Cool
Average highs are around 8°C, so pack for cooler days.
December verdict
Poor for holiday weather
Average highs are around 8°C, so pack for cooler days. Sunshine averages 0.8h per day, so this is not one of the brighter months. Rainfall averages 145mm, so some wet days are possible.
Monthly averages
Temp
8°C
Rain
145mm
Sun
0.8h
Sea
10°C
Weather score
10
Poor
Cool
Average highs are around 8°C, so pack for cooler days.
Showers
Rainfall averages 145mm, so some wet days are possible.
Limited sun
Sunshine averages 0.8h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 10°C, so the water can feel cool.
Map
Compare St Kilda, United Kingdom with nearby places by weather score, rain, sun, temperature, and swim conditions.
December8°C average high
December has some of the coolest average daytime highs of the year, so pack for fresher conditions.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
December145mm average rain
December is wetter than St Kilda's yearly average, so flexible plans matter more.
Driest monthsFebruary and April to July
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
December0.8 hours average sun
December is one of St Kilda's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsApril to June
This stretch has the strongest sunshine in the monthly averages.
December10°C average sea
December is below St Kilda's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to September
Sea temperatures are usually near 13°C in this stretch, so swimming comfort is at its strongest.
December10 weather score
December is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsApril to August
These months have the strongest weather score in the monthly averages.