Maine weather

Our guide to the weather in Maine during December

-1

Average high

1

UV Index

101mm

Monthly rainfall

84%

Humidity

We've looked at the most up-to-date weather data for Maine, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Maine weather in December.

How cold is it in Maine during December?

It's extremely cold in Maine during December. The temperature tops out at around -1℃ during the day, falling away to -8℃ at night. Yikes! The UV index will be low at this time of year, so not something to worry about. However, if you're going to be outside for long periods it's always a good idea to apply a small amount of sunscreen to exposed skin.

Does it snow in Maine during December?

Yes, snow is pretty likely during December. There's also a good chance that there will be ice and snow on the ground, so pack appropriate footwear and clothing.

Is it windy in Maine during December?

You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in December. With cold air temperatures at this time of year, any breeze will feel very cold.

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Weather in Maine

Our month-by-month guide to the weather and climate in Maine

-5.0

Maine weather in

January
-3.9

Maine weather in

February
1.0

Maine weather in

March
8.8

Maine weather in

April
17.1

Maine weather in

May
21.5

Maine weather in

June
25.4

Maine weather in

July
24.8

Maine weather in

August
20.3

Maine weather in

September
12.8

Maine weather in

October
5.2

Maine weather in

November
-1.4

Maine weather in

December