Portland weather in April 2025

Expect 12°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Portland in April. Check more long-term weather averages for Portland in April before you book your next holiday to Maine in 2025/2026.

  • 12°C maximum daytime temperature in April in Portland12
    12°C max day temperature
  • 7 hours of sunshine per day
  • 12 days with some rainfall in April in Portland12
    12 days with some rainfall
  • 1°C minimum night-time temperature in April in Portland1
    1°C min night temperature
  • 13 hours of daylight per day in April in Portland13
    13 hours of daylight per day
  • No heat & humidity in April in Portland0
    No heat & humidity
  • 105 mm monthly rainfall in April in Portland105
    105 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in April in Portland5
    5 (Moderate) UV index
  • 5°C sea temperature in April in Portland5
    5°C sea temperature

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The April 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 / mm)  |  Imperial (°F / inches)

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More about the USA

How warm is it in Portland in April?

Daytime temperatures usually reach 12°C in Portland in April, falling to 1°C at night.

How sunny is it in Portland in April?

There are normally 7 hours of bright sunshine each day in Portland in April - that's 51% of daylight hours.

Is the sea cold around Portland in April?

The average sea temperature around Portland in April is 5°C.

Does it rain in Portland in April?

There are usually 12 days with some rain in Portland in April and the average monthly rainfall is 105mm.

Portland April sunrise & sunset times

Browse the sunrise and sunset times for Portland in April 2025. Select a month to view Portland sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st April 2025 05:22 18:08
Tuesday, 15th April 2025 04:58 18:25
Wednesday, 30th April 2025 04:34 18:43

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