Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
December verdict
Cairns, Australia in December
Weather score67Good
Good for holiday weather
Average highs sit around 31°C, giving warm days by monthly-average standards. Sunshine averages 7.6h per day, enough for a balanced month. Rainfall averages 188mm, so showers are a real planning factor.
December weather
Monthly averages
Temp
31°C
Rain
188mm
Sun
7.6h
Sea
29°C
Weather score
67
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 188mm, so showers are a real planning factor.
Some sun
Sunshine averages 7.6h per day, enough for a balanced month.
Warm sea
Sea temperatures average 29°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Cairns, Australia with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December31°C average high
December is one of Cairns' warmest months, with daytime heat above the yearly average.
Warmest monthsJanuary to March and November to December
This stretch sets the upper range for average daytime heat.
Rain
December188mm average rain
December sits near Cairns' yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsMay to November
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December7.6 hours average sun
December sits close to Cairns' yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsAugust to November
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
December29°C average sea
December sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
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
December67 weather score
December sits close to Cairns' yearly weather-score average, giving a typical overall read on the month.
Best weather monthsSeptember to November
These months have the strongest weather score in the monthly averages.
