairns in September?
There are usually four days with some rain in Cairns during September; the average rainfall is 14mm (‹1in).
How windy is it in Cairns in September?
September has an average hourly wind speed of 22 kilometres per hour (14 mph; 12 knots). The predominant wind direction is from the east.
What to do in Cairns in September?
September weather conditions are great for rainforest tours, white-water rafting, game fishing and diving the Great Barrier Reef.
This is the best time for game fishing and a good time to watch minke and giant humpback whales during their annual migration.
September sees hotel rates drop slightly as the winter high season draws to a close.
|High Temp: 28°C (82°F)|
|Low Temp: 18°C (64°F)|
|Sunshine: 9 hours per day|
|Daylight: 12 hours per day|
|Wind speed: 22 km/h (14 mph; 12 knots)|
|Rainfall: 14mm (‹1in) per month|
|Wet Days: 4 days with some rain|
|Comfort Level: Moderate heat & 66% humidity|
|UV Index: Extreme|
|Sea Temp: 25°C (77°F)|
The best time to visit Cairns is during the winter dry season from June to November, when the skies are invariably blue and the days warm and sunny, with a gently breeze.
Note: Meteorological data for Cairns is based on weather statistics gathered for the 30-year period 1991 to 2020, and is sourced from the Bureau of Meteorology (BoM) at the closest weather station, Cairns International Airport (CNS), which is located 7km (4mi) north of Cairns CBD. Additional climate data is sourced from the World Meteorological Organization (WMO).
Advice on the best time to visit a particular destination is based on average local weather statistics, when the weather conditions are generally better than at other times of the year. We consider high and low temperatures, risk of rain (and thunderstorms, etc.), amount of sunshine and sea temperature. For general outdoor activities we favour clear, rainless days with a temperature range between 18°C (64°F) and 27°C (80°F); and for hot-weather activities we favour clear, rainless days with a temperature range between 24°C (75°F) and 32°C (89°F). Often, the best times to visit correspond to high season and therefore involve higher prices.
Latest update: Cairns Weather in September: 29 September, 2023
Disclaimer: The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data and conditions at any given location and time are unpredictable and variable. We assume no responsibility and can not be held legally responsible for any decisions made on the basis of the information presented on this site.