St. Thomas Climate: Weather by Month and Best Time to Visit

Best months for St. Thomas: August, September, June, July.

Year at a glance

-1° -7° J 0° -7° F 4° -3° M 10° 3° A 18° 10° M 23° 16° J 26° 19° J 25° 18° A 21° 15° S 14° 8° O 8° 3° N 2° -2° D Rainy days

Weather by month

MonthAvg highAvg lowRainfall Rainy daysHumiditySunshine Score
January -1°C-7°C75 mm 11– – 3.6
February 0°C-7°C59 mm 9– – 3.9
March 4°C-3°C73 mm 10– – 4.4
April 10°C3°C94 mm 12– – 5.6
May 18°C10°C94 mm 12– – 6.7
June 23°C16°C100 mm 11– – 7.5
July 26°C19°C96 mm 12– – 7.4
August 25°C18°C83 mm 10– – 7.7
September 21°C15°C84 mm 9– – 7.7
October 14°C8°C86 mm 12– – 6.3
November 8°C3°C80 mm 11– – 5.3
December 2°C-2°C74 mm 11– – 4.1