The highest day temperature in January 2026 was 47°F. The lowest night temperature was -11°F. The average values for day and night temperatures during January were 24.7°F и 17.7°F respectivly.

The average sea surface temperature in January 2026 for Bar Harbor was 35.3°F. The maximum and minimum values were 33.0°F and 38.4°F respectively.

You can expect various weather conditions during January. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in January for Bar Harbor is 1.1 in.

The average wind speed in January is 10.5 mph. It makes January one of the most windy months of the year for Bar Harbor.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Bar Harbor in January is 4.5 hours.