Sequim Weather Facts
Sequim has moderately warm summers, light rainfall and mild winters. To the right is a rain fall (precipitation) chart which shows the relative rainfall. Sequim averages 15" per year due to the precipitation pattern caused by the storm blocking effect of the Olympic Mountains. The temperature is perfect with only an approximate 20 degree variation from night to day. The graph below shows the highs and lows for Sequim in 1999.