The weather in Brunswick in March is very cold with temperatures between 30°F and 44°F, warm clothes are a must.
You can expect rain for roughly half of the month of March in Brunswick. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Please note that Brunswick can expect a few days of snow in March.
Our weather forecast can give you a great sense of what weather to expect in Brunswick in March 2026.
If you’re planning to visit Brunswick in the near future, we highly recommend that you review the 14 day weather forecast for Brunswick before you arrive.
Temperatures
44° / 30°
Rainy Days
8
Snowy Days
2
Dry Days
20
Rainfall
1.46
in
Sun Hours
1.5
Hrs