South Portland Weather in August

In South Portland, August brings high daytime temperatures around 25°C (77°F), with nights cooling to 15°C (59°F). Expect quite a bit of rainfall this month.

Rainfall in South Portland in August

Based on our climate data of the past 30 years, about 10 days of rain are anticipated, with 108 mm (4.3 in) on average. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in South Portland in August

Daytime temperatures in South Portland reach 25°C (77°F) in August, dropping to 15°C (59°F) at night. August is in the summer season. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With lows of 15°C (59°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in South Portland in August

Expect sunny days throughout the month, with an estimated 267 hours of sunshine. This makes it a pleasant time to visit South Portland.

Average water temperature in August

The water temperature is 18°C (64°F). It's not warm, but most people find it perfectly fine for a swim once they're in.

If you're a fan of comfortable temperatures and drier conditions, August is a great time to visit.