Alcatraz Island, southwest of (depth 57 ft), San Francisco Bay, California Current
37.8143° N, 122.4320° W
Flood direction 88° true
Ebb direction 260° true

April 2026

DaySlackFlood

Slack
Ebb
SlackFlood

Slack
Ebb
SlackFlood

SlackPhaseSunriseSunsetMoonriseMoonset
Wed 0112:17 AM PDT3:39 AM PDT −1.5 kt6:25 AM PDT9:38 AM PDT 1.3 kt12:48 PM PDT4:06 PM PDT −1.1 kt6:29 PM PDT9:41 PM PDT 1.4 ktFull Moon6:54 AM PDT7:32 PM PDT7:33 PM PDT6:32 AM PDT
Thu 0212:40 AM PDT4:10 AM PDT −1.5 kt7:04 AM PDT10:16 AM PDT 1.3 kt1:37 PM PDT4:43 PM PDT −1.0 kt7:01 PM PDT10:04 PM PDT 1.3 kt6:53 AM PDT7:33 PM PDT8:36 PM PDT6:56 AM PDT
Fri 031:04 AM PDT4:32 AM PDT −1.5 kt7:42 AM PDT10:54 AM PDT 1.2 kt2:26 PM PDT5:19 PM PDT −0.8 kt7:34 PM PDT10:25 PM PDT 1.2 kt6:51 AM PDT7:34 PM PDT9:38 PM PDT7:21 AM PDT
Sat 041:29 AM PDT4:50 AM PDT −1.4 kt8:21 AM PDT11:33 AM PDT 1.1 kt3:17 PM PDT5:53 PM PDT −0.6 kt8:07 PM PDT10:48 PM PDT 1.1 kt6:50 AM PDT7:35 PM PDT10:41 PM PDT7:48 AM PDT
Sun 051:57 AM PDT5:14 AM PDT −1.3 kt9:01 AM PDT12:23 PM PDT 0.9 kt4:12 PM PDT6:31 PM PDT −0.4 kt8:40 PM PDT11:16 PM PDT 1.0 kt6:48 AM PDT7:36 PM PDT11:42 PM PDT8:21 AM PDT
Mon 062:29 AM PDT5:46 AM PDT −1.2 kt9:46 AM PDT1:45 PM PDT 0.7 kt5:21 PM PDT7:18 PM PDT −0.2 kt9:12 PM PDT11:51 PM PDT 0.8 kt6:47 AM PDT7:37 PM PDT8:59 AM PDT
Tue 073:05 AM PDT6:24 AM PDT −1.0 kt10:41 AM PDT3:13 PM PDT 0.7 kt6:54 PM PDT8:27 PM PDT −0.1 kt9:48 PM PDT6:45 AM PDT7:38 PM PDT12:40 AM PDT9:44 AM PDT
Wed 0812:34 AM PDT 0.6 kt3:48 AM PDT7:12 AM PDT −0.9 kt11:53 AM PDT4:36 PM PDT 0.7 kt8:52 PM PDT10:02 PM PDT −0.0 kt10:49 PM PDT6:44 AM PDT7:39 PM PDT1:34 AM PDT10:35 AM PDT
Thu 091:28 AM PDT 0.5 kt4:43 AM PDT8:08 AM PDT −0.8 kt1:14 PM PDT5:39 PM PDT 0.8 kt9:42 PM PDT11:16 PM PDT −0.1 ktLast Quarter6:42 AM PDT7:40 PM PDT2:21 AM PDT11:33 AM PDT
Fri 1012:22 AM PDT2:34 AM PDT 0.4 kt5:59 AM PDT9:16 AM PDT −0.7 kt2:17 PM PDT6:24 PM PDT 0.9 kt9:57 PM PDT6:41 AM PDT7:41 PM PDT3:02 AM PDT12:35 PM PDT
Sat 1112:07 AM PDT −0.3 kt1:44 AM PDT4:50 AM PDT 0.4 kt7:23 AM PDT11:49 AM PDT −0.7 kt2:58 PM PDT6:57 PM PDT 1.0 kt10:09 PM PDT6:39 AM PDT7:41 PM PDT3:37 AM PDT1:39 PM PDT
Sun 1212:46 AM PDT −0.5 kt2:48 AM PDT6:08 AM PDT 0.5 kt8:37 AM PDT12:19 PM PDT −0.8 kt3:31 PM PDT7:25 PM PDT 1.0 kt10:25 PM PDT6:38 AM PDT7:42 PM PDT4:07 AM PDT2:44 PM PDT
Mon 131:16 AM PDT −0.7 kt3:41 AM PDT6:58 AM PDT 0.7 kt9:40 AM PDT12:48 PM PDT −0.8 kt4:03 PM PDT7:48 PM PDT 1.1 kt10:43 PM PDT6:37 AM PDT7:43 PM PDT4:34 AM PDT3:50 PM PDT
Tue 141:38 AM PDT −0.9 kt4:26 AM PDT7:41 AM PDT 0.9 kt10:35 AM PDT1:26 PM PDT −0.9 kt4:37 PM PDT8:08 PM PDT 1.1 kt11:04 PM PDT6:35 AM PDT7:44 PM PDT5:00 AM PDT4:57 PM PDT
