Portland weather in August 2024

Expect 77°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Portland in August. Check more long-term weather averages for Portland in August before you book your next holiday to Maine in 2024/2025.

77
77°F max day temperature
8
8 hours of sunshine per day
10
10 days with some rainfall
57
57°F min night temperature
14
14 hours of daylight per day
L
Low heat & humidity
3.0
3.0 inches of monthly rainfall
7
7 (High) UV index
63
63°F sea temperature

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The August weather guide for Maine (Portland) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C) | Imperial (°F)

More about the USA

How hot is it in Portland in August?

Daytime temperatures usually reach 77°F in Portland in August with low heat and humidity, falling to 57°F at night.

How sunny is it in Portland in August?

There are normally 8 hours of bright sunshine each day in Portland in August - that's 60% of daylight hours.

How warm is the sea around Portland in August?

The average sea temperature around Portland in August is 63°F.

Does it rain in Portland in August?

There are usually 10 days with some rain in Portland in August and the average monthly rainfall is 3.0 inches.

What is the chance of a hurricane in Portland in August?

On average less than 1 day in August in Portland is likely to be affected by the passage of one or more tropical storms.

Portland August sunrise & sunset times

Browse the sunrise and sunset times for Portland in August 2024. Select a month to view Portland sunrise and sunset times for the next 12 months.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Thursday, 1st August 2024	05:31	20:03
Friday, 16th August 2024	05:47	19:42
Saturday, 31st August 2024	06:04	19:17

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Maine - quick facts
Flight time^✝	11 hours
Time difference	UK -5 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Why visit?	Nature
Tourist info	Maine Office of Tourism