Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
September verdict
Cairns, Australia in September
Weather score82Very good
Very good for holiday weather
Average highs sit around 27°C, giving warm days by monthly-average standards. Sunshine averages 8.1h per day, so bright days are a strong part of the month. Rainfall averages 39mm, which is relatively low for holiday planning.
September weather
Monthly averages
Temp
27°C
Rain
39mm
Sun
8.1h
Sea
25°C
Weather score
82
Very good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 39mm, which is relatively low for holiday planning.
Bright
Sunshine averages 8.1h per day, so bright days are a strong part of the month.
Swimmable
Sea temperatures average 25°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Cairns, Australia with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September27°C average high
September is close to Cairns' yearly temperature average, giving a typical read on daytime heat.
Warmest monthsJanuary to March and November to December
This stretch sets the upper range for average daytime heat.
Rain
September39mm average rain
September is one of Cairns' driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsMay to November
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September8.1 hours average sun
September is brighter than Cairns' yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsAugust to November
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September25°C average sea
September is below Cairns' yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJanuary to March and December
Sea temperatures are usually near 29°C in this stretch, so swimming comfort is at its strongest.
Weather score
September82 weather score
September is one of Cairns' best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsSeptember to November
These months have the strongest weather score in the monthly averages.
