Helm Rock (depth 30 ft), Sumner Strait, Alaska Current
56.3754° N, 133.6679° W
Flood direction 74° true
Ebb direction 240° true

September 2026

DaySlackFlood

Slack
Ebb
SlackFlood

Slack
Ebb
SlackFlood

SlackPhaseSunriseSunsetMoonriseMoonset
Tue 011:51 AM AKDT6:31 AM AKDT −3.4 kt9:27 AM AKDT11:42 AM AKDT 2.7 kt2:00 PM AKDT7:05 PM AKDT −3.5 kt10:10 PM AKDT5:58 AM AKDT7:48 PM AKDT8:27 PM AKDT12:22 PM AKDT
Wed 0212:13 AM AKDT 2.4 kt2:28 AM AKDT7:17 AM AKDT −3.1 kt10:12 AM AKDT12:26 PM AKDT 2.4 kt2:32 PM AKDT7:56 PM AKDT −3.2 kt11:04 PM AKDT6:00 AM AKDT7:46 PM AKDT8:44 PM AKDT1:58 PM AKDT
Thu 031:02 AM AKDT 2.1 kt3:11 AM AKDT8:11 AM AKDT −2.7 kt11:07 AM AKDT1:14 PM AKDT 1.9 kt3:09 PM AKDT8:56 PM AKDT −2.9 ktLast Quarter6:02 AM AKDT7:43 PM AKDT9:13 PM AKDT3:32 PM AKDT
Fri 0412:12 AM AKDT1:57 AM AKDT 1.6 kt4:08 AM AKDT9:16 AM AKDT −2.3 kt12:20 PM AKDT2:09 PM AKDT 1.3 kt3:53 PM AKDT10:05 PM AKDT −2.8 kt6:04 AM AKDT7:41 PM AKDT10:02 PM AKDT4:52 PM AKDT
Sat 051:33 AM AKDT3:03 AM AKDT 1.2 kt5:47 AM AKDT10:26 AM AKDT −2.2 kt1:51 PM AKDT3:14 PM AKDT 0.9 kt4:51 PM AKDT11:17 PM AKDT −2.9 kt6:06 AM AKDT7:38 PM AKDT11:19 PM AKDT5:47 PM AKDT
Sun 062:53 AM AKDT4:19 AM AKDT 1.0 kt7:56 AM AKDT11:39 AM AKDT −2.2 kt3:18 PM AKDT4:27 PM AKDT 0.7 kt7:03 PM AKDT6:08 AM AKDT7:35 PM AKDT6:20 PM AKDT
Mon 0712:35 AM AKDT −3.2 kt4:00 AM AKDT5:53 AM AKDT 1.2 kt9:30 AM AKDT1:00 PM AKDT −2.6 kt4:25 PM AKDT5:42 PM AKDT 0.7 kt9:17 PM AKDT6:10 AM AKDT7:33 PM AKDT12:53 AM AKDT6:39 PM AKDT
Tue 081:49 AM AKDT −3.6 kt4:54 AM AKDT7:44 AM AKDT 1.7 kt10:32 AM AKDT2:10 PM AKDT −3.1 kt5:20 PM AKDT7:23 PM AKDT 1.1 kt
7:29 PM AKDT 1.1 kt
7:51 PM AKDT 1.1 kt
10:29 PM AKDT6:12 AM AKDT7:30 PM AKDT2:33 AM AKDT6:51 PM AKDT
Wed 092:41 AM AKDT −3.9 kt5:42 AM AKDT8:24 AM AKDT 2.1 kt11:18 AM AKDT2:56 PM AKDT −3.6 kt6:07 PM AKDT8:26 PM AKDT 1.5 kt11:22 PM AKDT6:14 AM AKDT7:27 PM AKDT4:10 AM AKDT6:59 PM AKDT
Thu 103:22 AM AKDT −4.1 kt6:26 AM AKDT8:52 AM AKDT 2.3 kt11:54 AM AKDT3:32 PM AKDT −3.9 kt6:49 PM AKDT8:54 PM AKDT 1.9 ktNew Moon6:16 AM AKDT7:25 PM AKDT5:43 AM AKDT7:05 PM AKDT
