Alcatraz Island tide times

Alcatraz Is.,s.f.bay, CAAlcatraz Is.,s.f.bayNOAA 9414792Tuesday, November 10 · PSTTue Nov 10Predictions onlyChange station
MonthWeek
Print month

Month calendar

Today at Alcatraz Island the next low tide is at 6:18 PM (−0.5 ft) and the next high tide is at 11:18 AM (6.1 ft). Tomorrow's first low is at 5:59 AM.

Estimated now
4.5 ft ↑
Rising 0.8 ft per hour
Next high
11:18 AM
In 3 h 04 min · 6.1 ft
Next low
6:18 PM
In 10 h 04 min · −0.5 ft
Tide range today
6.6 ft
Mean range 4.0 ft
Predictions only. No live gauge at this station.

Today's tide

Estimated curve between high and low timesNightHeight above MLLW
−2 ft0 ft2 ft4 ft6 ftNOW 8:1412:53 AMHigh · 4.7 ft5:20 AMLow · 3.0 ft11:18 AMHigh · 6.1 ft6:18 PMLow · −0.5 ft
Tide chart for Alcatraz Island, today. High 4.7 ft at 12:53 AM, low 3.0 ft at 5:20 AM, high 6.1 ft at 11:18 AM, low −0.5 ft at 6:18 PM.

Heights and times are estimated from San Francisco, San Francisco Bay using NOAA offsets. Only the high and low points are official; the curve between them is drawn by us.

Today's tides

ft above MLLW
  • High12:53 AM4.7 ft
  • Low5:20 AM3.0 ft
  • High11:18 AM6.1 ft
  • Low6:18 PM−0.5 ft
Tide times for Alcatraz Island
TideTimeHeight
High12:53 AM4.7 ft
Low5:20 AM3.0 ft
High11:18 AM6.1 ft
Low6:18 PM−0.5 ft
Sunrise
6:46 AM
First light 6:18
Sunset
5:03 PM
Last light 5:31
Moon
3%
Waxing crescent
Tide range
6.6 ft
Mean 4.0 ft

Best windows today

Plan the week →
  • Fishing
    4:00 to 6:00 PM

    Moving water near sunset, as the tide falls toward the 6:18 PM low.

  • Tidepools & shelling
    4:00 to 6:00 PM

    Today's lowest water is at 6:18 PM, before sunrise or after sunset. Best daylight window is 4:00 to 6:00 PM.

  • Surfing
    Next: Wed 6:00 to 8:00 AM
    Earlier today: 6:00 to 8:00 AM

    Today's best window (6:00 to 8:00 AM) has passed.

  • Shallow boat launch
    Avoid 4:00 to 9:00 PM

    Under 1.5 ft around low water. Launch before 4:00 PM.

Plan the week

Moving water around the turn often fishes best. Local species and bait matter more than any chart.

Next 7 days

November calendar →
High and low tides for the next 7 days, heights in ft
DayTide 1Tide 2Tide 3Tide 4Range, ft
TodayTue 10H12:53a4.7L5:20a3.0H11:18a6.1L6:18p−0.56.6 spring tide
WedNov 11H1:41a4.6L5:59a3.3H11:49a5.9L6:55p−0.46.4 spring tide
ThuNov 12H2:29a4.6L6:39a3.5H12:24p5.7L7:35p−0.36.0
FriNov 13H3:18a4.5L7:24a3.6H1:03p5.5L8:18p−0.15.6
SatNov 14H4:10a4.4L8:19a3.6H1:48p5.2L9:06p0.15.1
SunNov 15H5:01a4.4L9:32a3.6H2:41p4.9L9:57p0.34.6
MonNov 16H5:47a4.5L10:56a3.4H3:45p4.5L10:50p0.54.0

Spring tides Tuesday to Wednesday. Lows drop to −0.5 ft, the best shelling days this week. Spring and neap tides

Tide predictions and observations: NOAA National Ocean Service, Center for Operational Oceanographic Products and Services (CO-OPS), station 9414792.

Nearby stations

Currents

Alcatraz Island, 0.5 mile north of

  • Current predictions are delayed. Try again soon.

Current predictions for Alcatraz Island, 0.5 mile north of, 0.6 mi away. Currents near inlets can be strong. Not for navigation.

Station details

Datum
Mean lower low water
Predictions
NOAA subordinate, from San Francisco, San Francisco Bay
Live gauge
None
Coordinates
37.827° N, 122.417° W
Time zone
Pacific, UTC−8
Station ID
NOAA 9414792

About the tides at Alcatraz Island

Alcatraz Island has a mixed tide. The two daily highs, and especially the two lows, can differ a lot in height. The pattern follows the reference station at San Francisco, San Francisco Bay. The average range is about 4.0 ft. Spring tides add a little more at both ends. In the next 12 months the highest predicted tide here is 7.2 ft on December 24, and the lowest is −1.8 ft on December 24.

Alcatraz Island is a subordinate station. NOAA predicts its tides by adjusting San Francisco, San Francisco Bay: highs come about 14 min and lows about 18 min later than there. The nearest other station is San Francisco, 1 mi away. For tidal currents, see Alcatraz Island, 0.5 mile north of.

Predictions are based on San Francisco, San Francisco Bay.

Height unitsftmAdd this tide widget to your site. It's free.Week plannerPrintable November calendar

Tide predictions and water levels from NOAA CO-OPS. For planning only, not for navigation. Real water levels can differ because of wind, air pressure and river flow. Always check conditions on site.