Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
December verdict
Heron Island, Australia in December
Weather score72Very good
Very good for holiday weather
Average highs sit around 31°C, giving warm days by monthly-average standards. Sunshine averages 8.5h per day, so bright days are a strong part of the month. Rainfall averages 141mm, so some wet days are possible.
December weather
Monthly averages
Temp
31°C
Rain
141mm
Sun
8.5h
Sea
26°C
Weather score
72
Very good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 141mm, so some wet days are possible.
Bright
Sunshine averages 8.5h per day, so bright days are a strong part of the month.
Swimmable
Sea temperatures average 26°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Heron Island, Australia with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December31°C average high
December is one of Heron Island's 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
December141mm average rain
December is wetter than Heron Island's yearly average, so flexible plans matter more.
Driest monthsApril to November
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December8.5 hours average sun
December is brighter than Heron Island's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsAugust to December
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
December26°C average sea
December sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJanuary to April and December
Sea temperatures are usually near 27°C in this stretch, so swimming comfort is at its strongest.
Weather score
December72 weather score
December sits close to Heron Island's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsMarch to April and September to December
These months have the strongest weather score in the monthly averages.