Maine weather in March

The state broadly agrees with itself in March: afternoons run 42° in Portland, Maine and 42° in Bar Harbor, with everywhere else in between.

Based on 2 weather stations. Two stations, both on the coast — the North Woods interior gets a longer, colder winter than either of these.

Southern Coast

Highs near 42°, nights around 26°, and 13.6 in of snow in a typical March.

Place	Highs / lows	Wet days	Snow	The short version
Portland, Maine	42° / 26°	5	13.6 in	Snow, then slush, then snow again — and sugaring starts.

Highs near 42°, nights around 25°, and 4.9 in of rain in a typical March.

Place	Highs / lows	Wet days	The short version
Bar Harbor	42° / 25°	12	Mud, ice, and a lot of falling weather. Skip it.

Each place above has its own page for the full story — what the month feels like, what to pack, and whether the timing is right.