Cool
Average highs are around -2°C, so pack for cooler days.
Weather Guide
Antarctica Average Monthly Weather
Weather score27Poor annual avg
Best months: December, January, November
Across the year, average daytime temperatures are around 0°C, sunshine averages 0.2h per day, and rainfall totals about 990mm. Sea temperatures average 1°C across the year.
Annual weather
Annual averages
Temp
0°C
Rain
990mm
Annual total
Sun
0.2h
Sea
1°C
Weather score
27
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 81mm, so some wet days are possible.
Limited sun
Sunshine averages 0.1h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 0°C, so the water can feel cool.
Map
Weather map
Compare Antarctica with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August-2°C average high
August has some of the coolest average daytime highs of the year, so pack for fresher conditions.
Warmest monthsJanuary to March and December
This stretch sets the upper range for average daytime heat.
Rain
August81mm average rain
August is close to Antarctica's usual rainfall pattern, with little seasonal change across the year.
Driest monthsAll year
Rainfall stays comparatively low through the year.
Sun
August0.1 hours average sun
August is close to Antarctica's usual sunshine level, with limited seasonal swing across the year.
Brightest monthsAll year
Sunshine stays consistently strong through the year.
Sea temperature
August0°C average sea
August is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaJanuary to May and December
Sea temperatures are usually near 2°C in this stretch, so swimming comfort is at its strongest.
Weather score
August22 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 to February and November to December
These months have the strongest weather score in the monthly averages.