Cool
Average highs are around 20°C, so pack for cooler days.
December verdict
Mixed for holiday weather
Average highs are around 20°C, so pack for cooler days. Sunshine averages 7.8h per day, enough for a balanced month. Rainfall averages 63mm, which is relatively low for holiday planning.
Monthly averages
Temp
20°C
Rain
63mm
Sun
7.8h
Sea
17°C
Weather score
48
Mixed
Cool
Average highs are around 20°C, so pack for cooler days.
Drier
Rainfall averages 63mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 7.8h per day, enough for a balanced month.
Cool sea
Sea temperatures average 17°C, so the water can feel cool.
Map
Compare Flinders Island, Australia with nearby places by weather score, rain, sun, temperature, and swim conditions.
December20°C average high
December sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJanuary to March
This stretch sets the upper range for average daytime heat.
December63mm average rain
December sits near Flinders Island's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to April and September to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
December7.8 hours average sun
December is brighter than Flinders Island's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJanuary to February and November to December
This stretch has the strongest sunshine in the monthly averages.
December17°C average sea
December is close to Flinders Island's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJanuary to April
Sea temperatures are usually near 18°C in this stretch, so swimming comfort is at its strongest.
December48 weather score
December scores above Flinders Island's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJanuary to March
These months have the strongest weather score in the monthly averages.