Usof Bay Tide Times and Tide Chart, AK

Today's tide

Estimated curve between high and low timesNightHeight above MLLW

0 ft2 ft4 ftNOW 4:064:13 AMLow · 0.4 ft12:01 PMHigh · 4.9 ft5:24 PMLow · 2.5 ft9:50 PMHigh · 3.9 ft

Heights and times are estimated from Unalaska, Dutch Harbor 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

Low4:13 AM0.4 ft
High12:01 PM4.9 ft
Low5:24 PM2.5 ft
High9:50 PM3.9 ft

Tide times for Usof Bay
Tide	Time	Height
Low	4:13 AM	0.4 ft
High	12:01 PM	4.9 ft
Low	5:24 PM	2.5 ft
High	9:50 PM	3.9 ft

Sunrise

9:44 AM

First light 9:09

Sunset

8:01 PM

Last light 8:36

Moon

71%

Waxing gibbous

Tide range

4.5 ft

Mean 4.1 ft

Best windows today

Plan the week →

Fishing
4:15 to 5:00 PM
Today's best window (10:00 to 11:00 AM) has passed. Dawn light with the incoming tide around the 12:01 PM high. Second window 8:00 to 9:00 PM.
Tidepools & shelling
No daylight low today
No daylight low today. The next good one is Friday at 6:00 PM.
Surfing
5:00 to 8:00 PM
Mid tide from 5:00 to 8:00 PM. No wind sensor at this station.
Shallow boat launch
Avoid 2:00 to 7:00 AM
Under 1.5 ft around low water. Launch before 2:00 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
Day	Tide 1	Tide 2	Tide 3	Tide 4	Range, ft
TodayTue 20	L4:13a0.4	H12:01p4.9	L5:24p2.5	H9:50p3.9	4.5
WedOct 21	L4:45a0.7	H12:13p4.7	L5:53p2.0	H11:01p3.7	3.9
ThuOct 22	L5:15a1.2	H12:15p4.5	L6:25p1.5		3.4
FriOct 23	H12:20a3.6	L5:41a1.7	H12:16p4.6	L7:02p0.8	3.7
SatOct 24	H1:53a3.6	L6:06a2.2	H12:24p4.8	L7:45p0.2	4.6
SunOct 25	H3:40a4.0	L6:34a2.8	H12:42p5.1	L8:33p−0.3	5.5
MonOct 26	H5:09a4.5	L7:17a3.4	H1:11p5.5	L9:26p−0.8	6.3

Tide predictions and observations: NOAA National Ocean Service, Center for Operational Oceanographic Products and Services (CO-OPS), station 9462582.

Nearby stations

Currents

No current prediction station nearby.

Station details

Datum: Mean lower low water
Predictions: NOAA subordinate, from Unalaska, Dutch Harbor
Live gauge: None
Coordinates: 53.515° N, 166.790° W
Time zone: Alaska, UTC−8
Station ID: NOAA 9462582

About the tides at Usof Bay

Usof Bay 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 Unalaska, Dutch Harbor. The average range is about 4.1 ft. Spring tides add a little more at both ends. That is smaller than most Alaska stations on this site. The next spring tides peak on October 30, with a range of 7.6 ft. Neap tides follow on October 29, when the range shrinks to 1.9 ft. In the next 12 months the highest predicted tide here is 7.9 ft on December 23, and the lowest is −1.8 ft on June 6.

Usof Bay is a subordinate station. NOAA predicts its tides by adjusting Unalaska, Dutch Harbor: highs come about 210 min and lows about 225 min earlier than there. The nearest other station is Raven Bay, 4 mi away, where high tide comes about 14 min later.

Predictions are based on Unalaska, Dutch Harbor.

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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.

Usof Bay tide times