Boston Harbor (Deer Island Light) (depth 28 ft), Massachusetts Current
42.3378° N, 70.9558° W
Flood direction 265° true
Ebb direction 100° true

April 2026

DaySlackFlood

Slack
Ebb
SlackFlood

Slack
Ebb
SlackFlood

SlackPhaseSunriseSunsetMoonriseMoonset
Wed 013:10 AM EDT −1.5 kt5:24 AM EDT8:45 AM EDT 1.4 kt11:47 AM EDT3:32 PM EDT −1.5 kt5:45 PM EDT9:04 PM EDT 1.4 ktFull Moon6:26 AM EDT7:09 PM EDT7:02 PM EDT6:01 AM EDT
Thu 0212:06 AM EDT3:59 AM EDT −1.5 kt6:13 AM EDT9:35 AM EDT 1.4 kt12:33 PM EDT4:18 PM EDT −1.5 kt6:28 PM EDT9:49 PM EDT 1.4 kt6:24 AM EDT7:11 PM EDT8:08 PM EDT6:21 AM EDT
Fri 0312:46 AM EDT4:44 AM EDT −1.5 kt6:58 AM EDT10:23 AM EDT 1.4 kt1:15 PM EDT5:00 PM EDT −1.4 kt7:09 PM EDT10:31 PM EDT 1.3 kt6:22 AM EDT7:12 PM EDT9:14 PM EDT6:42 AM EDT
Sat 041:24 AM EDT5:26 AM EDT −1.4 kt7:42 AM EDT11:07 AM EDT 1.3 kt1:55 PM EDT5:37 PM EDT −1.2 kt7:49 PM EDT11:05 PM EDT 1.3 kt6:21 AM EDT7:13 PM EDT10:20 PM EDT7:06 AM EDT
Sun 052:02 AM EDT6:04 AM EDT −1.3 kt8:25 AM EDT11:49 AM EDT 1.2 kt2:36 PM EDT6:11 PM EDT −1.1 kt8:29 PM EDT11:04 PM EDT 1.2 kt6:19 AM EDT7:14 PM EDT11:24 PM EDT7:35 AM EDT
Mon 062:39 AM EDT6:41 AM EDT −1.2 kt9:07 AM EDT12:33 PM EDT 1.1 kt3:18 PM EDT6:38 PM EDT −0.9 kt9:11 PM EDT11:22 PM EDT 1.1 kt6:17 AM EDT7:15 PM EDT8:10 AM EDT
Tue 073:19 AM EDT7:17 AM EDT −1.1 kt9:51 AM EDT1:24 PM EDT 1.0 kt4:02 PM EDT7:04 PM EDT −0.8 kt9:55 PM EDT11:59 PM EDT 1.0 kt6:16 AM EDT7:16 PM EDT12:25 AM EDT8:52 AM EDT
Wed 084:01 AM EDT7:58 AM EDT −1.0 kt10:37 AM EDT2:19 PM EDT 0.9 kt4:50 PM EDT7:52 PM EDT −0.7 kt10:42 PM EDT6:14 AM EDT7:17 PM EDT1:20 AM EDT9:42 AM EDT
Thu 0912:43 AM EDT 0.9 kt4:49 AM EDT8:54 AM EDT −0.9 kt11:27 AM EDT3:13 PM EDT 0.9 kt5:43 PM EDT9:01 PM EDT −0.7 kt11:35 PM EDT6:12 AM EDT7:18 PM EDT2:08 AM EDT10:40 AM EDT
Fri 101:34 AM EDT 0.8 kt5:43 AM EDT9:58 AM EDT −0.8 kt12:21 PM EDT4:07 PM EDT 0.8 kt6:39 PM EDT10:19 PM EDT −0.6 ktLast Quarter6:10 AM EDT7:19 PM EDT2:47 AM EDT11:43 AM EDT
Sat 1112:31 AM EDT2:30 AM EDT 0.8 kt6:45 AM EDT11:04 AM EDT −0.8 kt1:16 PM EDT5:03 PM EDT 0.8 kt7:34 PM EDT11:28 PM EDT −0.7 kt6:09 AM EDT7:21 PM EDT3:20 AM EDT12:51 PM EDT
Sun 121:28 AM EDT3:26 AM EDT 0.8 kt
4:45 AM EDT 0.8 kt
5:09 AM EDT 0.8 kt
7:46 AM EDT12:02 PM EDT −0.9 kt2:08 PM EDT5:55 PM EDT 0.8 kt8:24 PM EDT6:07 AM EDT7:22 PM EDT3:48 AM EDT1:59 PM EDT
Mon 1312:22 AM EDT −0.8 kt2:22 AM EDT4:27 AM EDT 0.9 kt
5:13 AM EDT 0.8 kt
6:08 AM EDT 0.9 kt
8:42 AM EDT12:50 PM EDT −1.0 kt2:58 PM EDT6:37 PM EDT 0.9 kt9:10 PM EDT6:06 AM EDT7:23 PM EDT4:12 AM EDT3:09 PM EDT
Tue 141:08 AM EDT −0.9 kt3:14 AM EDT6:49 AM EDT 1.0 kt9:35 AM EDT1:33 PM EDT −1.1 kt3:45 PM EDT7:03 PM EDT 1.0 kt9:54 PM EDT6:04 AM EDT7:24 PM EDT4:34 AM EDT4:20 PM EDT
Wed 151:51 AM EDT −1.1 kt4:05 AM EDT6:57 AM EDT 1.1 kt10:24 AM EDT2:13 PM EDT −1.1 kt4:30 PM EDT6:48 PM EDT 1.1 kt10:38 PM EDT6:02 AM EDT7:25 PM EDT4:55 AM EDT5:33 PM EDT
