Friday Harbor Weather

Hey Seattle, get out of the rain anytime of year!
San Juan Island is located in a rain shadow cast by the spectacular
mountains of the Olympic Peninsula and Vancouver Island. While
Seattle is drenched in roughly 58 inches of rain per year, San
Juan Island averages only 29 inches. Unlike most of the Pacific
Northwest, we see the sun an average of 247 day a year. So if
you need a break from the gray drizzle, it’s just a short trip
from the city to San Juan Island. And for just $75, San Juan Airlines
can get you here from Seattle in about 25 minutes, any day of
the week.

Visitors to San Juan Island can expect sunny summer days with
average high temperatures rarely exceeding the mid-70s (24 C).
Summer evening temperatures are cooled by ocean breezes to an
average low around 49 degrees (9 C). In winter, average high temperatures
are around the mid-40’s (7 C), with average winter lows near 35
degrees (2 C). The constant sunshine is something we’ve just had
to learn to live with.