Cool
Average highs are around 13°C, so pack for cooler days.
September verdict
Petersburg (Alaska), United States in September
Weather score7Poor
Poor for holiday weather
Average highs are around 13°C, so pack for cooler days. Sunshine averages 3.5h per day, so this is not one of the brighter months. Rainfall averages 277mm, so showers are a real planning factor.
September weather
Monthly averages
Temp
13°C
Rain
277mm
Sun
3.5h
Weather score
7
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 277mm, so showers are a real planning factor.
Limited sun
Sunshine averages 3.5h per day, so this is not one of the brighter months.
Map
Weather map
Compare Petersburg (Alaska), United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September13°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.
Rain
September277mm average rain
September sits near Petersburg (Alaska)'s yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsFebruary to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September3.5 hours average sun
September sits close to Petersburg (Alaska)'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.
Weather score
September7 weather score
September scores below Petersburg (Alaska)'s yearly average, so the weather trade-offs are more noticeable.
Best weather monthsMay to August
These months have the strongest weather score in the monthly averages.
