Alaska Tide Charts Feet

Know the water. Fish the tide.

Affleck Canal entrance, Kuiu Island tide predictions

56.0369, -134.1150 · NOAA station 9450913

Full daylight calendar for the Petersburg area → Alaska Daylight · Northern lights forecast for Petersburg → Alaska Aurora Forecast

Nearest buoy: Cape Edgecumbe · 84 mi NW — live wind & wave reports

Tide now

Loading live tide data…

48-hour outlook

Drag across the curve to inspect any time. Weather icons show the forecast at each high tide.

7-day tides

Loading…

H = high tide · L = low tide

About this station

NOAA builds the predictions for Affleck Canal entrance, Kuiu Island from the Sitka station: high tides about 1.09× the height, 9 min earlier; low tides about 0.95× the height, 6 min earlier.

Inside Passage waters are sheltered, but the ranges are real: 15 to 20 ft swings are routine, and narrow channels run strong tidal currents on the change. Out here, rain and channel weather matter more than ice.

Diurnal range10.7 ft
Mean range8.6 ft
RegionSoutheast Alaska
NOAA chart17386
Station since2005

2027 tide extremes

Highest predicted high tide: 13.4 ft — Fri Jan 22 · 11:59 AM

Lowest predicted low tide: -3.0 ft — Mon Jul 5 · 8:31 AM

Biggest single-day swing: 15.8 ft on Fri Jan 22

Best daytime minus tides of 2027

DateLow tideHeight
Mon Jul 58:31 AM-3.0 ft
Sun Jul 47:45 AM-2.9 ft
Sun Jun 68:44 AM-2.8 ft
Tue Jul 69:15 AM-2.8 ft
Sat Jun 57:58 AM-2.7 ft
Mon Jun 79:32 AM-2.7 ft
Tue Aug 38:10 AM-2.6 ft
Mon Aug 27:27 AM-2.6 ft
Fri Jan 226:51 PM-2.4 ft
Fri Jun 47:12 AM-2.2 ft

180 minus tides (below 0 ft) are predicted here in 2027. The table shows up to the 10 lowest that fall between 7 AM and 7 PM — the ones worth planning a clam dig or tidepool walk around.

Nearest tide stations