Massachusetts

Plum Island, Merrimack River Entrance — Tide Calendar

September 2026 · Local station time · Heights in ft (MLLW)
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Minus Tides Weekly View Daily Chart
Date Tide Curve High & Low Tides Sun Moon
Tue, Sep 1 ▲ 2:45 AM 8.4 ▼ 8:53 AM 0.3 ▲ 3:04 PM 8.9 ▼ 9:25 PM -0.1
6:08 AM
7:22 PM
↑ 9:03 PM
↓ 11:08 AM
Waning Gibbous · 79%
Wed, Sep 2 ▲ 3:33 AM 8.1 ▼ 9:39 AM 0.5 ▲ 3:53 PM 9.0 ▼ 10:18 PM 0.0
6:09 AM
7:20 PM
↑ 9:38 PM
↓ 12:26 PM
Last Quarter · 69%
Thu, Sep 3 ▲ 4:26 AM 7.8 ▼ 10:31 AM 0.7 ▲ 4:47 PM 8.9 ▼ 11:16 PM 0.1
6:10 AM
7:18 PM
↑ 10:23 PM
↓ 1:44 PM
Last Quarter · 57%
Fri, Sep 4 ▲ 5:25 AM 7.5 ▼ 11:28 AM 0.9 ▲ 5:46 PM 8.8
6:11 AM
7:16 PM
↑ 11:20 PM
↓ 2:58 PM
Last Quarter · 46%
Sat, Sep 5 ▼ 12:19 AM 0.2 ▲ 6:28 AM 7.3 ▼ 12:30 PM 1.0 ▲ 6:50 PM 8.8
6:12 AM
7:15 PM
↑ —
↓ 4:02 PM
Last Quarter · 34%
Sun, Sep 6 ▼ 1:24 AM 0.2 ▲ 7:34 AM 7.3 ▼ 1:36 PM 1.0 ▲ 7:56 PM 8.9
6:13 AM
7:13 PM
↑ 12:29 AM
↓ 4:53 PM
Waning Crescent · 23%
Mon, Sep 7 ▼ 2:30 AM 0.1 ▲ 8:40 AM 7.5 ▼ 2:42 PM 0.8 ▲ 9:00 PM 9.0
6:14 AM
7:11 PM
↑ 1:47 AM
↓ 5:33 PM
Waning Crescent · 14%
Tue, Sep 8 ▼ 3:31 AM -0.1 ▲ 9:40 AM 7.8 ▼ 3:44 PM 0.5 ▲ 10:00 PM 9.2
6:15 AM
7:09 PM
↑ 3:07 AM
↓ 6:05 PM
Waning Crescent · 7%
Wed, Sep 9 ▼ 4:26 AM -0.3 ▲ 10:35 AM 8.2 ▼ 4:41 PM 0.2 ▲ 10:55 PM 9.2
6:16 AM
7:08 PM
↑ 4:25 AM
↓ 6:30 PM
New Moon · 2%
Thu, Sep 10 ▼ 5:17 AM -0.4 ▲ 11:25 AM 8.6 ▼ 5:34 PM -0.1 ▲ 11:46 PM 9.2
6:17 AM
7:06 PM
↑ 5:40 AM
↓ 6:53 PM
New Moon · 0%
Fri, Sep 11 ▼ 6:03 AM -0.4 ▲ 12:12 PM 8.8 ▼ 6:23 PM -0.3
6:18 AM
7:04 PM
↑ 6:52 AM
↓ 7:13 PM
New Moon · 1%
Sat, Sep 12 ▲ 12:33 AM 9.1 ▼ 6:47 AM -0.3 ▲ 12:56 PM 9.0 ▼ 7:09 PM -0.3
6:19 AM
7:02 PM
↑ 8:02 AM
↓ 7:33 PM
New Moon · 3%
Sun, Sep 13 ▲ 1:18 AM 8.8 ▼ 7:29 AM -0.1 ▲ 1:38 PM 9.0 ▼ 7:54 PM -0.3
6:21 AM
7:01 PM
↑ 9:10 AM
↓ 7:55 PM
Waxing Crescent · 8%
Mon, Sep 14 ▲ 2:02 AM 8.5 ▼ 8:10 AM 0.2 ▲ 2:19 PM 8.9 ▼ 8:38 PM -0.1
6:22 AM
6:59 PM
↑ 10:18 AM
↓ 8:19 PM
Waxing Crescent · 14%
Tue, Sep 15 ▲ 2:46 AM 8.1 ▼ 8:51 AM 0.6 ▲ 3:02 PM 8.7 ▼ 9:24 PM 0.2
6:23 AM
