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

October 2026

DaySlackFlood

Slack
Ebb
SlackFlood

Slack
Ebb
SlackFlood

SlackPhaseSunriseSunsetMoonriseMoonset
Thu 012:56 AM EDT5:59 AM EDT −1.2 kt9:00 AM EDT11:17 AM EDT 1.6 kt3:08 PM EDT6:34 PM EDT −1.4 kt9:45 PM EDT11:54 PM EDT 1.4 kt6:40 AM EDT6:25 PM EDT9:16 PM EDT12:40 PM EDT
Fri 023:46 AM EDT6:47 AM EDT −1.1 kt9:51 AM EDT12:07 PM EDT 1.6 kt3:59 PM EDT7:36 PM EDT −1.3 kt10:40 PM EDT6:42 AM EDT6:23 PM EDT10:20 PM EDT1:46 PM EDT
Sat 0312:48 AM EDT 1.3 kt4:40 AM EDT7:52 AM EDT −1.0 kt10:47 AM EDT1:03 PM EDT 1.4 kt4:56 PM EDT8:56 PM EDT −1.3 kt11:38 PM EDTLast Quarter6:43 AM EDT6:21 PM EDT11:33 PM EDT2:40 PM EDT
Sun 041:53 AM EDT 1.2 kt5:42 AM EDT9:16 AM EDT −1.0 kt11:50 AM EDT2:05 PM EDT 1.3 kt6:01 PM EDT10:15 PM EDT −1.3 kt6:44 AM EDT6:19 PM EDT3:23 PM EDT
Mon 0512:39 AM EDT3:12 AM EDT 1.2 kt6:49 AM EDT10:44 AM EDT −1.0 kt12:55 PM EDT3:16 PM EDT 1.2 kt7:10 PM EDT11:27 PM EDT −1.3 kt6:45 AM EDT6:18 PM EDT12:50 AM EDT3:56 PM EDT
Tue 061:41 AM EDT4:54 AM EDT 1.2 kt7:57 AM EDT11:57 AM EDT −1.2 kt2:00 PM EDT5:19 PM EDT 1.2 kt8:19 PM EDT6:46 AM EDT6:16 PM EDT2:06 AM EDT4:23 PM EDT
Wed 0712:28 AM EDT −1.4 kt2:40 AM EDT6:03 AM EDT 1.3 kt9:00 AM EDT12:56 PM EDT −1.3 kt3:02 PM EDT6:29 PM EDT 1.3 kt9:24 PM EDT6:47 AM EDT6:14 PM EDT3:20 AM EDT4:47 PM EDT
Thu 081:23 AM EDT −1.5 kt3:37 AM EDT6:58 AM EDT 1.4 kt9:59 AM EDT1:50 PM EDT −1.4 kt4:02 PM EDT7:25 PM EDT 1.4 kt10:25 PM EDT6:48 AM EDT6:13 PM EDT4:31 AM EDT5:08 PM EDT
Fri 092:15 AM EDT −1.6 kt4:31 AM EDT7:48 AM EDT 1.4 kt10:53 AM EDT2:43 PM EDT −1.5 kt4:58 PM EDT8:17 PM EDT 1.5 kt11:21 PM EDT6:49 AM EDT6:11 PM EDT5:41 AM EDT5:29 PM EDT
Sat 103:06 AM EDT −1.6 kt5:20 AM EDT8:36 AM EDT 1.5 kt11:41 AM EDT3:34 PM EDT −1.6 kt5:49 PM EDT9:09 PM EDT 1.5 ktNew Moon6:51 AM EDT6:09 PM EDT6:50 AM EDT5:51 PM EDT
Sun 1112:10 AM EDT3:55 AM EDT −1.5 kt6:06 AM EDT9:24 AM EDT 1.4 kt12:25 PM EDT4:22 PM EDT −1.6 kt6:38 PM EDT9:59 PM EDT 1.4 kt6:52 AM EDT6:08 PM EDT7:58 AM EDT6:15 PM EDT
Mon 1212:56 AM EDT4:40 AM EDT −1.4 kt6:49 AM EDT10:09 AM EDT 1.4 kt1:06 PM EDT5:07 PM EDT −1.5 kt7:24 PM EDT10:47 PM EDT 1.4 kt6:53 AM EDT6:06 PM EDT9:06 AM EDT6:42 PM EDT
Tue 131:39 AM EDT5:21 AM EDT −1.3 kt7:30 AM EDT10:48 AM EDT 1.3 kt1:45 PM EDT5:49 PM EDT −1.4 kt8:08 PM EDT11:31 PM EDT 1.3 kt6:54 AM EDT6:04 PM EDT10:13 AM EDT7:15 PM EDT
Wed 142:21 AM EDT6:00 AM EDT −1.1 kt8:12 AM EDT11:16 AM EDT 1.2 kt2:24 PM EDT6:30 PM EDT −1.3 kt8:52 PM EDT6:55 AM EDT6:03 PM EDT11:17 AM EDT7:55 PM EDT
Thu 1512:16 AM EDT 1.2 kt3:03 AM EDT6:38 AM EDT −1.0 kt8:54 AM EDT11:15 AM EDT 1.1 kt3:04 PM EDT7:13 PM EDT −1.1 kt9:36 PM EDT6:56 AM EDT6:01 PM EDT12:15 PM EDT8:42 PM EDT
Fri 161:06 AM EDT 1.0 kt3:47 AM EDT7:18 AM EDT −0.8 kt9:39 AM EDT11:46 AM EDT 1.0 kt3:46 PM EDT8:01 PM EDT −1.0 kt10:21 PM EDT6:57 AM EDT6:00 PM EDT1:06 PM EDT9:36 PM EDT
