Washington

Roche Harbor, San Juan Island — Weekly Tide Table

Oct 18 – Oct 24, 2026 · Local station time · Heights in ft (MLLW)
Date Tide Curve High & Low Tides Sun Moon
Sun, Oct 18 4:26 AM 0.7 1:32 PM 7.4
7:36 AM
6:21 PM
3:19 PM
First Quarter · 52%
Mon, Oct 19 5:30 AM 1.2 2:13 PM 7.4 9:09 PM 5.5 11:10 PM 5.1
7:38 AM
6:19 PM
3:42 PM
12:03 AM
First Quarter · 61%
Tue, Oct 20 6:34 AM 1.6 2:41 PM 7.4 9:16 PM 4.8
7:39 AM
6:17 PM
4:00 PM
1:14 AM
Waxing Gibbous · 70%
Wed, Oct 21 12:42 AM 5.1 7:32 AM 1.9 3:00 PM 7.4 9:24 PM 4.0
7:41 AM
6:15 PM
4:16 PM
2:25 AM
Waxing Gibbous · 79%
Thu, Oct 22 2:09 AM 5.3 8:22 AM 2.4 3:15 PM 7.4 9:40 PM 3.0
7:42 AM
6:13 PM
4:31 PM
3:37 AM
Waxing Gibbous · 87%
Fri, Oct 23 3:25 AM 5.7 9:06 AM 2.9 3:31 PM 7.5 10:02 PM 1.7
7:44 AM
6:11 PM
4:46 PM
4:50 AM
Waxing Gibbous · 93%
Sat, Oct 24 4:30 AM 6.3 9:47 AM 3.6 3:51 PM 7.6 10:30 PM 0.4
7:46 AM
6:10 PM
5:03 PM
6:05 AM
Full Moon · 97%

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