Cool
Average highs are around -1°C, so pack for cooler days.
September verdict
Antarctica in September
Weather score22Poor
Poor for holiday weather
Average highs are around -1°C, so pack for cooler days. Sunshine averages 0.2h per day, so this is not one of the brighter months. Rainfall averages 87mm, so some wet days are possible.
September weather
Monthly averages
Temp
-1°C
Rain
87mm
Sun
0.2h
Sea
0°C
Weather score
22
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 87mm, so some wet days are possible.
Limited sun
Sunshine averages 0.2h 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
September-1°C average high
September is on the cooler side of Antarctica's year, useful if you prefer less intense daytime heat.
Warmest monthsJanuary to March and December
This stretch sets the upper range for average daytime heat.
Rain
September87mm average rain
September 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
September0.2 hours average sun
September 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
September0°C average sea
September 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
September22 weather score
September 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.