Cool
Average highs are around 11°C, so pack for cooler days.
September verdict
Adak, United States in September
Weather score23Poor
Poor for holiday weather
Average highs are around 11°C, so pack for cooler days. Sunshine averages 7h per day, enough for a balanced month. Rainfall averages 136mm, so some wet days are possible.
September weather
Monthly averages
Temp
11°C
Rain
136mm
Sun
7h
Sea
9°C
Weather score
23
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 136mm, so some wet days are possible.
Some sun
Sunshine averages 7h per day, enough for a balanced month.
Cool sea
Sea temperatures average 9°C, so the water can feel cool.
Map
Weather map
Compare Adak, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September11°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJuly to September
This stretch sets the upper range for average daytime heat.
Rain
September136mm average rain
September sits near Adak's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsFebruary and April to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September7 hours average sun
September sits close to Adak's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsFebruary to June and August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September9°C average sea
September is one of Adak's warmest sea months, when swimming comfort is usually strongest.
Warmest seaAugust to September
Sea temperatures are usually near 9°C in this stretch, so swimming comfort is at its strongest.
Weather score
September23 weather score
September sits close to Adak's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJanuary to September
These months have the strongest weather score in the monthly averages.