Cool
Average highs are around 20°C, so pack for cooler days.
September verdict
Bangor, Maine, United States in September
Weather score38Poor
Poor for holiday weather
Average highs are around 20°C, so pack for cooler days. Sunshine averages 6.1h per day, enough for a balanced month. Rainfall averages 90mm, so some wet days are possible.
September weather
Monthly averages
Temp
20°C
Rain
90mm
Sun
6.1h
Sea
14°C
Weather score
38
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 90mm, so some wet days are possible.
Some sun
Sunshine averages 6.1h per day, enough for a balanced month.
Cool sea
Sea temperatures average 14°C, so the water can feel cool.
Map
Weather map
Compare Bangor, Maine, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September20°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
September90mm average rain
September sits near Bangor's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to October and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September6.1 hours average sun
September sits close to Bangor's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September14°C average sea
September is one of Bangor's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to October
Sea temperatures are usually near 14°C in this stretch, so swimming comfort is at its strongest.
Weather score
September38 weather score
September sits close to Bangor's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
