When is the best time to go to Portland
The chart above shows the best time of year to visit Portland, United States. These are based on an analysis of weather averages such as temperature, rainfall and number of hours of sunshine. These ratings are based solely on the climate and do not take into account other factors such as accommodation prices and how busy it is likely to be.
Average temperatures in Portland
Portland weather by month
Please note our recommendations for when to visit Portland are based solely on the weather and do not take into accounts accommodation prices, how busy it will be and what events are on.
January
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| -0°C | 58mm | 5hrs | 10.7hrs |
January is a reasonably dry month in Portland and the temperature is generally cold.
Based on weather alone, this is probably a time of year to avoid going to Portland for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
January is in the winter in Portland and is typically the coldest month of the year. Daytime maximum temperatures average around a freezing -0°C (32°F), whilst at night -10°C (15°F) is normal.
On average January is the driest month of the year in Portland with around 58mm 2.3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 5 hours of sunshine per day.
February
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 2°C | 54mm | 5.7hrs | 11.6hrs |
February in Portland is generally reasonably dry with the temperature being cold.
Based on weather alone, this is probably a time of year to avoid going to Portland for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
February is in the winter in Portland and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a freezing 2°C (36°F), whilst at night -8°C (17°F) is normal.
On average February is the 2nd driest month of the year in Portland with around 54mm 2.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.7 hours of sunshine per day.
Portland weather in February »
March
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 8°C | 79mm | 6.6hrs | 12.8hrs |
The weather in March in Portland is characteristically cool and reasonably dry.
Based on weather alone, this is probably a time of year to avoid going to Portland for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
March is in the spring in Portland and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cold 9°C (48°F), whilst at night -2°C (28°F) is normal.
On average March is the 3rd driest month of the year in Portland with around 79mm 3.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.6 hours of sunshine per day.
April
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 14°C | 97mm | 8.2hrs | 14.2hrs |
Portland's weather in April is typically cool and a little damp in nature.
Although outside the main holiday season, there is still plenty of reasonably acceptable weather around this time of year. This makes it an okay time to visit Portland.
April is in the spring in Portland and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 16°C (61°F), whilst at night 3°C (38°F) is normal.
On average April is the 4th driest month of the year in Portland with around 97mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.2 hours of sunshine per day.
May
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 20°C | 97mm | 9.8hrs | 15.4hrs |
May is a a little damp month in Portland and the temperature is generally mild.
It is perhaps a good month to visit Portland, with some very good weather at this time of year.
May is in the spring in Portland and is typically the 5th coldest month of the year. Daytime maximum temperatures average around 22°C (72°F), whilst at night 9°C (48°F) is normal.
On average May is the 5th driest month of the year in Portland with around 97mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.8 hours of sunshine per day.
June
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 25°C | 102mm | 11.2hrs | 10.7hrs |
Warm and damp weather often prevails in Portland during the month of June
It is perhaps a good month to visit Portland, with some extremely good weather at this time of year.
June is in the summer in Portland and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a comfortable 27°C (81°F), whilst at night 14°C (58°F) is normal.
On average June is the 6th driest month of the year in Portland with around 102mm 4 inches of rain making it a damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 11.2 hours of sunshine per day.
July
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 26°C | 103mm | 11hrs | 11.6hrs |
July in Portland is generally damp with the temperature being warm.
It is perhaps a good month to visit Portland, with some extremely good weather at this time of year.
July is in the summer in Portland and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a comfortable 29°C (85°F), whilst at night 17°C (62°F) is normal.
On average July is the 6th wettest month of the year in Portland with around 103mm 4 inches of rain making it a damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 11 hours of sunshine per day.
August
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 25°C | 82mm | 10.2hrs | 12.8hrs |
The weather in August in Portland is characteristically warm, humid and a little damp.
It is perhaps the perfect month to visit Portland, with some surprisingly good weather at this time of year.
August is in the summer in Portland and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a muggy 28°C (83°F), whilst at night 15°C (59°F) is normal.
On average August is the 5th wettest month of the year in Portland with around 82mm 3.2 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.2 hours of sunshine per day.
September
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 22°C | 75mm | 8.8hrs | 14.2hrs |
Portland's weather in September is typically warm and reasonably dry in nature.
It is perhaps the perfect month to visit Portland, with some very good weather at this time of year.
September is in the fall / autumn in Portland and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 25°C (77°F), whilst at night 11°C (52°F) is normal.
On average September is the 4th wettest month of the year in Portland with around 75mm 2.9 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.8 hours of sunshine per day.
Portland weather in September »
October
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 16°C | 65mm | 7hrs | 15.4hrs |
October is a reasonably dry month in Portland and the temperature is generally mild.
Although outside the main holiday season, there is still plenty of reasonably acceptable weather around this time of year. This makes it an okay time to visit Portland.
October is in the fall / autumn in Portland and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a cool 18°C (64°F), whilst at night 5°C (41°F) is normal.
On average October is the 3rd wettest month of the year in Portland with around 65mm 2.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 7 hours of sunshine per day.
November
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 9°C | 79mm | 4.4hrs | 10.7hrs |
Cool and reasonably dry weather often prevails in Portland during the month of November
Based on weather alone, this is probably a time of year to avoid going to Portland for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
November is in the fall / autumn in Portland and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a cool 10°C (50°F), whilst at night 0°C (32°F) is normal.
On average November is the 2nd wettest month of the year in Portland with around 79mm 3.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.4 hours of sunshine per day.
Portland weather in November »
December
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 3°C | 70mm | 3.7hrs | 11.6hrs |
December in Portland is generally reasonably dry with the temperature being cold.
Based on weather alone, this is probably a time of year to avoid going to Portland for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
December is in the winter in Portland and is typically the warmest month of the year. Daytime maximum temperatures average around a freezing 3°C (37°F), whilst at night -6°C (21°F) is normal.
On average December is the wettest month of the year in Portland with around 70mm 2.7 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.
On the flip side this corresponds to an average of 3.7 hours of sunshine per day.
Other monthly averages
Portland weather stats
| Hottest month: | July | 28.8°C 83.8°F |
|---|---|---|
| Driest month: | February | 54mm 2.1ins |
| Sunniest month: | July | 11hrs |
| Coldest month: | January | -0.3°C 31.5°F |
| Wettest month: | July | 103mm 4.1ins |
| Warmest sea: | August | 23.5°C 74.3°F |
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