Best time to visit Portland

Find the best time to visit Portland and plan your perfect trip in 2024/2025. Get holiday inspiration, weather guides, travel advice and find great deals.

Portland by month

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When is the best time to visit Portland?

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

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Hours of Sunshine (daily)

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Best time to visit

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 / mm)  |  Imperial (°F / inches)

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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.

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