Wed 152:00 AM PDT −1.1 kt5:08 AM PDT8:22 AM PDT 1.1 kt11:25 AM PDT2:10 PM PDT −1.0 kt5:12 PM PDT8:26 PM PDT 1.2 kt11:29 PM PDT6:34 AM PDT7:45 PM PDT5:25 AM PDT6:07 PM PDT
Thu 162:31 AM PDT −1.4 kt5:50 AM PDT9:02 AM PDT 1.2 kt12:15 PM PDT2:57 PM PDT −1.0 kt5:49 PM PDT8:49 PM PDT 1.3 kt11:58 PM PDT6:32 AM PDT7:46 PM PDT5:51 AM PDT7:19 PM PDT
Fri 173:09 AM PDT −1.5 kt6:34 AM PDT9:42 AM PDT 1.3 kt1:07 PM PDT3:45 PM PDT −1.0 kt6:28 PM PDT9:19 PM PDT 1.4 ktNew Moon6:31 AM PDT7:47 PM PDT6:20 AM PDT8:35 PM PDT
Sat 1812:33 AM PDT3:52 AM PDT −1.6 kt7:22 AM PDT10:24 AM PDT 1.3 kt2:03 PM PDT4:34 PM PDT −0.9 kt7:07 PM PDT9:55 PM PDT 1.4 kt6:30 AM PDT7:48 PM PDT6:55 AM PDT9:53 PM PDT
Sun 191:12 AM PDT4:37 AM PDT −1.7 kt8:14 AM PDT11:14 AM PDT 1.2 kt3:06 PM PDT5:24 PM PDT −0.7 kt7:48 PM PDT10:34 PM PDT 1.4 kt6:28 AM PDT7:49 PM PDT7:37 AM PDT11:11 PM PDT
Mon 201:56 AM PDT5:25 AM PDT −1.6 kt9:12 AM PDT12:33 PM PDT 1.0 kt4:16 PM PDT6:22 PM PDT −0.5 kt8:32 PM PDT11:17 PM PDT 1.3 kt6:27 AM PDT7:50 PM PDT8:29 AM PDT
Tue 212:45 AM PDT6:21 AM PDT −1.5 kt10:16 AM PDT2:13 PM PDT 1.0 kt5:37 PM PDT7:32 PM PDT −0.4 kt9:23 PM PDT6:26 AM PDT7:51 PM PDT9:32 AM PDT12:22 AM PDT
Wed 2212:08 AM PDT 1.1 kt3:40 AM PDT7:27 AM PDT −1.4 kt11:29 AM PDT3:33 PM PDT 1.0 kt7:02 PM PDT8:54 PM PDT −0.3 kt10:30 PM PDT6:24 AM PDT7:52 PM PDT10:42 AM PDT1:23 AM PDT
Thu 231:11 AM PDT 0.8 kt4:45 AM PDT8:51 AM PDT −1.2 kt12:44 PM PDT4:42 PM PDT 1.1 kt8:11 PM PDT10:16 PM PDT −0.4 kt11:57 PM PDTFirst Quarter6:23 AM PDT7:53 PM PDT11:54 AM PDT2:12 AM PDT
Fri 242:39 AM PDT 0.7 kt6:04 AM PDT10:32 AM PDT −1.2 kt1:47 PM PDT5:36 PM PDT 1.3 kt9:00 PM PDT11:24 PM PDT −0.6 kt6:22 AM PDT7:54 PM PDT1:06 PM PDT2:52 AM PDT
Sat 251:26 AM PDT4:44 AM PDT 0.6 kt7:30 AM PDT11:42 AM PDT −1.2 kt2:37 PM PDT6:20 PM PDT 1.4 kt9:36 PM PDT6:20 AM PDT7:54 PM PDT2:14 PM PDT3:23 AM PDT
Sun 2612:18 AM PDT −0.9 kt2:45 AM PDT6:05 AM PDT 0.8 kt8:50 AM PDT12:36 PM PDT −1.2 kt3:20 PM PDT6:56 PM PDT 1.4 kt10:06 PM PDT6:19 AM PDT7:55 PM PDT3:20 PM PDT3:50 AM PDT
Mon 271:04 AM PDT −1.1 kt3:49 AM PDT7:05 AM PDT 0.9 kt10:00 AM PDT1:25 PM PDT −1.1 kt3:59 PM PDT7:29 PM PDT 1.4 kt10:33 PM PDT6:18 AM PDT7:56 PM PDT4:23 PM PDT4:14 AM PDT
Tue 281:46 AM PDT −1.3 kt4:40 AM PDT7:56 AM PDT 1.1 kt11:01 AM PDT2:12 PM PDT −1.0 kt4:37 PM PDT8:00 PM PDT 1.3 kt10:58 PM PDT6:17 AM PDT7:57 PM PDT5:25 PM PDT4:37 AM PDT
Wed 292:25 AM PDT −1.4 kt5:24 AM PDT8:42 AM PDT 1.2 kt11:54 AM PDT2:59 PM PDT −0.9 kt5:13 PM PDT8:29 PM PDT 1.3 kt11:22 PM PDT6:16 AM PDT7:58 PM PDT6:26 PM PDT5:00 AM PDT
Thu 303:00 AM PDT −1.5 kt6:04 AM PDT9:25 AM PDT 1.3 kt12:45 PM PDT3:43 PM PDT −0.8 kt5:50 PM PDT8:57 PM PDT 1.2 kt11:48 PM PDT6:14 AM PDT7:59 PM PDT7:28 PM PDT5:24 AM PDT

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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