Best Time to Visit South Portland: Month-by-Month Guide

Best months for South Portland: August, July.

  • Best months for South Portland: August, July.
  • Peak season is July, August, September. Expect higher prices and more visitors (estimated from the climate, not from visitor counts).
  • Shoulder season: June. Good weather without the busiest period.
  • Wettest months: December, May, March.
  • The least pleasant month is January (score 3.7).

Year at a glance

0° -6° J 1° -6° F 4° -2° M 9° 3° A 14° 9° M 19° 14° J 22° 17° J 22° 17° A 19° 14° S 13° 9° O 8° 3° N 3° -2° D Rainy days

Weather by month

MonthAvg highAvg lowRainfall Rainy daysHumiditySunshine Score
January 0°C-6°C99 mm 10– – 3.7
February 1°C-6°C91 mm 9– – 4.0
March 4°C-2°C117 mm 11– – 4.3
April 9°C3°C119 mm 11– – 5.4
May 14°C9°C98 mm 11– – 6.2
June 19°C14°C102 mm 10– – 7.1
July 22°C17°C78 mm 9– – 7.8
August 22°C17°C81 mm 8– – 7.9
September 19°C14°C95 mm 9– – 7.3
October 13°C9°C137 mm 10– – 6.1
November 8°C3°C113 mm 10– – 5.3
December 3°C-2°C126 mm 11– – 4.1

Frequently asked questions

When is the best time to visit South Portland?

The best months are August, July.

When is the rainy season in South Portland?

The wettest months are December, May, March.