Tide station · Alaska

Composite Island tides

Times are local (America/Juneau, GMT-9). Predicted tides, not live water levels. Not for navigation.

Right now

Rising

Next high 4:03 AM, 14.0 ft (4.26 m), in 4 h 18 min.

Today · Thu, Nov 12

  • High3:22 AM14.6 ft 4.44 m
  • Low8:44 AM5.4 ft 1.63 m
  • High2:33 PM17.6 ft 5.38 m
  • Low9:33 PM-0.1 ft -0.03 m

Next 7 days

-11357911131517Thu, Nov 12Fri, Nov 13Sat, Nov 14Sun, Nov 15Mon, Nov 16Tue, Nov 17Wed, Nov 18
Feet · orange dots are highs, black dots are lows
High and low tides for the next seven days
DayTides (local time, height)
Thu, Nov 12
  • H 3:22 AM · 14.6 ft
  • L 8:44 AM · 5.4 ft
  • H 2:33 PM · 17.6 ft
  • L 9:33 PM · -0.1 ft
Fri, Nov 13
  • H 4:03 AM · 14.0 ft
  • L 9:21 AM · 5.8 ft
  • H 3:07 PM · 16.8 ft
  • L 10:13 PM · 0.6 ft
Sat, Nov 14
  • H 4:48 AM · 13.3 ft
  • L 10:02 AM · 6.2 ft
  • H 3:46 PM · 15.8 ft
  • L 10:57 PM · 1.2 ft
Sun, Nov 15
  • H 5:39 AM · 12.8 ft
  • L 10:54 AM · 6.5 ft
  • H 4:32 PM · 14.6 ft
  • L 11:46 PM · 1.9 ft
Mon, Nov 16
  • H 6:38 AM · 12.7 ft
  • L 12:04 PM · 6.6 ft
  • H 5:31 PM · 13.4 ft
Tue, Nov 17
  • L 12:41 AM · 2.4 ft
  • H 7:37 AM · 12.9 ft
  • L 1:28 PM · 6.2 ft
  • H 6:48 PM · 12.4 ft
Wed, Nov 18
  • L 1:41 AM · 2.8 ft
  • H 8:29 AM · 13.7 ft
  • L 2:45 PM · 5.2 ft
  • H 8:13 PM · 12.1 ft

About this station

Composite Island is a NOAA subordinate station in Alaska: its highs and lows are offsets from Elfin Cove, Port Althorp. Heights are feet above mean lower low water (MLLW).

Tide type: Mixed, mostly semidiurnal: two highs and two lows a day, one pair noticeably bigger than the other.

This week the biggest swing between high and low is 17.7 ft; the average swing is 10.2 ft.

Station facts

Station ID
9452682
Source
NOAA CO-OPS
Type
Subordinate station
Reference station
Elfin Cove, Port Althorp
Coordinates
58.8883, -136.5730
Datum
MLLW (mean lower low water)
Tide type
Mixed, mostly semidiurnal
Time zone
America/Juneau

Nearby tide stations

Nearby wave buoys

Tide predictions from NOAA CO-OPS (tidesandcurrents.noaa.gov).

Licence: U.S. public domain (NOAA). Predictions are astronomical tides only: wind, swell and pressure move real water. Not for navigation.