Flattop Island is a beach in San Juan Island, WA. Swell scores it 0–100 in
real time from live marine and weather data and rates 16 beach activities
including swimming, surfing, paddleboarding and fishing, with tide times
and a 7-day outlook.
Is Flattop Island good today?
Flattop Island is scoring 47 out of 100 right now, with water 52°F, air 44°F, wind 4 mph. It's rating best for bonfire today.