Castle Islands tide times

Duncan Canal, AKDuncan CanalNOAA 9451321Tuesday, November 10 · AKSTTue Nov 10Predictions onlyChange station
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Today at Castle Islands the next low tide is at 7:23 PM (−1.4 ft) and the next high tide is at 1:06 PM (17.4 ft). Tomorrow's first low is at 7:17 AM.

Predicted now
3.2 ft ↑
Rising 0.9 ft per hour
Next high
1:06 PM
In 5 h 52 min · 17.4 ft
Next low
7:23 PM
In 12 h 09 min · −1.4 ft
Tide range today
18.9 ft
Mean range 13.4 ft
Predictions only. No live gauge at this station.

Today's tide

PredictedNightHeight above MLLW
−2 ft0 ft2 ft4 ft6 ft8 ft10 ft12 ft14 ft16 ft18 ftNOW 7:131:19 AMHigh · 15.3 ft6:46 AMLow · 3.1 ft1:06 PMHigh · 17.4 ft7:23 PMLow · −1.4 ft
Tide chart for Castle Islands, today. High 15.3 ft at 1:19 AM, low 3.1 ft at 6:46 AM, high 17.4 ft at 1:06 PM, low −1.4 ft at 7:23 PM.

Predicted tide height at Duncan Canal for Tuesday, November 10, in feet above Mean Lower Low Water (MLLW). Shaded areas are night.

Today's tides

ft above MLLW
  • High1:19 AM15.3 ft
  • Low6:46 AM3.1 ft
  • High1:06 PM17.4 ft
  • Low7:23 PM−1.4 ft
Tide times for Castle Islands
TideTimeHeight
High1:19 AM15.3 ft
Low6:46 AM3.1 ft
High1:06 PM17.4 ft
Low7:23 PM−1.4 ft
Sunrise
7:22 AM
First light 6:40
Sunset
3:52 PM
Last light 4:34
Moon
3%
Waxing crescent
Tide range
18.9 ft
Mean 13.4 ft

Best windows today

Plan the week →
  • Fishing
    7:00 to 8:00 AM

    Dawn light with the incoming tide around the 1:06 PM high.

  • Tidepools & shelling
    7:00 to 8:00 AM

    The 3.1 ft low at 6:46 AM falls in full daylight. The tide returns fast here, so start heading back by 7:45 AM.

  • Surfing
    8:00 to 10:00 AM

    Mid tide from 8:00 to 10:00 AM. No wind sensor at this station.

  • Shallow boat launch
    Avoid 6:00 to 9:00 PM

    Under 1.5 ft around low water. Launch before 6:00 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 10H1:19a15.3L6:46a3.1H1:06p17.4L7:23p−1.418.9 spring tide
WedNov 11H1:56a14.9L7:17a3.6H1:39p16.9L7:56p−0.917.8 spring tide
ThuNov 12H2:34a14.4L7:49a4.2H2:13p16.1L8:31p−0.216.4
FriNov 13H3:15a13.6L8:25a4.9H2:49p15.2L9:10p0.614.6
SatNov 14H4:00a12.8L9:06a5.6H3:28p14.1L9:53p1.512.6
SunNov 15H4:52a12.2L9:56a6.2H4:16p12.9L10:42p2.310.6
MonNov 16H5:53a11.9L10:57a6.6H5:24p11.9L11:36p2.99.0

Spring tides Tuesday to Wednesday. Lows drop to −1.4 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 9451321.

Nearby stations

Currents

Spike Rock

  • Current predictions are delayed. Try again soon.

Current predictions for Spike Rock, 7 mi away. Currents near inlets can be strong. Not for navigation.

Station details

Datum
Mean lower low water
Predictions
NOAA, from this station's own tide records
Live gauge
None
Coordinates
56.643° N, 133.152° W
Time zone
Alaska, UTC−9
Station ID
NOAA 9451321

About the tides at Castle Islands

Expect two roughly equal high tides a day at Duncan Canal, each arriving about 50 minutes later than the day before. Castle Islands sees a mean range of about 13.4 ft. Low tide can expose a wide area, and the return is fast. That is larger than most Alaska stations on this site. From the average lower low to the average higher high, the difference is 15.8 ft. Looking a year ahead, predictions peak at 19.4 ft on December 24 and bottom out at −4.2 ft on July 5.

Predictions for Castle Islands come from this station's own tide records. There is no live sensor, so the table shows forecast only. NOAA measured the tide here from 1972 to 2024 to set up these predictions. The nearest other station is Beecher Pass, 7 mi away. For tidal currents, see Spike Rock.

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.