Alva Bay tide times

Revillagigedo Island, AKRevillagigedo IslandNOAA 9450382Monday, October 12 · AKDTMon Oct 12Predictions onlyChange station
MonthWeek
Print month

Month calendar

The last tide turn at Alva Bay today has passed. Tomorrow's first low is at 8:29 AM.

Estimated now
3.6 ft ↑
Rising 3.6 ft per hour
Next high
2:50 AM
In 3 h 56 min · 14.5 ft
Next low
8:29 AM
In 9 h 35 min · 2.7 ft
Tide range today
18.1 ft
Mean range 12.5 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 ft8 ft10 ft12 ft14 ft16 ft18 ftNOW 10:532:13 AMHigh · 15.2 ft7:57 AMLow · 1.7 ft2:02 PMHigh · 16.8 ft8:30 PMLow · −1.3 ft
Tide chart for Alva Bay, today. High 15.2 ft at 2:13 AM, low 1.7 ft at 7:57 AM, high 16.8 ft at 2:02 PM, low −1.3 ft at 8:30 PM.

Heights and times are estimated from Ketchikan, Tongass Narrows 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
  • High2:13 AM15.2 ft
  • Low7:57 AM1.7 ft
  • High2:02 PM16.8 ft
  • Low8:30 PM−1.3 ft
Tide times for Alva Bay
TideTimeHeight
High2:13 AM15.2 ft
Low7:57 AM1.7 ft
High2:02 PM16.8 ft
Low8:30 PM−1.3 ft
Sunrise
7:09 AM
First light 6:33
Sunset
5:54 PM
Last light 6:31
Moon
6%
Waxing crescent
Tide range
18.1 ft
Mean 12.5 ft

Best windows today

Plan the week →
  • Fishing
    Next: Tue 1:00 to 2:00 AM
    Earlier today: 6:00 to 7:00 AM

    Today's best window (6:00 to 7:00 AM) has passed.

  • Tidepools & shelling
    Next: Tue 8:00 to 9:00 AM
    Earlier today: 7:00 to 8:00 AM

    Today's best window (7:00 to 8:00 AM) has passed.

  • Surfing
    Next: Tue 10:00 AM to 12:00 PM
    Earlier today: 10:00 AM to 12:00 PM

    Today's best window (10:00 AM to 12:00 PM) has passed.

  • Shallow boat launch
    Avoid 7:00 to 10:00 PM

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

Plan the week

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

Next 7 days

October calendar →
High and low tides for the next 7 days, heights in ft
DayTide 1Tide 2Tide 3Tide 4Range, ft
TodayMon 12H2:13a15.2L7:57a1.7H2:02p16.8L8:30p−1.318.1 spring tide
TueOct 13H2:50a14.5L8:29a2.7H2:32p16.2L9:04p−0.716.9 spring tide
WedOct 14H3:28a13.7L9:01a3.7H3:03p15.4L9:40p0.315.1
ThuOct 15H4:07a12.7L9:35a4.8H3:36p14.5L10:21p1.413.0
FriOct 16H4:53a11.6L10:14a5.8H4:15p13.4L11:10p2.510.9
SatOct 17H5:52a10.7L11:06a6.7H5:07p12.35.6
SunOct 18L12:16a3.4H7:13a10.3L12:29p7.2H6:22p11.48.1

Spring tides Monday to Tuesday. Lows drop to −1.3 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 9450382.

Nearby stations

Currents

Point Sykes

  • Slack2:17 AM
  • Max ebb5:55 AM 1.3 kn
  • Slack8:38 AM
  • Max flood11:42 AM 1.1 kn
  • Slack2:20 PM
  • Max ebb6:07 PM 1.5 kn
  • Slack9:01 PM

Current predictions for Point Sykes, 2 mi away. Currents near inlets can be strong. Not for navigation.

Station details

Datum
Mean lower low water
Predictions
NOAA subordinate, from Ketchikan, Tongass Narrows
Live gauge
None
Coordinates
55.228° N, 131.133° W
Time zone
Alaska, UTC−8
Station ID
NOAA 9450382

About the tides at Alva Bay

Alva Bay has a semidiurnal tide: two highs and two lows of similar height each day, about 12 hours and 25 minutes apart. The pattern follows the reference station at Ketchikan, Tongass Narrows. Alva Bay sees a mean range of about 12.5 ft. Low tide can expose a wide area, and the return is fast. That is larger than most Alaska stations on this site. Looking a year ahead, predictions peak at 18.7 ft on December 24 and bottom out at −4.2 ft on July 5.

Tides here are worked out from the reference station at Ketchikan, Tongass Narrows, with NOAA time and height corrections. Times are good for planning, but local wind can shift them. The nearest other station is Custom House Cove, 9 mi away. For tidal currents, see Point Sykes.

Predictions are based on Ketchikan, Tongass Narrows.

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.