Cool
Average highs are around 3°C, so pack for cooler days.
September verdict
Poor for holiday weather
Average highs are around 3°C, so pack for cooler days. Sunshine averages 1.8h per day, so this is not one of the brighter months. Rainfall averages 138mm, so some wet days are possible.
Monthly averages
Temp
3°C
Rain
138mm
Sun
1.8h
Sea
0°C
Weather score
12
Poor
Cool
Average highs are around 3°C, so pack for cooler days.
Showers
Rainfall averages 138mm, so some wet days are possible.
Limited sun
Sunshine averages 1.8h 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
Compare South Georgia and the South Sandwich Islands with nearby places by weather score, rain, sun, temperature, and swim conditions.
September3°C average high
September is on the cooler side of South Georgia and the South Sandwich Islands' year, useful if you prefer less intense daytime heat.
Warmest monthsJanuary to March
This stretch sets the upper range for average daytime heat.
September138mm average rain
September sits near South Georgia and the South Sandwich Islands' yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
September1.8 hours average sun
September sits close to South Georgia and the South Sandwich Islands' yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJanuary and October to December
This stretch has the strongest sunshine in the monthly averages.
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 April and December
Sea temperatures are usually near 4°C in this stretch, so swimming comfort is at its strongest.
September12 weather score
September is close to South Georgia and the South Sandwich Islands' usual weather score, with limited month-to-month change.
Best weather monthsAll year
The weather score stays consistently strong through the year.