Places › Portland, ME › August

Portland in August

One of the best months — score 89 of 100

Typical August days in Portland reach about 79°F with nights near 60°F.

What to pack for Portland in August

• A light jacket or fleece for evenings.
• Layers — afternoons run about 19° warmer than mornings.
• A compact rain layer — about 9 days see rain in a typical August.

Every packing line is triggered by a number on this page — the rules are on How we pick.

August vs. the alternatives

The whole year in Portland

Averages are the 1991–2020 climate normals (NOAA National Centers for Environmental Information) for the station named on each page. Rain days = days with at least 0.01 in of precipitation. Daylight is computed for the middle of the month.