Best time to visit Portland

Find the best time to visit Portland and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

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 July based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

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Max Day Temperature (°C)

  • 0°C maximum daytime temperature in January in Portland0
    Jan
  • 1°C maximum daytime temperature in February in Portland1
    Feb
  • 6°C maximum daytime temperature in March in Portland6
    Mar
  • 12°C maximum daytime temperature in April in Portland12
    Apr
  • 18°C maximum daytime temperature in May in Portland18
    May
  • 23°C maximum daytime temperature in June in Portland23
    Jun
  • 26°C maximum daytime temperature in July in Portland26
    Jul
  • 25°C maximum daytime temperature in August in Portland25
    Aug
  • 21°C maximum daytime temperature in September in Portland21
    Sep
  • 15°C maximum daytime temperature in October in Portland15
    Oct
  • 9°C maximum daytime temperature in November in Portland9
    Nov
  • 2°C maximum daytime temperature in December in Portland2
    Dec

Hours of Sunshine (daily)

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

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

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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