Cool
Average highs are around 18°C, so pack for cooler days.
May verdict
Bar Harbor, United States in May
Weather score31Poor
Poor for holiday weather
Average highs are around 18°C, so pack for cooler days. Sunshine averages 6.9h per day, enough for a balanced month. Rainfall averages 106mm, so some wet days are possible.
May weather
Monthly averages
Temp
18°C
Rain
106mm
Sun
6.9h
Sea
7°C
Weather score
31
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 106mm, so some wet days are possible.
Some sun
Sunshine averages 6.9h per day, enough for a balanced month.
Cool sea
Sea temperatures average 7°C, so the water can feel cool.
Map
Weather map
Compare Bar Harbor, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
May18°C average high
May 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
May106mm average rain
May sits near Bar Harbor's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsFebruary and June to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
May6.9 hours average sun
May is brighter than Bar Harbor's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
May7°C average sea
May is below Bar Harbor's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to October
Sea temperatures are usually near 11°C in this stretch, so swimming comfort is at its strongest.
Weather score
May31 weather score
May sits close to Bar Harbor's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.
