Portland Weather in August

With daytime temperatures of 28°C (82°F) and nighttime lows of 14°C (57°F), August in Portland brings high temperatures during the day. It is also the driest month of the year, with minimal rainfall.

Rainfall in Portland in August

This is the driest month, making it a great choice for planning outdoor excursions. Based on our climate data of the past 30 years, about 3 days of rain are anticipated, with 11 mm (0.4 in) on average. The occasional light shower is possible, but rain is rarely an issue this month.

Temperature in Portland in August

August is a excellent month in Portland, with 28°C (82°F) during the day and 14°C (57°F) at night. The summer season is characteristic of August. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights drop to around 14°C (57°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable. On average, this month sees the highest temperatures of the year. Worth packing a few lighter outfits.

Sunshine in Portland in August

Expect a lot of sunshine this month, with about 298 hours of sun. These sunny conditions add to the overall experience.

Wind Speed in Portland in August

August has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.

If you're inclined towards comfortable temperatures and drier conditions, August is a good time to visit Portland.