Cool
Average highs are around -3°C, so pack for cooler days.
January verdict
Poor for holiday weather
Average highs are around -3°C, so pack for cooler days. Sunshine averages 3.5h per day, so this is not one of the brighter months. Rainfall averages 83mm, so some wet days are possible.

Monthly averages
Temp
-3°C
Rain
83mm
Sun
3.5h
Sea
3°C
Weather score
22
Poor
Cool
Average highs are around -3°C, so pack for cooler days.
Showers
Rainfall averages 83mm, so some wet days are possible.
Limited sun
Sunshine averages 3.5h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 3°C, so the water can feel cool.
Map
Compare Bangor, Maine, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
January-3°C average high
January has some of the coolest average daytime highs of the year, so pack for fresher conditions.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
January83mm average rain
January 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.
January3.5 hours average sun
January is below Bangor's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
January3°C average sea
January is below Bangor's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to October
Sea temperatures are usually near 14°C in this stretch, so swimming comfort is at its strongest.
January22 weather score
January is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.