Current Weather and Forecast in Portland, ME
Maine, United States 🇺🇸
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Explore Portland's typical temperatures and climate below - Live data returns shortly.
About the weather in Portland
Portland has a humid continental climate. July is the warmest month, with average highs of 78°, and January the coldest, when nights fall to around 19°. December brings the most rain, on about 11 days, while July is the sunniest, with 11.3 hours of sunshine a day. Over a whole year it rains on roughly 120 days.
Portland climate guide: monthly averages, seasons and the best time to visit
Common questions
How hot does Portland get in summer?
July averages 78°F (26°C). Summers here stay temperate rather than hot.
What is the best time to visit Portland?
Aim for May to October if you get the choice: these are the warmest and brightest weeks of the year, and highs average 70°F (21°C) against roughly 10 wet days a month. For the same question asked the other way round, see where else is warm in May.
Does it snow in Portland?
Yes - about 24 days a year carry measurable snowfall, concentrated November through April.
When does it rain most in Portland?
December, at 5.0 inches (128 mm) over about 11 days. May is the driest month, at 2.7 inches (69 mm).
When is Portland at its coldest?
January, with highs of 33°F (1°C) and lows near 19°F (-7°C). The coldest day in the 2015-2024 record fell to -19°F (-28°C).
What is the hottest month in Portland?
July, averaging 78°F (26°C) by day and 64°F (18°C) overnight. The hottest single day in our 2015-2024 record for this location reached 97°F (36°C).