About Birch Bay, WA

With a population of around 8,400, Birch Bay sits in Washington, United States. The city operates in the Pacific Time Zone.

Expect a temperate oceanic climate in Birch Bay: average highs of 73°F in midsummer, lows near 34°F in midwinter, and an annual mean of 51°F. Precipitation totals roughly 35 inches per year, concentrated around November, with July typically the driest month.