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Climate · Cairns

Cairns in September

Warm and mostly dry, as the days lengthen.

Typical weather, averaged over 30 years

September in Cairns is warm: highs near 79°F, lows near 70°F. Rain falls on about two days a week, and the days lengthen by 20 minutes from the first week to the last.September in Cairns is warm: highs near 26°C, lows near 21°C. Rain falls on about two days a week, and the days lengthen by 20 minutes from the first week to the last.

High
79°F26°Caverage
Low
70°F21°Caverage
Wet days
2a week · 29% of days
Daylight
12h 02mon average

Is September a good time to visit Cairns?

Yes. September is one of Cairns's best months (June to September).

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How September sits in the year

week by week

Temperature

Highs near 79°F in September, against 76°F to 87°F through the year.Highs near 26°C in September, against 24°C to 31°C through the year.

Chance of a wet day

29% of days in September, against 29% to 77% through the year.

Cloud cover

50% cover in September, against 50% to 78% through the year.

Daylight

12h 02m in September, against 11h 08m to 13h 07m through the year.

Week by week, lightly smoothed, with September shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. August76°24°low 68°low 20°2 wet days a weekRain on about two days a week.
  2. September79°26°low 70°low 21°2 wet days a weekRain on about two days a week.
  3. October81°27°low 72°low 22°3 wet days a weekRain on about three days a week.

Where Cairns sits, in September

Australia/Brisbane
this place
typical high in September 40°F4°C95°F35°C
Sunrise, mid-September
6:13 AMsets 6:12 PM
Above the sea
0 mlow-lying
Latitude
16.9°Ssouthern hemisphere
Nearest of ours
Finlayvale68 km north-west

The land around Cairns, shaded by its typical high in September, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in Australia in September

high · low · wet days
See September on the planning mapThe whole year in Cairns

Typical weather, averaged over 30 years (1995–2024), read 14 km east of Cairns. Its own grid square is mostly sea and holds only a daily average, so the page reads the nearest square with a true high and low near the town's height. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match.Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match. Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.