Fri 1112:04 AM AKDT3:57 AM AKDT −4.1 kt7:06 AM AKDT9:17 AM AKDT 2.5 kt12:24 PM AKDT4:06 PM AKDT −4.1 kt7:28 PM AKDT9:27 PM AKDT 2.3 kt6:18 AM AKDT7:22 PM AKDT7:12 AM AKDT7:11 PM AKDT
Sat 1212:38 AM AKDT4:30 AM AKDT −3.9 kt7:44 AM AKDT9:46 AM AKDT 2.7 kt12:51 PM AKDT4:40 PM AKDT −4.2 kt8:05 PM AKDT10:01 PM AKDT 2.5 kt6:20 AM AKDT7:19 PM AKDT8:39 AM AKDT7:17 PM AKDT
Sun 131:08 AM AKDT5:01 AM AKDT −3.8 kt8:20 AM AKDT10:19 AM AKDT 2.7 kt1:16 PM AKDT5:13 PM AKDT −4.1 kt8:41 PM AKDT10:37 PM AKDT 2.6 kt6:22 AM AKDT7:17 PM AKDT10:04 AM AKDT7:24 PM AKDT
Mon 141:36 AM AKDT5:33 AM AKDT −3.5 kt8:54 AM AKDT10:53 AM AKDT 2.6 kt1:39 PM AKDT5:48 PM AKDT −3.8 kt9:16 PM AKDT11:15 PM AKDT 2.5 kt6:24 AM AKDT7:14 PM AKDT11:30 AM AKDT7:33 PM AKDT
Tue 152:02 AM AKDT6:07 AM AKDT −3.3 kt9:29 AM AKDT11:29 AM AKDT 2.3 kt1:59 PM AKDT6:23 PM AKDT −3.5 kt9:53 PM AKDT11:53 PM AKDT 2.3 kt6:26 AM AKDT7:11 PM AKDT12:55 PM AKDT7:46 PM AKDT
Wed 162:26 AM AKDT6:41 AM AKDT −2.9 kt10:05 AM AKDT12:06 PM AKDT 1.9 kt2:16 PM AKDT7:02 PM AKDT −3.1 kt10:35 PM AKDT6:28 AM AKDT7:09 PM AKDT2:17 PM AKDT8:07 PM AKDT
Thu 1712:33 AM AKDT 1.8 kt2:50 AM AKDT7:20 AM AKDT −2.5 kt10:47 AM AKDT12:45 PM AKDT 1.4 kt2:31 PM AKDT7:47 PM AKDT −2.6 kt11:30 PM AKDT6:30 AM AKDT7:06 PM AKDT3:30 PM AKDT8:40 PM AKDT
Fri 181:16 AM AKDT 1.3 kt3:11 AM AKDT8:10 AM AKDT −2.0 kt11:43 AM AKDT1:26 PM AKDT 0.8 kt2:49 PM AKDT8:47 PM AKDT −2.2 ktFirst Quarter6:32 AM AKDT7:03 PM AKDT4:26 PM AKDT9:30 PM AKDT
Sat 1912:48 AM AKDT2:06 AM AKDT 0.6 kt3:30 AM AKDT9:14 AM AKDT −1.6 kt1:20 PM AKDT2:16 PM AKDT 0.3 kt3:05 PM AKDT9:57 PM AKDT −1.9 kt6:34 AM AKDT7:00 PM AKDT5:05 PM AKDT10:38 PM AKDT
Sun 202:35 AM AKDT3:09 AM AKDT 0.1 kt3:47 AM AKDT5:05 AM AKDT −0.3 kt
5:59 AM AKDT −0.2 kt
10:25 AM AKDT −1.4 kt
3:20 PM AKDT −0.2 kt
5:27 PM AKDT −0.7 kt
6:42 PM AKDT −0.6 kt
11:06 PM AKDT −1.9 kt
6:36 AM AKDT6:58 PM AKDT5:29 PM AKDT11:56 PM AKDT
Mon 214:24 AM AKDT −0.1 kt
5:21 AM AKDT −0.1 kt
