USA

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.

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14 days
forecast

Portland

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Portland

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2024

2023

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104

Day temperature

Night temperature

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

	Sunny days
	Partly cloudy days
	Cloudy days

32%

23%

45%

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

jan

feb

mar

apr

may

jun

jul

aug

sep

oct

nov

dec

0.0

0.9

1.8

2.7

3.5

4.4

5.3

6.2

7.1

3.9

3.3

2.9

1.8

2.0

3.8

3.1

3.9

5.2

3.9

3.3

2.9

1.8

2.0

3.8

3.1

3.9

5.2

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

jan

feb

mar

apr

may

jun

jul

aug

sep

oct

nov

dec

0.0

1.0

2.0

3.0

4.1

5.1

6.1

7.1

5.4

5.2

4.7

4.1

4.3

4.6

4.8

5.1

5.4

5.8

5.9

5.4

5.2

4.7

4.1

4.3

4.6

4.8

4.6

5.1

5.4

5.8

5.9

The average wind speed value in May is 4.6 mph It makes May one of the least windy months of the year.

jan

feb

mar

apr

may

jun

jul

aug

sep

oct

nov

dec

0.0

2.1

4.3

6.4

8.6

10.7

12.8

15.0

2.0

2.6

5.6

8.3

10.6

12.5

9.7

5.5

3.6

2.8

2.9

2.0

2.6

5.6

8.3

10.6

12.5

9.7

7.1

5.5

3.6

2.8

2.9

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.