Washington

Roche Harbor, San Juan Island — Weekly Tide Table

Jul 12 – Jul 18, 2026 · Local station time · Heights in ft (MLLW)
Date Tide Curve High & Low Tides Sun Moon
Sun, Jul 12 1:20 AM 8.0 9:34 AM -3.1 6:07 PM 7.8 9:46 PM 7.4
5:23 AM
9:15 PM
2:51 AM
8:38 PM
New Moon · 4%
Mon, Jul 13 2:15 AM 7.9 10:23 AM -3.4 6:45 PM 8.1 10:44 PM 7.2
5:24 AM
9:14 PM
4:01 AM
9:26 PM
New Moon · 1%
Tue, Jul 14 3:19 AM 7.8 11:12 AM -3.5 7:21 PM 8.2 11:41 PM 6.8
5:25 AM
9:13 PM
5:22 AM
10:01 PM
New Moon · 0%
Wed, Jul 15 4:25 AM 7.6 11:59 AM -3.1 7:56 PM 8.3
5:26 AM
9:12 PM
6:48 AM
10:26 PM
New Moon · 3%
Thu, Jul 16 12:41 AM 6.2 5:30 AM 7.2 12:46 PM -2.3 8:30 PM 8.2
5:27 AM
9:11 PM
8:13 AM
10:46 PM
Waxing Crescent · 8%
Fri, Jul 17 1:44 AM 5.4 6:35 AM 6.6 1:31 PM -1.3 9:02 PM 8.2
5:28 AM
9:11 PM
9:33 AM
11:02 PM
Waxing Crescent · 15%
Sat, Jul 18 2:49 AM 4.5 7:42 AM 5.9 2:15 PM 0.0 9:31 PM 8.1
5:29 AM
9:10 PM
10:51 AM
11:17 PM
Waxing Crescent · 23%

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