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Best time to visit Portland, Oregon, OR, USA

Our verdict

The best time to visit Portland, OR is November

Are you looking to travel to Portland, OR and want to find out when’s the best time to visit? You’re in the right place! The perfect time to visit Portland, OR is November due to the excellent weather conditions, and you might even find that the cost of flights and accommodation are lower than if you travel during the peak holiday seasons.

The very hottest temperatures in Portland, OR get to around 30℃ (86℉) in the height of summer. The weather in the winter, especially around December, can reach a minimum of -2℃ (29℉).

The sun stays up the longest in Portland, OR in July, so you’ll get the most out of your daytime activities if you visit around this time. You don’t want to get wet on your holiday, do you? Well if you’re trying to avoid the rain, then steer clear of Portland, OR in December. Head over there in July instead if you want to increase your chances of not being rained on.

If you want to learn everything you need to know about the best times to travel to Portland, OR, the weather and stats by month and so much more, make sure you keep reading. Once you’re ready, we’ve included a bunch of our favourite online booking tools to help you find the best deals on flights, accommodation and anything else you’ll need for your trip. Happy reading!

Warmest month

August

Least rainfall

July

Most daylight

July

Portland, OR seasons

Before you continue, it’s important to know when the seasons are in Portland, OR as they might be different to yours depending on where in the world you’re travelling from. Portland, OR is in the Northern Hemisphere, so the seasons fall during these months:

SeasonMonths
Summer June to August
Autumn/fall September to November
Winter December to February
Spring March to May

Average temperatures in Portland, OR

If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Portland, OR for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.

Portland, OR climate by month

If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Portland, OR for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.

Jump to:

JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC

Portland, OR in January

  • Average temperature: 5℃ (40℉)
  • Average high temperature: 8℃ (46℉)
  • Average low temperature: 2℃ (35℉)
  • Average humidity: 83%
  • Average sunny days: 11 days
  • Average rainfall: 110mm (4") over 18 days
  • Average snow days: 1 days
11 days
of pure sunshine
18 days
of showers or rain

What to pack: If you’re heading to Portland, OR in January, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Portland, OR in February

  • Average temperature: 5℃ (41℉)
  • Average high temperature: 9℃ (48℉)
  • Average low temperature: 2℃ (36℉)
  • Average humidity: 83%
  • Average sunny days: 9 days
  • Average rainfall: 83mm (3") over 17 days
  • Average snow days: 2 days
9 days
of pure sunshine
17 days
of showers or rain

What to pack: If you’re heading to Portland, OR in February, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Portland, OR in March

  • Average temperature: 7℃ (45℉)
  • Average high temperature: 11℃ (53℉)
  • Average low temperature: 3℃ (38℉)
  • Average humidity: 81%
  • Average sunny days: 8 days
  • Average rainfall: 86mm (3") over 20 days
  • Average snow days: 2 days
8 days
of pure sunshine
20 days
of showers or rain

What to pack: If you’re heading to Portland, OR in March, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Portland, OR in April

  • Average temperature: 10℃ (49℉)
  • Average high temperature: 15℃ (59℉)
  • Average low temperature: 4℃ (40℉)
  • Average humidity: 77%
  • Average sunny days: 9 days
  • Average rainfall: 79mm (3") over 19 days
9 days
of pure sunshine
19 days
of showers or rain

What to pack: If you’re heading to Portland, OR in April, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Portland, OR in May

  • Average temperature: 14℃ (56℉)
  • Average high temperature: 20℃ (67℉)
  • Average low temperature: 7℃ (44℉)
  • Average humidity: 72%
  • Average sunny days: 15 days
  • Average rainfall: 45mm (2") over 14 days
15 days
of pure sunshine
14 days
of showers or rain

What to pack: If you’re heading to Portland, OR in May, make sure you pack a warm jacket or coat.


Portland, OR in June

  • Average temperature: 16℃ (61℉)
  • Average high temperature: 23℃ (73℉)
  • Average low temperature: 9℃ (48℉)
  • Average humidity: 71%
  • Average sunny days: 16 days
  • Average rainfall: 29mm (1") over 11 days
16 days
of pure sunshine
11 days
of showers or rain

What to pack: If you’re heading to Portland, OR in June, make sure you pack a coat or jumper for the evenings and some light clothes for the daytime.


Portland, OR in July

  • Average temperature: 19℃ (66℉)
  • Average high temperature: 27℃ (80℉)
  • Average low temperature: 11℃ (52℉)
  • Average humidity: 65%
  • Average sunny days: 24 days
  • Average rainfall: 9mm (0") over 5 days
24 days
of pure sunshine
5 days
of showers or rain

What to pack: If you’re heading to Portland, OR in July, make sure you pack a coat or jumper for the evenings, and t-shirts and light gear for the daytime.


Portland, OR in August

  • Average temperature: 20℃ (67℉)
  • Average high temperature: 28℃ (81℉)
  • Average low temperature: 12℃ (54℉)
  • Average humidity: 64%
  • Average sunny days: 24 days
  • Average rainfall: 10mm (0") over 5 days
24 days
of pure sunshine
5 days
of showers or rain

What to pack: If you’re heading to Portland, OR in August, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.


Portland, OR in September

  • Average temperature: 16℃ (62℉)
  • Average high temperature: 23℃ (74℉)
  • Average low temperature: 11℃ (51℉)
  • Average humidity: 69%
  • Average sunny days: 17 days
  • Average rainfall: 43mm (2") over 10 days
17 days
of pure sunshine
10 days
of showers or rain

What to pack: If you’re heading to Portland, OR in September, make sure you pack a coat or jumper for the evenings, and t-shirts and light gear for the daytime.

Portland, OR in October

  • Average temperature: 12℃ (53℉)
  • Average high temperature: 16℃ (62℉)
  • Average low temperature: 8℃ (46℉)
  • Average humidity: 75%
  • Average sunny days: 14 days
  • Average rainfall: 86mm (3") over 16 days
14 days
of pure sunshine
16 days
of showers or rain

What to pack: If you’re heading to Portland, OR in October, make sure you pack a warm jacket or coat.


Portland, OR in November

  • Average temperature: 7℃ (45℉)
  • Average high temperature: 11℃ (51℉)
  • Average low temperature: 4℃ (40℉)
  • Average humidity: 82%
  • Average sunny days: 10 days
  • Average rainfall: 90mm (4") over 19 days
10 days
of pure sunshine
19 days
of showers or rain

What to pack: If you’re heading to Portland, OR in November, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Portland, OR in December

  • Average temperature: 4℃ (39℉)
  • Average high temperature: 7℃ (44℉)
  • Average low temperature: 2℃ (35℉)
  • Average humidity: 83%
  • Average sunny days: 11 days
  • Average rainfall: 115mm (5") over 18 days
  • Average snow days: 1 days
11 days
of pure sunshine
18 days
of showers or rain

What to pack: If you’re heading to Portland, OR in December, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Top FAQs

The hottest month of the year in Portland, OR is usually August, where temperatures tend to rise to around 28℃ (81℉) in the middle of the day or early afternoon.
The month with the least amount of rain in Portland, OR is generally around July. The dry season often coincides with cooler weather, so you should check the temperatures in July first to make sure it’s still a good time to go.
The rainiest time of year in Portland, OR is generally around December, although the wetter season can sometimes extend a few months either side of December too.
If you want to get the most out of your time visiting Portland, OR, or if you're just afraid of the dark, the days in July are usually the longest between sunrise and sunset.

Portland, OR map