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Temperature in Maine in May

Maine is a region in the United States of America. May in has maximum daytime temperatures ranging from moderate in Northeast Harbor with 16°C to pleasant temperatures in Sanford with 20°C. Nighttime temperatures generally drop to 8°C in Sanford and 7°C in Northeast Harbor.

What is the temperature of the different cities in Maine in May?

Find the average daytime temperatures in May for the most popular destinations in Maine on the map below. Click on a destination dot for more detailed information.

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Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

  • What is the warmest city in May in Maine?
  • Sanford tops the warmest city list in our database with average maximum daytime temperatures around 20°C and a minimum nighttime temperature of around 8°C.

  • What is the coldest city in May in Maine?
  • The coldest city in May in Maine is Northeast Harbor when we check our database. The maximum daytime temperatures are around 16°C and minimum nighttime temperatures fall around 7°C.

  • What is the water's temperature in May?
  • The water temperature averages approximately 8°C in Portland this month, so not the best month to swim.

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