Anchorage tides today
The Anchorage station is on Knik Arm at the port, near the head of Cook Inlet, where the tide is the largest in the United States.
Shaded: night. Green bands: solunar periods (thick = major, thin = minor). Heights in feet above Mean Lower Low Water, the zero of NOAA charts.
Anchorage, AK · Tuesday, October 13
Tide falling, 12.2 ft now
Low 3:56 PM
4.3 ft · in 2 h 15 min
| Low | 4:03 AM | -0.6 ft |
| High | 9:36 AM | 29.7 ft |
| Low | 3:56 PM | 4.3 ft |
| High | 9:20 PM | 30.8 ft |
Tide coefficient 112 (average), range 31.4 ft
Sunrise 8:38 AM · sunset 6:53 PM
Waxing crescent, 10% lit · fishing day ★★★☆
Solunar: major 2:49 AM–4:49 AM, minor 1:30 PM–2:30 PM, major 3:14 PM–5:14 PM, minor 5:49 PM–6:49 PM
Anchorage tide table, next 7 days
| Day | High tides | Low tides | Coef. | Sun | Moon |
|---|---|---|---|---|---|
| 9:36 AM 29.7 ft · 9:20 PM 30.8 ft | 4:03 AM -0.6 ft · 3:56 PM 4.3 ft | 112 | 8:38 AM–6:53 PM | Waxing crescent ★★★☆ | |
| 10:15 AM 28.6 ft · 9:51 PM 29.3 ft | 4:35 AM 0.1 ft · 4:27 PM 5.6 ft | 104 | 8:40 AM–6:50 PM | Waxing crescent ★★★☆ | |
| 10:55 AM 27.4 ft · 10:18 PM 27.4 ft | 5:08 AM 0.9 ft · 4:59 PM 7.3 ft | 94 | 8:43 AM–6:47 PM | Waxing crescent ★★☆☆ | |
| 11:37 AM 26.0 ft · 10:48 PM 25.4 ft | 5:42 AM 2.0 ft · 5:33 PM 9.0 ft | 86 | 8:45 AM–6:43 PM | First quarter ★★☆☆ | |
| 12:26 PM 24.9 ft · 11:36 PM 23.4 ft | 6:20 AM 3.2 ft · 6:14 PM 10.5 ft | 77 | 8:48 AM–6:40 PM | First quarter ★★☆☆ | |
| 1:25 PM 24.2 ft | 7:06 AM 4.4 ft · 7:09 PM 11.7 ft | 71 | 8:51 AM–6:37 PM | First quarter ★★☆☆ | |
| 12:56 AM 21.8 ft · 2:37 PM 24.3 ft | 8:01 AM 5.4 ft · 9:20 PM 11.5 ft | 67 | 8:53 AM–6:34 PM | First quarter ★★☆☆ |
Plan around the tide at Anchorage
No window of 30 minutes or more below 1.0 ft over the next 7 days in daylight. Try a higher level.
A falling tide uncovers sand bars and tide pools first; plan to be back before the water rises past the level you chose. Not for navigation.
Station ANCHORAGE, Knik Arm (NOAA 9455920). Predicted astronomical tide: wind, river flow and storms can move the real water by a foot or more. 28.1 ft is the average daily range here.
Published by Radif Partners · How the tides are computed · predictions downloaded October 13, 2026
Tide times for Anchorage come from the National Ocean Service prediction for station 9455920, ANCHORAGE, Knik Arm. The tide here is semidiurnal: two highs and two lows of similar height every day, about six hours and a quarter apart, with an average daily range of 28.1 ft. Around the new and full moon the range grows to about 33.6 ft on one day in ten, and at the quarter moons it shrinks to 22.2 ft. Heights are in feet above Mean Lower Low Water, the zero of nautical charts, so a negative number is water below that zero: 195 of the 457 days from October 1, 2026 to December 31, 2027 have one, down to -4.5 ft on January 24, 2027. The highest predicted tide of that period is 32.9 ft on September 1, 2027. Clock times are Alaska Time, daylight saving time included.
Twenty-eight feet, twice a day
Cook Inlet is a long, narrowing funnel, and the tide that enters it from the Gulf of Alaska grows all the way to its head. At Anchorage the average day moves 28.1 ft from low to high, and spring tides reach 33.6 ft. In the middle hours of a big rise the water climbs several feet in an hour. The highest predicted tide this period is 32.9 ft, on September 1, 2027.
The mudflats are not a beach
At low tide, Knik Arm and Turnagain Arm drain to vast flats of glacial silt. They look firm and they are not: the silt can liquefy under a footstep and hold a leg like cement, and the rising tide arrives faster than a person can walk. People have been trapped and drowned on these flats. Stay off them, whatever the tide table says. Watch the inlet from the Coastal Trail or the shore instead.
The bore of Turnagain Arm
On the biggest tides a tidal bore, a wave of incoming water, runs up Turnagain Arm south of the city, best seen from viewpoints along the Seward Highway some time after low tide at Anchorage. Surfers ride it. The bore is strongest around the new and full moon, when the range is largest; the lowest low of this period is -4.5 ft, on January 24, 2027. Port MacKenzie across Knik Arm has its own reference station. See Homer for the lower inlet and the tide range guide for why funnels amplify the tide.
Highest and lowest tides at Anchorage, 2026 to 2027
The six highest highs and six lowest lows predicted for ANCHORAGE, Knik Arm between October 1, 2026 and December 31, 2027, one per day. The high-water dates are the king tides of this station; the low-water dates are the best days to see the flats, bars and tide pools.
| Highest highs | Time | Height |
|---|---|---|
| September 1, 2027 | 8:04 AM | 32.9 ft |
| October 1, 2027 | 8:39 PM | 32.9 ft |
| September 3, 2027 | 9:49 PM | 32.9 ft |
| January 23, 2027 | 7:41 PM | 32.9 ft |
| September 2, 2027 | 8:49 AM | 32.8 ft |
| October 27, 2026 | 8:22 PM | 32.8 ft |
| Lowest lows | Time | Height |
|---|---|---|
| January 24, 2027 | 2:52 AM | -4.5 ft |
| January 23, 2027 | 2:10 AM | -4.4 ft |
| July 6, 2027 | 4:32 PM | -4.0 ft |
| July 5, 2027 | 3:49 PM | -4.0 ft |
| August 3, 2027 | 3:30 PM | -3.9 ft |
| January 25, 2027 | 3:32 AM | -3.9 ft |
Tidal datums at station 9455920
NOAA's averages over the 1983-2001 epoch, measured from the chart zero (MLLW). Average range of the tide (MN): 26.2 ft; great diurnal range (GT): 29.2 ft.
| Datum | Meaning | Height above MLLW |
|---|---|---|
| MHHW | Mean Higher High Water | 29.2 ft |
| MHW | Mean High Water | 28.4 ft |
| MSL | Mean Sea Level | 16.5 ft |
| MLW | Mean Low Water | 2.3 ft |
| MLLW | Mean Lower Low Water (chart zero) | 0.0 ft |
Other stations nearby
- Seward tides: Seward, Resurrection Bay, average range 10.5 ft, highest predicted tide 13.7 ft on November 25, 2026
- Homer tides: Homer, Coal Point, Kachemak Bay, average range 18.2 ft, highest predicted tide 22.7 ft on September 30, 2027
- Juneau tides: Juneau, average range 16.0 ft, highest predicted tide 19.9 ft on December 24, 2026