Best time to visit Belfast, ME

A month-by-month travel weather guide based on NOAA 30-year climate normals.

The most comfortable travel window in Belfast runs from May through September — 5 months of pleasant temperatures and modest rainfall.

January Cold
High
29.5°F
Low
10.2°F
Precip
3.94 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 9h 1m

February Cold
High
32.2°F
Low
11.7°F
Precip
3.16 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 10h 13m

March Cold
High
39.7°F
Low
20.4°F
Precip
4.12 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 11h 41m

April Cool
High
51.5°F
Low
31.1°F
Precip
4.38 in

Mild but on the chilly side. Pack a jacket; great for hiking and city walks.

Daylight ≈ 13h 15m

May Good
High
62.9°F
Low
41.3°F
Precip
3.86 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 14h 36m

June Good
High
71.5°F
Low
50.5°F
Precip
4.28 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 15h 18m

July Excellent
High
77.0°F
Low
56.6°F
Precip
3.17 in

Sweet spot — comfortable highs in the 65-80°F range, mild nights, low rain. Ideal for nearly any outdoor plan.

Daylight ≈ 15h 2m

August Excellent
High
76.4°F
Low
55.5°F
Precip
3.06 in

Sweet spot — comfortable highs in the 65-80°F range, mild nights, low rain. Ideal for nearly any outdoor plan.

Daylight ≈ 13h 51m

September Good
High
69.5°F
Low
48.1°F
Precip
4.09 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 12h 17m

October Wet
High
57.4°F
Low
37.9°F
Precip
5.38 in

Frequent rain. Bring waterproof gear; outdoor plans need flexibility.

Daylight ≈ 10h 44m

November Cool
High
45.6°F
Low
28.8°F
Precip
4.69 in

Mild but on the chilly side. Pack a jacket; great for hiking and city walks.

Daylight ≈ 9h 21m

December Cold
High
34.9°F
Low
18.4°F
Precip
4.65 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 8h 40m

Looking for similar climates? See Belfast's climate twins. Or jump straight to the full climate profile.