Washington

Roche Harbor, San Juan Island — Weekly Tide Table

Aug 30 – Sep 5, 2026 · Local station time · Heights in ft (MLLW) · Negative tides only
Date Tide Curve High & Low Tides Sun Moon
Thu, Sep 3 3:48 AM -0.5 11:43 AM 6.1 3:28 PM 6.0 9:03 PM 7.2
6:32 AM
7:54 PM
10:30 PM
2:54 PM
Last Quarter · 56%
Fri, Sep 4 4:47 AM -0.8 1:39 PM 6.4 4:42 PM 6.7 9:40 PM 7.1
6:34 AM
7:52 PM
11:27 PM
4:09 PM
Last Quarter · 44%
Sat, Sep 5 5:52 AM -1.0 2:57 PM 6.9 6:30 PM 7.0 10:42 PM 6.9
6:35 AM
7:50 PM
5:10 PM
Last Quarter · 33%

▲ high tide   ▼ low tide · heights in ft above MLLW · predictions derived from NOAA data for station 9449834 · view the interactive daily chart