Cool
Average highs are around 13°C, so pack for cooler days.
Weather Guide
Adak, United States Average Monthly Weather
Weather score25Poor annual avg
Best months: February, June, May
Across the year, average daytime temperatures are around 7°C, sunshine averages 6.9h per day, and rainfall totals about 1505mm. Sea temperatures average 6°C across the year.
Annual weather
Annual averages
Temp
7°C
Rain
1505mm
Annual total
Sun
6.9h
Sea
6°C
Weather score
25
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 104mm, so some wet days are possible.
Some sun
Sunshine averages 7.4h 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
August13°C average high
August is one of Adak's hottest months, so shade and slower afternoons matter.
Warmest monthsJuly to September
This stretch sets the upper range for average daytime heat.
Rain
August104mm average rain
August sits on the drier side of Adak's year, which helps with sightseeing and transfers.
Driest monthsFebruary and April to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August7.4 hours average sun
August is brighter than Adak's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsFebruary to June and August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August9°C average sea
August 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
August26 weather score
August scores above Adak's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJanuary to September
These months have the strongest weather score in the monthly averages.