Portland weather in June 2026

Expect daytime maximum temperatures of 23°C in Portland, Maine in June based on long-term weather averages. There are 9 hours of sunshine per day on average with 11 days with some rainfall and typically 85 mm of rainfall in the month.

  • 23°C maximum daytime temperature in June in Portland23
    23°C max day temperature
  • 9 hours of sunshine per day
  • 11 days with some rainfall in June in Portland11
    11 days with some rainfall
  • 11°C minimum night-time temperature in June in Portland11
    11°C min night temperature
  • 15 hours of daylight per day in June in Portland15
    15 hours of daylight per day
  • No heat & humidity in June in Portland0
    No heat & humidity
  • 85 mm monthly rainfall in June in Portland85
    85 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in June in Portland8
    8 (Very High) UV index
  • 12°C sea temperature in June in Portland12
    12°C sea temperature

More about Portland

Portland by month

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

Recommended for Maine

GO Airport Shuttle discount code: 5% off airport transfers

  • Save EXTRA 5% on airport transfers worldwide
  • Book private taxis & shuttle buses with discount code
  • Enter in coupon box on 'Reservations' page
Show discount codeShow discount code ******WEB
Redeem GO Airport Shuttle discount code >>

Expires at 23:59 on Wednesday 31st Dec 2025

The June 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)

Back to top

More about the USA

How hot is it in Portland in June?

Daytime temperatures usually reach 23°C in Portland in June, falling to 11°C at night.

How sunny is it in Portland in June?

There are normally 9 hours of bright sunshine each day in Portland in June - that's 55% of daylight hours.

How warm is the sea around Portland in June?

The average sea temperature around Portland in June is 12°C.

Does it rain in Portland in June?

There are usually 11 days with some rain in Portland in June and the average monthly rainfall is 85mm.

Portland June sunrise & sunset times

Browse the sunrise and sunset times for Portland in June 2026. Select a month to view Portland sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st June 2026 04:02 19:16
Monday, 15th June 2026 03:59 19:24
Tuesday, 30th June 2026 04:03 19:26

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^