Tide Data for - Alcatraz Island, 0.5 mi north of (depth 74 ft), San Francisco Bay, California Current
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Current Graph and Table for
Alcatraz Island, 0.5 mi north of (depth 74 ft), San Francisco Bay, California Current
(37.8351° N, 122.4201° W)
Current Graph Start Time: 2026-04-22 00:00
This chart predicts EBB and FLOW of CURRENT, not a tide height graph
This chart predicts EBB and FLOW of CURRENT, not a tide height graph
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Raw Tide Data
Alcatraz Island, 0.5 mi north of (depth 74 ft), San Francisco Bay, California Current
37.8351° N, 122.4201° W
Flood direction 69° true
Ebb direction 237° true
2026-04-22 01:23 AM PDT Moonset
2026-04-22 01:34 AM PDT 1.29 knots Max Flood
2026-04-22 04:46 AM PDT -0.00 knots Slack, Ebb Begins
2026-04-22 06:24 AM PDT Sunrise
2026-04-22 08:17 AM PDT -1.82 knots Max Ebb
2026-04-22 10:42 AM PDT Moonrise
2026-04-22 12:19 PM PDT 0.00 knots Slack, Flood Begins
2026-04-22 04:11 PM PDT 1.22 knots Max Flood
2026-04-22 07:34 PM PDT -0.00 knots Slack, Ebb Begins
2026-04-22 07:52 PM PDT Sunset
2026-04-22 09:55 PM PDT -0.63 knots Max Ebb
2026-04-22 11:55 PM PDT 0.00 knots Slack, Flood Begins
2026-04-23 02:12 AM PDT Moonset
2026-04-23 02:37 AM PDT 1.16 knots Max Flood
2026-04-23 05:46 AM PDT -0.00 knots Slack, Ebb Begins
2026-04-23 06:23 AM PDT Sunrise
2026-04-23 09:17 AM PDT -1.71 knots Max Ebb
2026-04-23 11:54 AM PDT Moonrise
2026-04-23 01:22 PM PDT 0.00 knots Slack, Flood Begins
2026-04-23 05:23 PM PDT 1.24 knots Max Flood
2026-04-23 07:33 PM PDT First Quarter
2026-04-23 07:53 PM PDT Sunset
2026-04-23 08:40 PM PDT -0.00 knots Slack, Ebb Begins
2026-04-23 11:12 PM PDT -0.67 knots Max Ebb
Alcatraz Island, 0.5 mi north of (depth 74 ft), San Francisco Bay, California Current
37.8351° N, 122.4201° W
Flood direction 69° true
Ebb direction 237° true
2026-04-22 01:23 AM PDT Moonset
2026-04-22 01:34 AM PDT 1.29 knots Max Flood
2026-04-22 04:46 AM PDT -0.00 knots Slack, Ebb Begins
2026-04-22 06:24 AM PDT Sunrise
2026-04-22 08:17 AM PDT -1.82 knots Max Ebb
2026-04-22 10:42 AM PDT Moonrise
2026-04-22 12:19 PM PDT 0.00 knots Slack, Flood Begins
2026-04-22 04:11 PM PDT 1.22 knots Max Flood
2026-04-22 07:34 PM PDT -0.00 knots Slack, Ebb Begins
2026-04-22 07:52 PM PDT Sunset
2026-04-22 09:55 PM PDT -0.63 knots Max Ebb
2026-04-22 11:55 PM PDT 0.00 knots Slack, Flood Begins
2026-04-23 02:12 AM PDT Moonset
2026-04-23 02:37 AM PDT 1.16 knots Max Flood
2026-04-23 05:46 AM PDT -0.00 knots Slack, Ebb Begins
2026-04-23 06:23 AM PDT Sunrise
2026-04-23 09:17 AM PDT -1.71 knots Max Ebb
2026-04-23 11:54 AM PDT Moonrise
2026-04-23 01:22 PM PDT 0.00 knots Slack, Flood Begins
2026-04-23 05:23 PM PDT 1.24 knots Max Flood
2026-04-23 07:33 PM PDT First Quarter
2026-04-23 07:53 PM PDT Sunset
2026-04-23 08:40 PM PDT -0.00 knots Slack, Ebb Begins
2026-04-23 11:12 PM PDT -0.67 knots Max Ebb
Tide Graphs and Charts - Alcatraz Island, 0.5 mi north of (depth 74 ft), San Francisco Bay, California Current
NOT FOR NAVIGATION
The accuracy of these tide predictions is not guaranteed in any way. You should not use this program if anyone or anything could come to harm as a result of an incorrect tide prediction. NOAA and similar agencies in other countries can provide you with certified tide predictions if that is what you need.
XTide's predictions do not incorporate the effects of tropical storms, El Niņo, seismic events, subsidence, uplift, or changes in global sea level.
The accuracy of these tide predictions is not guaranteed in any way. You should not use this program if anyone or anything could come to harm as a result of an incorrect tide prediction. NOAA and similar agencies in other countries can provide you with certified tide predictions if that is what you need.
XTide's predictions do not incorporate the effects of tropical storms, El Niņo, seismic events, subsidence, uplift, or changes in global sea level.