Climate almanac
Portland
Maine, United States · 43.66°, -70.26°
What is the weather like in Portland in August?
In August, Portland is typically 73°F (23°C) during the day and 65°F (18°C) at night. The month brings about 3.2 in (82 mm) of precipitation in total.
- Average high73°F (23°C)
- Average low65°F (18°C)
- Precipitation3.2 in (82 mm)
- Clear or mostly clear days11
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)