Washington

Roche Harbor, San Juan Island — Weekly Tide Table

Mar 15 – Mar 21, 2026 · Local station time · Heights in ft (MLLW)
Date Tide Curve High & Low Tides Sun Moon
Sun, Mar 15 4:54 AM 7.4 10:09 AM 5.9 2:07 PM 6.2 9:30 PM 0.4
7:29 AM
7:17 PM
6:09 AM
3:36 PM
Waning Crescent · 12%
Mon, Mar 16 5:11 AM 7.4 10:26 AM 5.2 3:13 PM 6.4 10:08 PM 0.5
7:27 AM
7:18 PM
6:29 AM
4:52 PM
Waning Crescent · 6%
Tue, Mar 17 5:24 AM 7.5 10:51 AM 4.3 4:15 PM 6.6 10:44 PM 0.8
7:25 AM
7:20 PM
6:46 AM
6:08 PM
New Moon · 2%
Wed, Mar 18 5:39 AM 7.6 11:22 AM 3.1 5:15 PM 6.8 11:20 PM 1.5
7:23 AM
7:21 PM
7:01 AM
7:25 PM
New Moon · 0%
Thu, Mar 19 5:57 AM 7.7 11:56 AM 1.9 6:13 PM 6.9 11:57 PM 2.4
7:20 AM
7:23 PM
7:17 AM
8:45 PM
New Moon · 1%
Fri, Mar 20 6:19 AM 7.8 12:35 PM 0.7 7:13 PM 7.0
7:18 AM
7:24 PM
7:34 AM
10:07 PM
New Moon · 4%
Sat, Mar 21 12:36 AM 3.4 6:43 AM 7.8 1:17 PM -0.4 8:17 PM 7.0
7:16 AM
7:26 PM
7:54 AM
11:33 PM
Waxing Crescent · 9%

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