Portland weather in May
Mild and comfortable, with some rainy days. Average highs of 20°C and lows of 9°C, with around 10 rainy days expected throughout the month.
While May isn't our top-rated month for Portland, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.
Average high
20°C
Average low
9°C
Rainy days
10 days
Best months to visit
June, July, August, September
What to do in Portland in May
Whatever the weather, Portland rewards curious visitors. Here are some of the best ways to spend your time:
Explore
Dine
Culture
Nature
Shopping
Day trips
What to pack for May
Light layers work well — T-shirts and shorts for the day, a light jacket for evenings. Comfortable walking shoes are a must. Bring a compact umbrella just in case.
Browse other months
January
8C
Cold, with regular rainfall.
February
9C
Cold, with regular rainfall.
March
12C
Cool, with regular rainfall.
April
15C
Cool, with regular rainfall.
May (you are here)
20C
Mild and comfortable, with some rainy days.
Recommended
June
24C
Mild and comfortable, with occasional showers.
Recommended
July
28C
Warm and pleasant, and mostly sunny skies.
Recommended
August
29C
Warm and pleasant, and mostly sunny skies.
Recommended
September
24C
Mild and comfortable, with occasional showers.
October
17C
Cool, with some rainy days.
November
11C
Cool, with regular rainfall.
December
7C
Cold, with frequent heavy rain.
Book your May trip to Portland
Find hotels, tours and experiences for the perfect escape.
