Portland Weather in August
United States · 30-year monthly averages
🌟 Great time to visit
August in Portland is warm, with average daytime highs around 28°C (82°F) and nighttime lows near 15°C (59°F). Expect roughly 14mm of precipitation spread over about 3 rainy days, and rain is rare.
Avg high
28°C
82°F
Avg low
15°C
59°F
Rainfall
14mm
very dry
Rainy days
3
days with ≥1mm
🎒 What to pack
- light summer clothing
- sunscreen and sunglasses
August vs the rest of the year
FAQ
- How hot is Portland in August?
- August in Portland is warm, with average daytime highs around 28°C (82°F) and nighttime lows near 15°C (59°F). Expect roughly 14mm of precipitation spread over about 3 rainy days, and rain is rare.
- Does it rain a lot in Portland in August?
- Portland sees around 14mm of precipitation in August on average — very dry by global standards.
- Is August a good time to visit Portland?
- August is one of the best months to visit Portland — comfortable temperatures and manageable rainfall.