average humidity in london
Countries A-Z: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | W | Y | Z. Climate & Temperature > Uk > London, England Climate > Relative Humidity. The average annual relative humidity is 79.6% and average monthly relative humidity ranges from 70% in June to 89% in December.