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Brunswick (ME) Weather and Climate: A Comprehensive Guide

The temperature in Brunswick can vary quite a bit throughout the year. Temperatures can be warm during the warmest months, and very cold during the cooler months. It is also known for its large amounts of rain/snowfall. Let’s explore the climate details in depth to provide you with a complete overview.

Average maximum day and minimum night temperature

Visitors to Brunswick can expect significant temperature changes throughout the year. Typically, average maximum daytime temperatures range from a comfortable 26°C in July to a very cold -0°C in the coolest month, January.

Nights are cooler, with lows often dropping to around -11°C during the colder months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Brunswick is known for its substantial rain/snowfall, with annual precipitation reaching 1303 mm. Brunswick offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between June (145 mm) and January (86 mm) is not too significant, making the climate enjoyable for visitors and residents alike.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

For those who appreciate different seasons, Brunswick serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 9.3 hours of sunshine daily, and embrace the darker days in December, offering only 4.7 hours of daily sunlight. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Portland, the United States of America (36 KM, 22 Miles).

Daily hours of sunshine

Data from: Portland, the United States of America (36 KM, 22 Miles).

Forecast for Brunswick (ME)

Sun   Dec 22
-7°C | -14°C
NW 6 m/s
clear and no rain

clear and no rain

Mon   Dec 23
-3°C | -15°C
SW 2 m/s
partly cloudy and no rain

partly cloudy and no rain

Tue   Dec 24
-1°C | -8°C
NW 1 m/s
11 mm
partly cloudy and snow

partly cloudy and snow

The best time of year to visit Brunswick in the United States of America

During the months of June, July, August and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is winter in Brunswick?
    The coldest season / winter is in the following months: January, February and December.
  • Which is the warmest month in Brunswick?
    July has an average maximum temperature of 26°C and is the warmest month of the year.
  • Which is the coldest month in Brunswick?
    The coldest month is January with an average maximum temperature of -0°C.
  • Which is the wettest month in Brunswick?
    June tops the wettest month list with 145 mm of rainfall.
  • Which is the driest month in Brunswick?
    January is the driest month with 86 mm of precipitation.
  • Which is the sunniest month in Brunswick?
    July is the sunniest month with an average of 278 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.