World Resorts USA Portland Weather

Portland weather in May

Weather in Portland: May

Average day temperature: 65.6°F
Average night temperature: 51.1°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:
2023
2022
2021

The highest day temperature during May of 2023 was 90°F. At the same time the lowest night temperature was 43°F. Day and night temperature averages during May were 71.9°F and 51.4°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 2.1 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: 7.0.

Best time for vacation in Portland

Sunniest months:
August 22 days
July 20 days
September 16 days
Warmest months:
August 80.9 °F
July 79.3 °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
+52°F
N 4 mph
Feels like: +43°F
Precip.: 82%
Places in USA:
Name
°F
+50°F
+64°F
+73°F
+73°F
+61°F
+57°F
+75°F
+55°F
+73°F
+57°F
+52°F
+73°F
+73°F
+77°F
+59°F
24 Hours Forecast
Portland
Local time: 06:51
April 28, sunday
0900
48°F
NE
6 mph
1200
54°F
NE
10 mph
1500
54°F
NE
9 mph
1800
52°F
E
9 mph
2100
48°F
NE
6 mph
April 29, monday
0000
45°F
NE
6 mph
0300
43°F
NE
7 mph
0600
41°F
E
7 mph
Units of measurement: °C / °F