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

August 2025

DaySlackFlood

Slack
Ebb
SlackFlood

Slack
Ebb
SlackFlood

SlackPhaseSunriseSunsetMoonriseMoonset
Fri 012:54 AM EDT 1.0 kt5:25 AM EDT9:17 AM EDT −0.9 kt11:27 AM EDT2:51 PM EDT 0.9 kt5:36 PM EDT9:53 PM EDT −0.9 ktFirst Quarter5:36 AM EDT8:02 PM EDT1:49 PM EDT11:29 PM EDT
Sat 0212:07 AM EDT3:45 AM EDT 0.9 kt6:16 AM EDT10:04 AM EDT −0.8 kt12:15 PM EDT2:30 PM EDT 0.9 kt6:23 PM EDT10:47 PM EDT −0.9 kt5:37 AM EDT8:01 PM EDT2:54 PM EDT11:58 PM EDT
Sun 0312:59 AM EDT4:39 AM EDT 0.9 kt7:12 AM EDT11:02 AM EDT −0.7 kt1:05 PM EDT3:11 PM EDT 0.8 kt7:14 PM EDT11:44 PM EDT −0.9 kt5:38 AM EDT8:00 PM EDT3:58 PM EDT
Mon 041:51 AM EDT5:36 AM EDT 0.9 kt8:08 AM EDT12:02 PM EDT −0.7 kt1:56 PM EDT3:57 PM EDT 0.8 kt
5:14 PM EDT 0.8 kt
5:26 PM EDT 0.8 kt
8:04 PM EDT5:39 AM EDT7:59 PM EDT4:59 PM EDT12:35 AM EDT
Tue 0512:36 AM EDT −0.9 kt2:42 AM EDT6:29 AM EDT 0.9 kt9:03 AM EDT12:55 PM EDT −0.7 kt2:48 PM EDT4:50 PM EDT 0.8 kt
5:48 PM EDT 0.8 kt
6:25 PM EDT 0.8 kt
8:56 PM EDT5:40 AM EDT7:57 PM EDT5:55 PM EDT1:21 AM EDT
Wed 061:24 AM EDT −1.0 kt3:34 AM EDT7:17 AM EDT 1.0 kt9:56 AM EDT1:42 PM EDT −0.8 kt3:40 PM EDT5:50 PM EDT 0.8 kt
6:38 PM EDT 0.8 kt
7:06 PM EDT 0.8 kt
9:50 PM EDT5:41 AM EDT7:56 PM EDT6:43 PM EDT2:17 AM EDT
Thu 072:11 AM EDT −1.1 kt4:24 AM EDT8:01 AM EDT 1.0 kt10:46 AM EDT2:29 PM EDT −0.9 kt4:31 PM EDT6:44 PM EDT 0.9 kt10:45 PM EDT5:42 AM EDT7:55 PM EDT7:22 PM EDT3:22 AM EDT
Fri 082:57 AM EDT −1.1 kt5:12 AM EDT8:41 AM EDT 1.0 kt11:31 AM EDT3:14 PM EDT −1.0 kt5:20 PM EDT7:30 PM EDT 1.0 kt11:36 PM EDT5:43 AM EDT7:54 PM EDT7:54 PM EDT4:33 AM EDT
Sat 093:42 AM EDT −1.2 kt5:57 AM EDT9:11 AM EDT 1.0 kt12:11 PM EDT3:56 PM EDT −1.1 kt6:07 PM EDT8:17 PM EDT 1.2 ktFull Moon5:45 AM EDT7:53 PM EDT8:21 PM EDT5:47 AM EDT
Sun 1012:24 AM EDT4:21 AM EDT −1.3 kt6:39 AM EDT8:53 AM EDT 1.1 kt12:50 PM EDT4:33 PM EDT −1.2 kt6:52 PM EDT9:06 PM EDT 1.3 kt5:46 AM EDT7:51 PM EDT8:45 PM EDT7:01 AM EDT
Mon 111:10 AM EDT4:55 AM EDT −1.3 kt7:21 AM EDT9:34 AM EDT 1.3 kt1:29 PM EDT5:06 PM EDT −1.3 kt7:39 PM EDT9:55 PM EDT 1.4 kt5:47 AM EDT7:50 PM EDT9:06 PM EDT8:15 AM EDT
Tue 121:54 AM EDT5:25 AM EDT −1.3 kt8:04 AM EDT10:18 AM EDT 1.4 kt2:11 PM EDT5:39 PM EDT −1.4 kt8:27 PM EDT10:42 PM EDT 1.5 kt5:48 AM EDT7:48 PM EDT9:28 PM EDT9:29 AM EDT
Wed 132:38 AM EDT5:58 AM EDT −1.3 kt8:48 AM EDT11:02 AM EDT 1.5 kt2:55 PM EDT6:18 PM EDT −1.4 kt9:17 PM EDT11:30 PM EDT 1.5 kt5:49 AM EDT7:47 PM EDT9:51 PM EDT10:43 AM EDT
Thu 143:24 AM EDT6:37 AM EDT −1.3 kt9:34 AM EDT11:49 AM EDT 1.6 kt3:41 PM EDT7:07 PM EDT −1.4 kt10:08 PM EDT5:50 AM EDT7:45 PM EDT10:17 PM EDT12:00 PM EDT
Fri 1512:21 AM EDT 1.4 kt4:12 AM EDT7:26 AM EDT −1.3 kt10:23 AM EDT12:39 PM EDT 1.6 kt4:31 PM EDT8:09 PM EDT −1.3 kt11:04 PM EDT5:51 AM EDT7:44 PM EDT10:49 PM EDT1:18 PM EDT