Thu 162:33 AM EDT −1.2 kt4:55 AM EDT7:19 AM EDT 1.2 kt11:10 AM EDT2:53 PM EDT −1.2 kt5:14 PM EDT7:27 PM EDT 1.3 kt11:21 PM EDT6:01 AM EDT7:26 PM EDT5:17 AM EDT6:49 PM EDT
Fri 173:18 AM EDT −1.3 kt5:43 AM EDT8:00 AM EDT 1.3 kt11:54 AM EDT3:32 PM EDT −1.3 kt5:57 PM EDT8:11 PM EDT 1.5 ktNew Moon5:59 AM EDT7:27 PM EDT5:42 AM EDT8:09 PM EDT
Sat 1812:05 AM EDT4:01 AM EDT −1.4 kt6:31 AM EDT8:46 AM EDT 1.4 kt12:37 PM EDT4:10 PM EDT −1.3 kt6:41 PM EDT8:57 PM EDT 1.6 kt5:58 AM EDT7:28 PM EDT6:12 AM EDT9:31 PM EDT
Sun 1912:50 AM EDT4:42 AM EDT −1.5 kt7:19 AM EDT9:36 AM EDT 1.5 kt1:23 PM EDT4:49 PM EDT −1.3 kt7:27 PM EDT9:46 PM EDT 1.7 kt5:56 AM EDT7:30 PM EDT6:49 AM EDT10:52 PM EDT
Mon 201:36 AM EDT5:22 AM EDT −1.6 kt8:08 AM EDT10:25 AM EDT 1.5 kt2:12 PM EDT5:30 PM EDT −1.3 kt8:16 PM EDT10:35 PM EDT 1.7 kt5:54 AM EDT7:31 PM EDT7:37 AM EDT
Tue 212:25 AM EDT6:08 AM EDT −1.5 kt9:00 AM EDT11:15 AM EDT 1.5 kt3:04 PM EDT6:17 PM EDT −1.2 kt9:08 PM EDT11:25 PM EDT 1.6 kt5:53 AM EDT7:32 PM EDT8:37 AM EDT12:06 AM EDT
Wed 223:18 AM EDT7:07 AM EDT −1.4 kt9:53 AM EDT12:09 PM EDT 1.4 kt3:59 PM EDT7:23 PM EDT −1.1 kt10:04 PM EDT5:51 AM EDT7:33 PM EDT9:47 AM EDT1:08 AM EDT
Thu 2312:19 AM EDT 1.5 kt4:14 AM EDT8:21 AM EDT −1.4 kt10:50 AM EDT1:17 PM EDT 1.3 kt4:58 PM EDT8:46 PM EDT −1.1 kt11:03 PM EDTFirst Quarter5:50 AM EDT7:34 PM EDT11:03 AM EDT1:56 AM EDT
Fri 241:22 AM EDT 1.3 kt5:15 AM EDT9:30 AM EDT −1.3 kt11:50 AM EDT2:59 PM EDT 1.2 kt6:03 PM EDT9:58 PM EDT −1.1 kt5:48 AM EDT7:35 PM EDT12:18 PM EDT2:34 AM EDT
Sat 2512:07 AM EDT3:05 AM EDT 1.2 kt6:24 AM EDT10:36 AM EDT −1.3 kt12:51 PM EDT4:10 PM EDT 1.2 kt7:10 PM EDT11:07 PM EDT −1.1 kt5:47 AM EDT7:36 PM EDT1:31 PM EDT3:02 AM EDT
Sun 261:12 AM EDT4:36 AM EDT 1.2 kt7:34 AM EDT11:39 AM EDT −1.4 kt1:51 PM EDT5:15 PM EDT 1.2 kt8:13 PM EDT5:46 AM EDT7:37 PM EDT2:40 PM EDT3:27 AM EDT
Mon 2712:09 AM EDT −1.2 kt2:15 AM EDT5:45 AM EDT 1.2 kt8:39 AM EDT12:36 PM EDT −1.4 kt2:47 PM EDT6:13 PM EDT 1.3 kt9:10 PM EDT5:44 AM EDT7:39 PM EDT3:47 PM EDT3:48 AM EDT
Tue 281:03 AM EDT −1.3 kt3:13 AM EDT6:42 AM EDT 1.3 kt9:38 AM EDT1:27 PM EDT −1.4 kt3:40 PM EDT7:03 PM EDT 1.3 kt10:02 PM EDT5:43 AM EDT7:40 PM EDT4:53 PM EDT4:07 AM EDT
Wed 291:55 AM EDT −1.4 kt4:09 AM EDT7:32 AM EDT 1.3 kt10:32 AM EDT2:16 PM EDT −1.4 kt4:28 PM EDT7:49 PM EDT 1.3 kt10:50 PM EDT5:41 AM EDT7:41 PM EDT5:58 PM EDT4:26 AM EDT
Thu 302:44 AM EDT −1.4 kt5:01 AM EDT8:21 AM EDT 1.3 kt11:21 AM EDT3:04 PM EDT −1.3 kt5:14 PM EDT8:33 PM EDT 1.3 kt11:33 PM EDT5:40 AM EDT7:42 PM EDT7:02 PM EDT4:47 AM EDT

NOT FOR NAVIGATION

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  The author and the publisher each assume no liability for damages arising from use of these predictions.  They are not certified to be correct, and they do not incorporate the effects of tropical storms, El Niño, seismic events, subsidence, uplift, or changes in global sea level.

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