Which is the hottest month in Portland?

The hottest time of year in Portland is normally August. Expect maximum daytime temperatures to reach 26°C with low heat and humidity.

Which month has the most rain in Portland?

In terms of rainfall, December is usually the wettest month in Portland with 179mm on average. There are normally 18 days in December with some rain.

When is it sunniest in Portland?

The sunniest time of year in Portland is normally July with bright sunshine on average for 72% of daylight hours; that's 11 hours of sunshine per day.

Best time to visit Portland

Q: When is the best time to visit Portland?

The best time to visit Portland is June, July and August based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

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Portland by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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When is the best time to visit Portland?

The best time to visit Portland is June, July and August based on the following average weather conditions.

Maximum daytime temperature = 72 - 86°F [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

0
Jan
0.5
Feb
1.5
Mar
1.5
Apr
4
May
5
Jun
5
Jul
5
Aug
4
Sep
1.5
Oct
0
Nov
0
Dec

Change criteria

Max Day Temperature (°F)

45
Jan
50
Feb
54
Mar
59
Apr
66
May
72
Jun
79
Jul
79
Aug
73
Sep
63
Oct
52
Nov
45
Dec

Hours of Sunshine (daily)

3
Jan
4
Feb
6
Mar
7
Apr
9
May
10
Jun
11
Jul
10
Aug
8
Sep
5
Oct
3
Nov
2
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Oregon (Portland) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C) | Imperial (°F)