Cool
Average highs are around -25°C, so pack for cooler days.
Weather Guide
Islands of the Southern Ocean, Antarctica Average Monthly Weather
Weather score42Mixed annual avg
Best months: December, January, November
Across the year, average daytime temperatures are around -19°C, sunshine averages 0h per day, and rainfall totals about 64mm.
Annual weather
Annual averages
Temp
-19°C
Rain
64mm
Annual total
Sun
0h
Weather score
42
Mixed avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 4mm, which is relatively low for holiday planning.
Limited sun
Sunshine averages 0h per day, so this is not one of the brighter months.
Map
Weather map
Compare Islands of the Southern Ocean, Antarctica with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August-25°C average high
August has some of the coolest average daytime highs of the year, so pack for fresher conditions.
Warmest monthsJanuary and November to December
This stretch sets the upper range for average daytime heat.
Rain
August4mm average rain
August is close to Islands of the Southern Ocean's usual rainfall pattern, with little seasonal change across the year.
Driest monthsAll year
Rainfall stays comparatively low through the year.
Sun
August0 hours average sun
August is close to Islands of the Southern Ocean's usual sunshine level, with limited seasonal swing across the year.
Brightest monthsAll year
Sunshine stays consistently strong through the year.
Weather score
August35 weather score
August is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJanuary and November to December
These months have the strongest weather score in the monthly averages.