World Resorts USA Portland Weather

Portland weather in May

Weather in Portland: May

Average day temperature: 65.3°F
Average night temperature: 50.7°F
Number of sunny days: 11 days
Day length: 14.3 - 15.4 hours
Number of rainy days: 5 days
Precipitation totals: 2.2 in.

Air temperature in May, °F

Show year:
2024
2023
2022

The highest day temperature during May of 2024 was 79°F. At the same time the lowest night temperature was 39°F. Day and night temperature averages during May were 61.3°F and 46.6°F.

Sunny, partly cloudy and cloudy days

Mostly all days in May are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in May, in.

Precipitation total value in Portland in May is 2.0 in. Other months of the year show relatively similar values.

Wind speed in May, mph

The average wind speed value in May is 4.5 mph It makes May one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 7.1.

Best time for vacation in Portland

Sunniest months:
July 21 days
August 21 days
September 16 days
Warmest months:
August 80.7 °F
July 79.5 °F
September 73.2 °F
Coldest months:
December 44.0 °F
January 45.0 °F
February 46.4 °F
Rainiest months:
January 9 days
March 9 days
February 8 days
Windiest months:
February 6.0 mph
January 5.8 mph
December 5.8 mph

Portland on a weather map

Portland
+46°F
NW 4 mph
Feels like: +43°F
Precip.: 0%
Places in USA:
Name
°F
+48°F
+50°F
+75°F
+75°F
+59°F
+70°F
+77°F
+70°F
+46°F
+63°F
+57°F
+72°F
+72°F
+66°F
+34°F
24 Hours Forecast
Portland
Local time: 10:36
November 21, thursday
1200
46°F
NW
4 mph
1500
48°F
NW
6 mph
1800
46°F
SW
4 mph
2100
45°F
SW
6 mph
November 22, friday
0000
46°F
SW
8 mph
0300
50°F
SW
9 mph
0600
55°F
W
6 mph
0900
55°F
W
4 mph
Units of measurement: °C / °F