Portland weather by month & the best time to visit
United States · city break · Mediterranean climate
The best time to visit Portland is July — its sunniest month (Sunshine Score 89/100), with August and June close behind. Portland averages about 2,058 hours of sunshine a year. Daytime highs around 28°C / 82°F and roughly 11 mm of rain in July.
When is the best time to visit Portland?
For sunshine, the best time to visit Portland is July, then August and June. The dullest month is January (0/100, 216 mm of rain). The full month-by-month picture is in the table below.
How sunny is Portland?
Portland gets a moderate 2,058 hours of sunshine a year. 89 Sunshine Score points separate July (89) from January (0), so the month you pick matters. It ranks #383 of 580 destinations in United States for annual sunshine, below the national median of 2,279 hours. Rain has a clear season: the wettest stretch, around December, carries about 46% of the annual 1,484 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | 8° / 46°F | 2° / 36°F | 216 mm | 1 |
| February | 5 | 9° / 48°F | 2° / 36°F | 144 mm | 2 |
| March | 21 | 12° / 54°F | 4° / 39°F | 178 mm | 3 |
| April | 40 | 15° / 59°F | 5° / 41°F | 119 mm | 4 |
| May | 70 | 19° / 66°F | 9° / 48°F | 79 mm | 5 |
| June | 81 | 22° / 72°F | 11° / 52°F | 55 mm | 6 |
| July | 89 | 28° / 82°F | 13° / 55°F | 11 mm | 7 |
| August | 87 | 29° / 84°F | 14° / 57°F | 20 mm | 6 |
| September | 80 | 25° / 77°F | 11° / 52°F | 57 mm | 5 |
| October | 55 | 18° / 64°F | 8° / 46°F | 137 mm | 3 |
| November | 16 | 11° / 52°F | 4° / 39°F | 217 mm | 1 |
| December | 0 | 7° / 45°F | 2° / 36°F | 251 mm | 0 |
Nearest destinations
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Head-to-head
How Portland compares month by month: Portland vs Seattle · Portland vs Eugene · Portland vs Medford · Portland vs Redmond · all comparisons
Portland: questions and answers
What kind of destination is Portland?
Portland is a city break in United States with a Mediterranean climate.
How many hours of sunshine does Portland get a year?
Portland gets about 2,058 hours of sunshine a year, at its best around July.
When is the best time to visit Portland?
The sunniest time to visit Portland is July, when the Sunshine Score peaks at 89/100 (with August and June close behind). Expect daytime highs around 28°C / 82°F.
What is the least sunny month in Portland?
January is the least sunny month in Portland, scoring 0/100 with about 216 mm of rain.
How strong is the sun in Portland?
The typical midday UV index in Portland peaks around 7 (high) in July, easing to about 0 (low) in December. Month-by-month midday UV values are in the UV column of the table on this page.
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