Brunswick (ME) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Brunswick.
Climate overview of Brunswick
Brunswick, Maine, United States of America, sees big temperature differences between seasons, with July peaking at 26°C (79°F) and January dropping to 0°C (32°F).
The city receives considerable rain/snowfall, with around 1303 mm (51 in) annually. June is the wettest month. Sunshine peaks in July, when the city sees around 9.3 hours of sunshine per day.
Brunswick Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Brunswick — and find the best time to visit.
Monthly Temperature in Brunswick
Visitors to Brunswick can expect significant temperature changes throughout the year. Typically, average maximum daytime temperatures range from a comfortable 26°C (79°F) in July to a very cold 0°C (32°F) in the coolest month, January.
Nights vary from 15°C (59°F) in July to around -11°C (12°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Brunswick
Brunswick is known for its substantial rain/snowfall, with annual precipitation reaching 1303 mm (51 in). Brunswick offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month June (145 mm (5.7 in)) and the driest month January (86 mm (3.4 in)) is not too significant. For more details, please visit our Brunswick Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Brunswick
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
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Brunswick by Month
The relative humidity is high throughout the year in Brunswick.
The city experiences its highest humidity in September, reaching 77%. In February, the humidity drops to its lowest level at 65%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Brunswick
The weather does bring rainfall during this period, between 91 mm (3.6 in) and 145 mm (5.7 in). Planning your next adventure but unsure where to go? Our climate tool suggests perfect locations tailored to your preferred weather conditions. Discover your ideal travel destination with our weather planner.
Frequently asked questions about the climate in Brunswick
What is the best time to visit Brunswick?
August and September typically offer the most optimal weather in Brunswick. In contrast, January, February, March, April, November and December tend to have less optimal conditions.
What temperatures can I expect in Brunswick?
Daytime highs range from 0°C (32°F) in January to 26°C (79°F) in July. Nighttime lows range from -11°C (12°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does Brunswick get?
Annual rainfall is around 1303 mm (51 in). June is the wettest month with 145 mm (5.7 in), while January is the driest with 86 mm (3.4 in).
How sunny is Brunswick?
Brunswick receives around 2,497 hours of sunshine per year. July is the sunniest month with 278 hours, while December is the cloudiest with just 140 hours. Overall, Brunswick enjoys abundant sunshine.
Brunswick 3-Day Forecast
Brunswick (ME) 3-Day Forecast
Brunswick on the map
Brunswick is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
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