Which is the hottest month in Portland?

The hottest time of year in Portland is normally July. Expect maximum daytime temperatures to reach 26°C with low heat and humidity.

Which month has the most rain in Portland?

In terms of rainfall, November is usually the wettest month in Portland with 131mm on average. There are normally 12 days in November with some rain.

When is it sunniest in Portland?

The sunniest time of year in Portland is normally August with bright sunshine on average for 60% of daylight hours; that's 8 hours of sunshine per day.

When is the sea warmest in Portland?

The sea is usually at its warmest in Portland in August when the water temperature reaches 17°C.

Best time to visit Portland

Q: When is the best time to visit Portland?

The best time to visit Portland is June, July and August based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C.

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Portland by month

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

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When is the best time to visit Portland?

The best time to visit Portland is June, July and August based on the following average weather conditions.

Maximum daytime temperature = 72 - 86°F [remove]

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Max Day Temperature (°F)

32
Jan
34
Feb
43
Mar
54
Apr
64
May
73
Jun
79
Jul
77
Aug
70
Sep
59
Oct
48
Nov
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Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Maine (Portland) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C) | Imperial (°F)