6:57 PM
↑ 11:25 AM
↓ 8:47 PM
Waxing Crescent · 22%
Wed, Sep 16 ▲ 3:32 AM 7.7 ▼ 9:35 AM 1.0 ▲ 3:47 PM 8.4 ▼ 10:12 PM 0.5
6:24 AM
6:55 PM
↑ 12:30 PM
↓ 9:21 PM
Waxing Crescent · 30%
Thu, Sep 17 ▲ 4:20 AM 7.3 ▼ 10:23 AM 1.3 ▲ 4:36 PM 8.1 ▼ 11:04 PM 0.9
6:25 AM
6:53 PM
↑ 1:31 PM
↓ 10:03 PM
First Quarter · 39%
Fri, Sep 18 ▲ 5:12 AM 7.0 ▼ 11:14 AM 1.7 ▲ 5:29 PM 7.8 ▼ 11:59 PM 1.1
6:26 AM
6:52 PM
↑ 2:25 PM
↓ 10:52 PM
First Quarter · 49%
Sat, Sep 19 ▲ 6:08 AM 6.7 ▼ 12:10 PM 1.9 ▲ 6:26 PM 7.6
6:27 AM
6:50 PM
↑ 3:12 PM
↓ 11:49 PM
First Quarter · 58%
Sun, Sep 20 ▼ 12:57 AM 1.3 ▲ 7:06 AM 6.6 ▼ 1:09 PM 1.9 ▲ 7:24 PM 7.6
6:28 AM
6:48 PM
↑ 3:51 PM
↓ —
First Quarter · 67%
Mon, Sep 21 ▼ 1:56 AM 1.3 ▲ 8:05 AM 6.7 ▼ 2:08 PM 1.8 ▲ 8:22 PM 7.7
6:29 AM
6:46 PM
↑ 4:22 PM
↓ 12:52 AM
Waxing Gibbous · 76%
Tue, Sep 22 ▼ 2:52 AM 1.1 ▲ 9:00 AM 6.9 ▼ 3:03 PM 1.6 ▲ 9:15 PM 7.9
6:30 AM
6:44 PM
↑ 4:49 PM
↓ 1:57 AM
Waxing Gibbous · 83%
Wed, Sep 23 ▼ 3:41 AM 0.9 ▲ 9:48 AM 7.2 ▼ 3:53 PM 1.3 ▲ 10:03 PM 8.1
6:31 AM
6:43 PM
↑ 5:12 PM
↓ 3:03 AM
Waxing Gibbous · 90%
Thu, Sep 24 ▼ 4:24 AM 0.7 ▲ 10:31 AM 7.6 ▼ 4:38 PM 0.9 ▲ 10:48 PM 8.3
6:32 AM
6:41 PM
↑ 5:33 PM
↓ 4:09 AM
Waxing Gibbous · 95%
Fri, Sep 25 ▼ 5:04 AM 0.5 ▲ 11:12 AM 8.0 ▼ 5:21 PM 0.5 ▲ 11:30 PM 8.4
6:33 AM
6:39 PM
↑ 5:53 PM
↓ 5:16 AM
Full Moon · 99%
Sat, Sep 26 ▼ 5:43 AM 0.3 ▲ 11:50 AM 8.4 ▼ 6:03 PM 0.1
6:34 AM
6:37 PM
↑ 6:14 PM
↓ 6:25 AM
Full Moon · 100%
Sun, Sep 27 ▲ 12:12 AM 8.5 ▼ 6:21 AM 0.2 ▲ 12:29 PM 8.8 ▼ 6:45 PM -0.2
6:36 AM
6:35 PM
↑ 6:37 PM
↓ 7:35 AM
Full Moon · 99%
Mon, Sep 28 ▲ 12:54 AM 8.6 ▼ 7:01 AM 0.2 ▲ 1:09 PM 9.1 ▼ 7:29 PM -0.5
6:37 AM
6:34 PM
↑ 7:03 PM
↓ 8:49 AM
Waning Gibbous · 96%
Tue, Sep 29 ▲ 1:38 AM 8.5 ▼ 7:42 AM 0.2 ▲ 1:52 PM 9.4 ▼ 8:15 PM -0.6
6:38 AM
6:32 PM
↑ 7:35 PM
↓ 10:05 AM
Waning Gibbous · 90%
Wed, Sep 30 ▲ 2:24 AM 8.4 ▼ 8:26 AM 0.3 ▲ 2:38 PM 9.4 ▼ 9:05 PM -0.5
6:39 AM
6:30 PM
↑ 8:15 PM
↓ 11:24 AM
Waning Gibbous · 82%

▲ high tide   ▼ low tide · heights in ft above MLLW · predictions derived from NOAA data for station 8440452 · view the interactive daily chart