Portland Weather in December, United Kingdom

Portland Averages December

PORTLAND AVERAGES FOR DECEMBER

• 

  What is Average Temperature?

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  The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month

  Temperature

  6°C

  44°F
• 

  What is Average High Low Temperature?

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  The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

  High Temperature

  8°C

  46°F
• 

  What is Average High Low Temperature?

  ---

  The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

  Low Temperature

  5°C

  41°F
• 

  What is Average Sea Temperature?

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  Average daily sea temperatures and divided by the number of days in the month. Sea Temperatures are taken from buoys, ships and even satellites can calculate sea temperature based on energy that is radiated from the sea's surface

  Sea Temperature

  12°C

  54°F
• 

  What is Average Rainfall?

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  The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

  Rainfall Days

  19 days
• 

  What is Average Rainfall?

  ---

  The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

  Rainfall

  70 mm