Sat 172:01 AM EDT 1.0 kt4:33 AM EDT8:11 AM EDT −0.7 kt10:26 AM EDT12:28 PM EDT 0.9 kt4:33 PM EDT8:53 PM EDT −0.9 kt11:09 PM EDT6:58 AM EDT5:58 PM EDT1:49 PM EDT10:36 PM EDT
Sun 182:55 AM EDT 0.9 kt5:24 AM EDT9:09 AM EDT −0.7 kt11:18 AM EDT1:18 PM EDT 0.8 kt5:26 PM EDT9:47 PM EDT −0.8 ktFirst Quarter7:00 AM EDT5:56 PM EDT2:24 PM EDT11:40 PM EDT
Mon 1912:01 AM EDT3:47 AM EDT 0.8 kt6:19 AM EDT10:08 AM EDT −0.7 kt12:14 PM EDT2:14 PM EDT 0.8 kt
3:28 PM EDT 0.7 kt
3:49 PM EDT 0.7 kt
6:26 PM EDT10:45 PM EDT −0.8 kt7:01 AM EDT5:55 PM EDT2:53 PM EDT
Tue 2012:56 AM EDT4:42 AM EDT 0.8 kt7:15 AM EDT11:11 AM EDT −0.7 kt1:10 PM EDT3:13 PM EDT 0.8 kt
4:00 PM EDT 0.7 kt
4:57 PM EDT 0.8 kt
7:27 PM EDT11:43 PM EDT −0.9 kt7:02 AM EDT5:53 PM EDT3:18 PM EDT12:45 AM EDT
Wed 211:48 AM EDT5:36 AM EDT 0.8 kt8:06 AM EDT12:06 PM EDT −0.8 kt2:04 PM EDT5:54 PM EDT 0.9 kt8:24 PM EDT7:03 AM EDT5:52 PM EDT3:40 PM EDT1:51 AM EDT
Thu 2212:32 AM EDT −1.0 kt2:38 AM EDT6:23 AM EDT 0.9 kt8:52 AM EDT12:53 PM EDT −0.9 kt2:56 PM EDT6:41 PM EDT 1.0 kt9:16 PM EDT7:04 AM EDT5:50 PM EDT4:01 PM EDT2:58 AM EDT
Fri 231:16 AM EDT −1.0 kt3:25 AM EDT6:59 AM EDT 0.9 kt9:36 AM EDT1:35 PM EDT −1.0 kt3:46 PM EDT7:17 PM EDT 1.1 kt10:06 PM EDT7:06 AM EDT5:49 PM EDT4:22 PM EDT4:06 AM EDT
Sat 241:56 AM EDT −1.1 kt4:10 AM EDT6:40 AM EDT 1.0 kt10:19 AM EDT2:16 PM EDT −1.1 kt4:35 PM EDT7:21 PM EDT 1.1 kt10:52 PM EDT7:07 AM EDT5:47 PM EDT4:44 PM EDT5:16 AM EDT
Sun 252:34 AM EDT −1.1 kt4:53 AM EDT7:07 AM EDT 1.2 kt11:01 AM EDT2:58 PM EDT −1.2 kt5:23 PM EDT7:42 PM EDT 1.2 kt11:35 PM EDT7:08 AM EDT5:46 PM EDT5:10 PM EDT6:30 AM EDT
Mon 263:11 AM EDT −1.2 kt5:36 AM EDT7:47 AM EDT 1.4 kt11:44 AM EDT3:40 PM EDT −1.4 kt6:09 PM EDT8:23 PM EDT 1.3 ktFull Moon7:09 AM EDT5:45 PM EDT5:41 PM EDT7:47 AM EDT
Tue 2712:18 AM EDT3:49 AM EDT −1.2 kt6:18 AM EDT8:31 AM EDT 1.5 kt12:26 PM EDT4:20 PM EDT −1.4 kt6:56 PM EDT9:09 PM EDT 1.4 kt7:11 AM EDT5:43 PM EDT6:20 PM EDT9:07 AM EDT
Wed 281:01 AM EDT4:26 AM EDT −1.2 kt7:03 AM EDT9:18 AM EDT 1.6 kt1:11 PM EDT4:59 PM EDT −1.5 kt7:44 PM EDT9:58 PM EDT 1.5 kt7:12 AM EDT5:42 PM EDT7:09 PM EDT10:25 AM EDT
Thu 291:47 AM EDT5:05 AM EDT −1.3 kt7:50 AM EDT10:08 AM EDT 1.7 kt1:59 PM EDT5:40 PM EDT −1.5 kt8:34 PM EDT10:47 PM EDT 1.5 kt7:13 AM EDT5:40 PM EDT8:11 PM EDT11:36 AM EDT
Fri 302:36 AM EDT5:48 AM EDT −1.2 kt8:40 AM EDT10:57 AM EDT 1.6 kt2:50 PM EDT6:29 PM EDT −1.4 kt9:25 PM EDT11:37 PM EDT 1.4 kt7:14 AM EDT5:39 PM EDT9:23 PM EDT12:36 PM EDT
Sat 313:29 AM EDT6:41 AM EDT −1.2 kt9:35 AM EDT11:49 AM EDT 1.5 kt3:44 PM EDT7:37 PM EDT −1.4 kt10:20 PM EDT7:16 AM EDT5:38 PM EDT10:40 PM EDT1:22 PM 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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