The highest day temperature in January 2026 was 52°F. The lowest night temperature was 3°F. The average values for day and night temperatures during January were 32.0°F и 25.0°F respectivly.

The average sea surface temperature in January 2026 for Edgartown was 36.7°F. The maximum and minimum values were 31.6°F and 39.6°F respectively.

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

Precipitation total in January for Edgartown is 1.3 in. It makes january the most rainy month of the year.

The average wind speed in January is 14.5 mph. It makes January one of the most windy months of the year for Edgartown.

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 Edgartown in January is 5.0 hours.