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Alcatraz Island

Alcatraz Island Tides

A marine warning is in force for this area. The tide is 4.5' and falling: next low 2.8' at 6:54 PM. Tide predictions are astronomical, so the weather in that warning can raise or lower the actual level.

Last Tide - High

4.9'

2:07 PM

1 hour, 14 minutes ago

Next Tide - Low

2.8'

6:54 PM

3 hours, 32 minutes from now

☀️

Sunset

8:20 PM

4 hours, 58 minutes from now

🌕

Moonrise

9:09 PM

Full Moon · 98%

5 hours, 48 minutes from now

Today

🌊 Tides

High

12:10 AM

6.1'

Low

7:03 AM

-0.5'

High

2:07 PM

4.9'

Low

6:54 PM

2.8'

🌤️ Marine Weather

☀️ Sun

Rise

6:11 AM

Set

8:20 PM

🌕 Moon

Set

7:09 AM

99%

Rise

9:09 PM

98%

Tomorrow

🌊 Tides

High

12:49 AM

5.9'

Low

7:32 AM

-0.3'

High

2:32 PM

5.0'

Low

7:34 PM

2.5'

🌤️ Marine Weather

☀️ Sun

Rise

6:12 AM

Set

8:19 PM

🌕 Moon

Set

8:12 AM

96%

Rise

9:34 PM

94%

Saturday - August 1, 2026

🌊 Tides

High

1:29 AM

5.6'

Low

8:02 AM

-0.1'

High

2:59 PM

5.2'

Low

8:18 PM

2.3'

🌤️ Marine Weather

☀️ Sun

Rise

6:13 AM

Set

8:18 PM

🌕 Moon

Set

9:14 AM

91%

Rise

9:57 PM

87%

Sunday - August 2, 2026

🌊 Tides

High

2:13 AM

5.2'

Low

8:33 AM

0.3'

High

3:27 PM

5.4'

Low

9:08 PM

2.0'

🌤️ Marine Weather

☀️ Sun

Rise

6:14 AM

Set

8:17 PM

🌖 Moon

Set

10:18 AM

84%

Rise

10:21 PM

80%

Monday - August 3, 2026

🌊 Tides

High

3:03 AM

4.8'

Low

9:06 AM

0.9'

High

3:58 PM

5.6'

Low

10:04 PM

1.6'

🌤️ Marine Weather

☀️ Sun

Rise

6:14 AM

Set

8:16 PM

🌖 Moon

Set

11:22 AM

75%

Rise

10:46 PM

70%

Tuesday - August 4, 2026

🌊 Tides

High

4:05 AM

4.3'

Low

9:43 AM

1.5'

High

4:34 PM

5.9'

Low

11:09 PM

1.3'

🌤️ Marine Weather

☀️ Sun

Rise

6:15 AM

Set

8:15 PM

🌖 Moon

Set

12:30 PM

64%

Rise

11:14 PM

59%

Wednesday - August 5, 2026

🌊 Tides

High

5:27 AM

3.9'

Low

10:27 AM

2.2'

High

5:17 PM

6.1'

🌤️ Marine Weather

☀️ Sun

Rise

6:16 AM

Set

8:14 PM

🌖 Moon

Set

1:40 PM

53%

Rise

11:48 PM

48%

7-Day Insights

Tidal Extremes

Highest Tide

Thu, Jul 30

6.1' at 12:10 AM

Higher than usual

Lowest Tide

Thu, Jul 30

-0.5' at 7:03 AM

Lower than usual

Biggest Tidal Ranges

Largest

Thu, Jul 30

6.5' tidal range

Larger than usual

Smallest

Wed, Aug 5

3.9' tidal range

Smaller than usual