Cool
Average highs are around 12°C, so pack for cooler days.
September verdict
Poor for holiday weather
Average highs are around 12°C, so pack for cooler days. Sunshine averages 5.8h per day, enough for a balanced month. Rainfall averages 89mm, so some wet days are possible.
Monthly averages
Temp
12°C
Rain
89mm
Sun
5.8h
Sea
11°C
Weather score
23
Poor
Cool
Average highs are around 12°C, so pack for cooler days.
Showers
Rainfall averages 89mm, so some wet days are possible.
Some sun
Sunshine averages 5.8h per day, enough for a balanced month.
Cool sea
Sea temperatures average 11°C, so the water can feel cool.
Map
Compare Aniakchak National Monument, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
September12°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
September89mm average rain
September is one of Aniakchak National Monument's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to July and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
September5.8 hours average sun
September sits close to Aniakchak National Monument's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsApril to July
This stretch has the strongest sunshine in the monthly averages.
September11°C average sea
September is one of Aniakchak National Monument's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to October
Sea temperatures are usually near 10°C in this stretch, so swimming comfort is at its strongest.
September23 weather score
September scores below Aniakchak National Monument's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsFebruary to August
These months have the strongest weather score in the monthly averages.