Composite Island tide times

Composite Island, AKComposite IslandNOAA 9452682Saturday, October 10 · AKDTSat Oct 10Predictions onlyChange station
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Today at Composite Island the next low tide is at 7:56 AM (1.0 ft) and the next high tide is at 1:59 PM (18.6 ft). Tomorrow's first low is at 8:30 AM. Spring tides peak tomorrow, so expect bigger highs and lower lows.

Estimated now
16.5 ft ↓
Falling 1.0 ft per hour
Next low
7:56 AM
In 5 h 33 min · 1.0 ft
Next high
1:59 PM
In 11 h 36 min · 18.6 ft
Tide range today
19.7 ft
Spring tides Sunday
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 ft8 ft10 ft12 ft14 ft16 ft18 ft20 ftNOW 2:221:56 AMHigh · 16.7 ft7:56 AMLow · 1.0 ft1:59 PMHigh · 18.6 ft8:30 PMLow · −1.1 ft
Tide chart for Composite Island, today. High 16.7 ft at 1:56 AM, low 1.0 ft at 7:56 AM, high 18.6 ft at 1:59 PM, low −1.1 ft at 8:30 PM.

Heights and times are estimated from Elfin Cove, Port Althorp 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
  • High1:56 AM16.7 ft
  • Low7:56 AM1.0 ft
  • High1:59 PM18.6 ft
  • Low8:30 PM−1.1 ft
Tide times for Composite Island
TideTimeHeight
High1:56 AM16.7 ft
Low7:56 AM1.0 ft
High1:59 PM18.6 ft
Low8:30 PM−1.1 ft
Sunrise
7:32 AM
First light 6:52
Sunset
6:15 PM
Last light 6:56
Moon
0%
New moon
Tide range
19.7 ft
Spring tides Sun

Best windows today

Plan the week →
  • Fishing
    8:00 to 9:00 AM

    Dawn light with the incoming tide around the 1:59 PM high. Second window 6:00 to 7:00 PM.

  • Tidepools & shelling
    7:00 to 9:00 AM

    The 1.0 ft low at 7:56 AM falls in full daylight. The tide returns fast here, so start heading back by 8:55 AM.

  • Surfing
    10:00 AM to 12:00 PM

    Mid tide from 10:00 AM to 12:00 PM. No wind sensor at this station.

  • Shallow boat launch
    Avoid 7:00 to 9:00 AM

    Under 1.5 ft around low water. Launch before 7:00 AM.

Plan the week

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

Next 7 days

October calendar →
High and low tides for the next 7 days, heights in ft
DayTide 1Tide 2Tide 3Tide 4Range, ft
TodaySat 10H1:56a16.7L7:56a1.0H1:59p18.6L8:30p−1.119.7 spring tide
SunOct 11H2:37a16.5L8:30a1.7H2:29p18.8L9:06p−1.420.2 spring tide
MonOct 12H3:17a16.1L9:02a2.5H2:59p18.7L9:41p−1.219.8 spring tide
TueOct 13H3:55a15.4L9:34a3.4H3:29p18.2L10:16p−0.718.8 spring tide
WedOct 14H4:35a14.5L10:06a4.4H4:00p17.4L10:54p0.117.3
ThuOct 15H5:17a13.5L10:39a5.2H4:33p16.4L11:36p1.015.4
FriOct 16H6:07a12.5L11:17a6.0H5:11p15.39.3

Spring tides Saturday to Tuesday. 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 9452682.

Nearby stations

Currents

Hugh Miller Inlet, Glacier Bay

  • Slack2:50 AM
  • Max ebb5:51 AM 0.3 kn
  • Slack8:40 AM
  • Max flood11:57 AM 0.3 kn
  • Slack3:13 PM
  • Max ebb6:08 PM 0.3 kn
  • Slack9:14 PM

Current predictions for Hugh Miller Inlet, Glacier Bay, 12 mi away. Currents near inlets can be strong. Not for navigation.

Station details

Datum
Mean lower low water
Predictions
NOAA subordinate, from Elfin Cove, Port Althorp
Live gauge
None
Coordinates
58.888° N, 136.573° W
Time zone
Alaska, UTC−8
Station ID
NOAA 9452682

About the tides at Composite Island

Composite 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 Elfin Cove, Port Althorp. The tide range here is very large, about 13.7 ft on average. Water can come in faster than you can walk across flats. Check the time before you go out. That is larger than most Alaska stations on this site. The next spring tides peak tomorrow, with a range of 20.2 ft. Neap tides follow on Friday, when the range shrinks to 9.3 ft. In the next 12 months the highest predicted tide here is 21.6 ft on December 24, and the lowest is −3.9 ft on July 5.

Composite Island is a subordinate station. NOAA predicts its tides by adjusting Elfin Cove, Port Althorp: highs come about 45 min and lows about 51 min later than there. NOAA measured the tide here from 1959 to 2009 to set up these predictions. The nearest other station is Wachusett Inlet, 9 mi away, where high tide comes about 6 min earlier. For tidal currents, see Hugh Miller Inlet, Glacier Bay.

Predictions are based on Elfin Cove, Port Althorp.

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