6:20 AM AKDT7:10 AM AKDT 0.1 kt7:57 AM AKDT11:35 AM AKDT −1.4 kt
4:32 PM AKDT −0.3 kt
5:58 PM AKDT −0.5 kt
7:41 PM AKDT −0.2 kt
6:38 AM AKDT6:55 PM AKDT5:44 PM AKDT
Tue 2212:15 AM AKDT −2.0 kt5:16 AM AKDT8:00 AM AKDT 0.4 kt9:30 AM AKDT12:46 PM AKDT −1.7 kt
5:41 PM AKDT −0.1 kt
6:35 PM AKDT −0.2 kt
7:36 PM AKDT8:24 PM AKDT 0.1 kt9:07 PM AKDT6:40 AM AKDT6:52 PM AKDT5:54 PM AKDT1:19 AM AKDT
Wed 231:20 AM AKDT −2.3 kt5:29 AM AKDT8:39 AM AKDT 0.7 kt10:21 AM AKDT1:46 PM AKDT −2.2 kt5:50 PM AKDT6:47 PM AKDT 0.2 kt
7:22 PM AKDT 0.2 kt
8:56 PM AKDT 0.4 kt
10:13 PM AKDT6:42 AM AKDT6:50 PM AKDT6:02 PM AKDT2:44 AM AKDT
Thu 242:07 AM AKDT −2.7 kt5:54 AM AKDT9:04 AM AKDT 0.8 kt10:57 AM AKDT2:30 PM AKDT −2.8 kt6:14 PM AKDT7:38 PM AKDT 0.7 kt10:58 PM AKDT6:44 AM AKDT6:47 PM AKDT6:08 PM AKDT4:08 AM AKDT
Fri 252:46 AM AKDT −3.0 kt6:21 AM AKDT8:00 AM AKDT 1.2 kt11:26 AM AKDT3:09 PM AKDT −3.3 kt6:43 PM AKDT8:19 PM AKDT 1.3 kt11:34 PM AKDT6:46 AM AKDT6:44 PM AKDT6:13 PM AKDT5:32 AM AKDT
Sat 263:24 AM AKDT −3.3 kt6:50 AM AKDT8:36 AM AKDT 1.7 kt11:52 AM AKDT3:48 PM AKDT −3.6 kt7:14 PM AKDT9:00 PM AKDT 1.9 ktFull Moon6:48 AM AKDT6:42 PM AKDT6:19 PM AKDT6:58 AM AKDT
Sun 2712:07 AM AKDT4:03 AM AKDT −3.5 kt7:20 AM AKDT9:14 AM AKDT 2.2 kt12:16 PM AKDT4:29 PM AKDT −3.9 kt7:48 PM AKDT9:41 PM AKDT 2.4 kt6:50 AM AKDT6:39 PM AKDT6:26 PM AKDT8:27 AM AKDT
Mon 2812:38 AM AKDT4:43 AM AKDT −3.6 kt7:53 AM AKDT9:54 AM AKDT 2.6 kt12:40 PM AKDT5:11 PM AKDT −4.0 kt8:23 PM AKDT10:24 PM AKDT 2.7 kt6:52 AM AKDT6:36 PM AKDT6:36 PM AKDT10:01 AM AKDT
Tue 291:12 AM AKDT5:26 AM AKDT −3.6 kt8:29 AM AKDT10:36 AM AKDT 2.7 kt1:08 PM AKDT5:57 PM AKDT −3.9 kt9:04 PM AKDT11:09 PM AKDT 2.9 kt6:54 AM AKDT6:34 PM AKDT6:51 PM AKDT11:38 AM AKDT
Wed 301:48 AM AKDT6:11 AM AKDT −3.5 kt9:11 AM AKDT11:20 AM AKDT 2.7 kt1:37 PM AKDT6:45 PM AKDT −3.7 kt9:51 PM AKDT11:55 PM AKDT 2.7 kt6:56 AM AKDT6:31 PM AKDT7:16 PM AKDT1:15 PM AKDT

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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