Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
September verdict
American Samoa in September
Weather score76Very good
Very good for holiday weather
Average highs sit around 29°C, giving warm days by monthly-average standards. Sunshine averages 0h 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
29°C
Rain
87mm
Sun
0h
Sea
28°C
Weather score
76
Very good
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 0h per day, so this is not one of the brighter months.
Warm sea
Sea temperatures average 28°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare American Samoa with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September29°C average high
September is close to American Samoa's usual daytime heat, with little temperature swing across the year.
Warmest monthsAll year
Daytime heat stays consistently warm through the year.
Rain
September87mm average rain
September sits on the drier side of American Samoa's year, which helps with sightseeing and transfers.
Driest monthsJune to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September0 hours average sun
September is close to American Samoa's usual sunshine level, with limited seasonal swing across the year.
Brightest monthsAll year
Sunshine stays consistently strong through the year.
Sea temperature
September28°C average sea
September is one of the cooler sea months locally, though the water still averages warm enough for most swimmers.
Warmest seaJanuary to June and November to December
Sea temperatures are usually near 29°C in this stretch, so swimming comfort is at its strongest.
Weather score
September76 weather score
September is one of American Samoa's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJune to October
These months have the strongest weather score in the monthly averages.