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Alcatraz Island, 0.5 mile north of

Alcatraz Island, 0.5 mile north of Currents

Last Current - Slack

3:26 AM

Next Current - Flood

5:31 AM

ENE

0.5 kts

Following Current - Slack

7:59 AM

Today

🌊 Currents

Slack

3:26 AM

Flood

5:31 AM

ENE

0.5 kts

Slack

7:59 AM

Ebb

10:47 AM

WNW

0.9 kts

Slack

1:17 PM

Flood

5:17 PM

ENE

1.7 kts

Slack

8:10 PM

Ebb

11:12 PM

WNW

1.9 kts

Tomorrow

🌊 Currents

Slack

4:22 AM

Flood

6:59 AM

ENE

0.8 kts

Slack

9:42 AM

Ebb

11:58 AM

WNW

0.8 kts

Slack

2:14 PM

Flood

6:05 PM

ENE

1.6 kts

Slack

8:53 PM

Ebb

11:59 PM

WNW

2.1 kts

Friday - July 10, 2026

🌊 Currents

Slack

5:10 AM

Flood

8:24 AM

ENE

1.1 kts

Slack

10:57 AM

Ebb

1:01 PM

WNW

0.8 kts

Slack

3:19 PM

Flood

6:56 PM

ENE

1.6 kts

Slack

9:41 PM

Saturday - July 11, 2026

🌊 Currents

Ebb

12:48 AM

WNW

2.3 kts

Slack

5:58 AM

Flood

9:20 AM

ENE

1.5 kts

Slack

11:58 AM

Ebb

2:05 PM

WNW

0.9 kts

Slack

4:25 PM

Flood

7:53 PM

ENE

1.6 kts

Slack

10:33 PM

Sunday - July 12, 2026

🌊 Currents

Ebb

1:43 AM

WNW

2.4 kts

Slack

6:48 AM

Flood

10:07 AM

ENE

1.8 kts

Slack

12:53 PM

Ebb

3:02 PM

WNW

1.1 kts

Slack

5:26 PM

Flood

8:49 PM

ENE

1.6 kts

Slack

11:26 PM

Monday - July 13, 2026

🌊 Currents

Ebb

2:43 AM

WNW

2.4 kts

Slack

7:39 AM

Flood

10:54 AM

ENE

1.9 kts

Slack

1:44 PM

Ebb

3:53 PM

WNW

1.2 kts

Slack

6:25 PM

Flood

9:42 PM

ENE

1.7 kts

Tuesday - July 14, 2026

🌊 Currents

Slack

12:22 AM

Ebb

3:39 AM

WNW

2.5 kts

Slack

8:28 AM

Flood

11:43 AM

ENE

2.0 kts

Slack

2:32 PM

Ebb

4:41 PM

WNW

1.3 kts

Slack

7:23 PM

Flood

10:32 PM

ENE

1.6 kts

7-Day Insights

Current Extremes

Fastest Flood

Tue, Jul 14

2.0 kts at 11:43 AM

Unusually fast

Fastest Ebb

Tue, Jul 14

2.5 kts at 3:39 AM

Unusually fast

Peak Daily Currents

Fastest

Tue, Jul 14

2.5 kts max current

Unusually fast

Slowest

Fri, Jul 10

1.6 kts max current

Slower than usual