Washington

Mailboat Slough, Willapa River — Weekly Tide Table

May 17 – May 23, 2026 · Local station time · Heights in ft (MLLW)
Date Tide Curve High & Low Tides Sun Moon
Sun, May 17 1:31 AM 11.0 8:20 AM -2.7 3:06 PM 8.2 8:11 PM 2.6
5:41 AM
8:45 PM
5:38 AM
10:50 PM
New Moon · 2%
Mon, May 18 2:17 AM 11.0 9:07 AM -2.8 3:59 PM 8.2 8:59 PM 2.8
5:39 AM
8:46 PM
6:31 AM
11:57 PM
Waxing Crescent · 6%
Tue, May 19 3:06 AM 10.8 9:57 AM -2.6 4:53 PM 8.0 9:52 PM 3.0
5:38 AM
8:47 PM
7:37 AM
Waxing Crescent · 12%
Wed, May 20 3:58 AM 10.3 10:49 AM -2.1 5:48 PM 7.9 10:52 PM 3.2
5:37 AM
8:48 PM
8:56 AM
12:49 AM
Waxing Crescent · 21%
Thu, May 21 4:56 AM 9.5 11:44 AM -1.4 6:46 PM 7.9
5:36 AM
8:49 PM
10:18 AM
1:27 AM
Waxing Crescent · 31%
Fri, May 22 12:01 AM 3.3 5:59 AM 8.7 12:41 PM -0.6 7:44 PM 8.0
5:35 AM
8:50 PM
11:40 AM
1:56 AM
First Quarter · 42%
Sat, May 23 1:17 AM 3.1 7:09 AM 7.8 1:40 PM 0.2 8:41 PM 8.2
5:34 AM
8:52 PM
12:59 PM
2:18 AM
First Quarter · 53%

▲ high tide   ▼ low tide · heights in ft above MLLW · predictions derived from NOAA data for station TWC0940 · view the interactive daily chart