Washington

Roche Harbor, San Juan Island — Weekly Tide Table

Sep 20 – Sep 26, 2026 · Local station time · Heights in ft (MLLW)
Date Tide Curve High & Low Tides Sun Moon
Sun, Sep 20 6:30 AM 0.9 3:26 PM 7.1 9:30 PM 6.0 11:35 PM 5.6
6:56 AM
7:19 PM
4:50 PM
First Quarter · 68%
Mon, Sep 21 7:36 AM 0.9 4:00 PM 7.2 9:48 PM 5.6
6:57 AM
7:17 PM
5:16 PM
1:06 AM
Waxing Gibbous · 77%
Tue, Sep 22 12:56 AM 5.7 8:30 AM 0.9 4:25 PM 7.2 10:00 PM 5.2
6:59 AM
7:14 PM
5:37 PM
2:16 AM
Waxing Gibbous · 84%
Wed, Sep 23 2:09 AM 5.8 9:14 AM 0.9 4:42 PM 7.2 10:16 PM 4.5
7:00 AM
7:12 PM
5:55 PM
3:28 AM
Waxing Gibbous · 91%
Thu, Sep 24 3:13 AM 6.1 9:52 AM 1.1 4:56 PM 7.2 10:37 PM 3.6
7:01 AM
7:10 PM
6:10 PM
4:40 AM
Waxing Gibbous · 96%
Fri, Sep 25 4:12 AM 6.3 10:27 AM 1.5 5:09 PM 7.3 11:04 PM 2.6
7:03 AM
7:08 PM
6:25 PM
5:53 AM
Full Moon · 99%
Sat, Sep 26 5:07 AM 6.5 11:02 AM 2.1 5:27 PM 7.4 11:34 PM 1.4
7:04 AM
7:06 PM
6:41 PM
7:07 AM
Full Moon · 100%

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