Portland weather in December 2019

  • 2°C maximum daytime temperature in December in Portland2
    2°C max day temperature
  • 4 hours of sunshine per day
  • 12 days with some rainfall in December in Portland12
    12 days with some rainfall
  • -8°C minimum night-time temperature in December in Portland-8
    -8°C min night temperature
  • 9 hours of daylight per day in December in Portland9
    9 hours of daylight per day
  • No heat & humidity in December in Portland0
    No heat & humidity
  • 117 mm monthly rainfall in December in Portland117
    117 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in December in Portland1
    1 (Low) UV index
  • 7°C sea temperature in December in Portland7
    7°C sea temperature

Going to Portland? Find the best month to visit Portland based on the weather.

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Expect 2°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Portland in December. Check more long-term weather averages for Portland in December before you book your next holiday to Maine in 2019/2020.

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More about Portland

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The December weather guide for Portland, Maine 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)

Guide to Portland weather in December

The average maximum daytime temperature in Portland in December is a cold 2°C (36°F). The average night-time temperature is usually a very cold -8°C (18°F). There are usually 4 hours of bright sunshine each day, which represents 48% of the 9 hours of daylight.

Expect 117mm (4.6 inches) of rainfall across the whole of December with 12 days with some rain falling. Maximum UV levels will be low (1 UV index) at midday when the skies are clear.

The average sea temperature in and around Portland in December is 7°C (45°F).

Portland sunrise & sunset times for December 2019

Browse the sunrise & sunset times for Portland in December 2019. Select a month to view Portland sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st December 2019 06:54 16:05
Monday, 2nd December 2019 06:55 16:05
Tuesday, 3rd December 2019 06:57 16:05
Wednesday, 4th December 2019 06:58 16:05
Thursday, 5th December 2019 06:59 16:04
Friday, 6th December 2019 07:00 16:04
Saturday, 7th December 2019 07:01 16:04
Sunday, 8th December 2019 07:02 16:04
Monday, 9th December 2019 07:02 16:04
Tuesday, 10th December 2019 07:03 16:04
Wednesday, 11th December 2019 07:04 16:04
Thursday, 12th December 2019 07:05 16:04
Friday, 13th December 2019 07:06 16:04
Saturday, 14th December 2019 07:07 16:04
Sunday, 15th December 2019 07:07 16:05
Monday, 16th December 2019 07:08 16:05
Tuesday, 17th December 2019 07:09 16:05
Wednesday, 18th December 2019 07:09 16:06
Thursday, 19th December 2019 07:10 16:06
Friday, 20th December 2019 07:11 16:06
Saturday, 21st December 2019 07:11 16:07
Sunday, 22nd December 2019 07:12 16:07
Monday, 23rd December 2019 07:12 16:08
Tuesday, 24th December 2019 07:13 16:09
Wednesday, 25th December 2019 07:13 16:09
Thursday, 26th December 2019 07:13 16:10
Friday, 27th December 2019 07:14 16:10
Saturday, 28th December 2019 07:14 16:11
Sunday, 29th December 2019 07:14 16:12
Monday, 30th December 2019 07:14 16:13
Tuesday, 31st December 2019 07:14 16:14
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