Sat 161:18 AM EDT 1.4 kt5:05 AM EDT8:25 AM EDT −1.2 kt11:16 AM EDT1:34 PM EDT 1.5 kt5:25 PM EDT9:18 PM EDT −1.3 ktLast Quarter5:52 AM EDT7:42 PM EDT11:29 PM EDT2:36 PM EDT
Sun 1712:02 AM EDT2:23 AM EDT 1.3 kt6:05 AM EDT9:32 AM EDT −1.1 kt12:13 PM EDT2:32 PM EDT 1.4 kt6:24 PM EDT10:35 PM EDT −1.3 kt5:53 AM EDT7:41 PM EDT3:51 PM EDT
Mon 181:04 AM EDT3:39 AM EDT 1.2 kt7:10 AM EDT10:58 AM EDT −1.0 kt1:14 PM EDT3:34 PM EDT 1.3 kt7:27 PM EDT11:48 PM EDT −1.4 kt5:54 AM EDT7:39 PM EDT12:20 AM EDT4:56 PM EDT
Tue 192:05 AM EDT5:18 AM EDT 1.2 kt8:17 AM EDT12:14 PM EDT −1.1 kt2:16 PM EDT5:03 PM EDT 1.2 kt8:31 PM EDT5:55 AM EDT7:38 PM EDT1:23 AM EDT5:49 PM EDT
Wed 2012:50 AM EDT −1.4 kt3:05 AM EDT6:26 AM EDT 1.3 kt9:23 AM EDT1:15 PM EDT −1.2 kt3:17 PM EDT6:39 PM EDT 1.2 kt9:36 PM EDT5:56 AM EDT7:36 PM EDT2:33 AM EDT6:31 PM EDT
Thu 211:47 AM EDT −1.5 kt4:03 AM EDT7:23 AM EDT 1.3 kt10:27 AM EDT2:12 PM EDT −1.3 kt4:18 PM EDT7:39 PM EDT 1.3 kt10:40 PM EDT5:57 AM EDT7:35 PM EDT3:48 AM EDT7:04 PM EDT
Fri 222:41 AM EDT −1.6 kt4:59 AM EDT8:16 AM EDT 1.4 kt11:25 AM EDT3:07 PM EDT −1.3 kt5:15 PM EDT8:36 PM EDT 1.3 kt11:40 PM EDT5:58 AM EDT7:33 PM EDT5:02 AM EDT7:29 PM EDT
Sat 233:34 AM EDT −1.6 kt5:50 AM EDT9:08 AM EDT 1.4 kt12:15 PM EDT3:59 PM EDT −1.4 kt6:08 PM EDT9:32 PM EDT 1.4 ktNew Moon5:59 AM EDT7:32 PM EDT6:12 AM EDT7:51 PM EDT
Sun 2412:32 AM EDT4:23 AM EDT −1.6 kt6:37 AM EDT9:58 AM EDT 1.4 kt12:59 PM EDT4:46 PM EDT −1.4 kt6:57 PM EDT10:23 PM EDT 1.4 kt6:00 AM EDT7:30 PM EDT7:20 AM EDT8:11 PM EDT
Mon 251:19 AM EDT5:07 AM EDT −1.5 kt7:20 AM EDT10:43 AM EDT 1.4 kt1:39 PM EDT5:30 PM EDT −1.4 kt7:43 PM EDT11:10 PM EDT 1.3 kt6:01 AM EDT7:28 PM EDT8:25 AM EDT8:29 PM EDT
Tue 262:02 AM EDT5:48 AM EDT −1.4 kt8:02 AM EDT11:24 AM EDT 1.3 kt2:18 PM EDT6:11 PM EDT −1.3 kt8:28 PM EDT11:54 PM EDT 1.3 kt6:02 AM EDT7:27 PM EDT9:29 AM EDT8:47 PM EDT
Wed 272:43 AM EDT6:26 AM EDT −1.2 kt8:42 AM EDT11:59 AM EDT 1.2 kt2:55 PM EDT6:52 PM EDT −1.2 kt9:12 PM EDT6:04 AM EDT7:25 PM EDT10:32 AM EDT9:07 PM EDT
Thu 2812:39 AM EDT 1.2 kt3:23 AM EDT7:03 AM EDT −1.1 kt9:22 AM EDT12:05 PM EDT 1.1 kt3:33 PM EDT7:34 PM EDT −1.1 kt9:56 PM EDT6:05 AM EDT7:23 PM EDT11:36 AM EDT9:30 PM EDT
Fri 291:27 AM EDT 1.1 kt4:05 AM EDT7:37 AM EDT −0.9 kt10:03 AM EDT12:16 PM EDT 1.1 kt4:12 PM EDT8:17 PM EDT −1.0 kt10:41 PM EDT6:06 AM EDT7:22 PM EDT12:40 PM EDT9:57 PM EDT
Sat 302:19 AM EDT 1.0 kt4:50 AM EDT8:10 AM EDT −0.8 kt10:47 AM EDT12:54 PM EDT 1.0 kt4:54 PM EDT9:00 PM EDT −0.9 kt11:30 PM EDT6:07 AM EDT7:20 PM EDT1:44 PM EDT10:30 PM EDT
Sun 313:11 AM EDT 0.9 kt5:41 AM EDT8:50 AM EDT −0.7 kt11:35 AM EDT1:39 PM EDT 0.9 kt5:41 PM EDT9:52 PM EDT −0.9 ktFirst Quarter6:08 AM EDT7:18 PM EDT2:47 PM EDT11:12 PM EDT

NOT FOR NAVIGATION

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