Current Weather and Forecast in Portland, OR
Oregon, United States 🇺🇸
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About the weather in Portland
Portland has a Mediterranean climate. August is the warmest month, with average highs of 84°, and December the coldest, when nights fall to around 36°. December brings the most rain, on about 19 days, while July is the sunniest, with 13.2 hours of sunshine a day. Over a whole year it rains on roughly 148 days.
Portland climate guide: monthly averages, seasons and the best time to visit
Common questions
Is there snow in Portland?
Yes - about 9 days a year carry measurable snowfall, concentrated December through April.
Which month is wettest in Portland?
December, at 8.9 inches (225 mm) over about 19 days. July is the driest month, at 8 mm (0.3 in).
When should I visit Portland?
May to July and September is the sweet spot for Portland - the dry season is running but the afternoons are still bearable. Expect 75°F (24°C) in the afternoon and around 7 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in May.
How often does it rain in Portland?
About 148 days bring measurable precipitation, totalling 53.5 inches (1358 mm). That works out at roughly 9.2 mm on an average wet day.
Which month is coolest in Portland?
December, with highs of 46°F (8°C) and lows near 36°F (2°C). The coldest day in the 2015-2024 record fell to 6°F (-14°C).
What is the hottest month in Portland?
August, averaging 84°F (29°C) by day and 59°F (15°C) overnight. The hottest single day in our 2015-2024 record for this location reached 115°F (46°C).