Mild
Average highs are around 24°C, so days are mild rather than hot.
Weather Guide
Heron Island, Australia Average Monthly Weather
Weather score70Good annual avg
Best months: November, October, April
Across the year, average daytime temperatures are around 28°C, sunshine averages 8h per day, and rainfall totals about 1159mm. Sea temperatures average 25°C across the year.
Annual weather
Annual averages
Temp
28°C
Rain
1159mm
Annual total
Sun
8h
Sea
25°C
Weather score
70
Good avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 43mm, which is relatively low for holiday planning.
Bright
Sunshine averages 8.5h per day, so bright days are a strong part of the month.
Cool sea
Sea temperatures average 22°C, so the water can feel cool.
Map
Weather map
Compare Heron Island, Australia with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August24°C average high
August is on the cooler side of Heron Island's year, useful if you prefer less intense daytime heat.
Warmest monthsJanuary to March and November to December
This stretch sets the upper range for average daytime heat.
Rain
August43mm average rain
August is one of Heron Island's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsApril to November
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August8.5 hours average sun
August 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
August22°C average sea
August is one of the coolest sea months, so the water may feel fresher than in peak months.
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
August65 weather score
August scores below Heron Island's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsMarch to April and September to December
These months have the strongest weather score in the monthly averages.