Tides Today & Tomorrow in Ninilchik, Cook Inlet, AK

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently rising in Ninilchik, Cook Inlet, AK.
Next low tide : 9:30 pm (2.8 ft)
Next high tide : in 1h 30m at 3:44 pm (19.5 ft)
Sunset today : 10:11 pm
Sunrise tomorrow : 6:12 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9455653
Common Questions About Tides

Ninilchik, Cook Inlet, AK Tides - Mar 1949

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:3120.33:3220.09:311.09:42-0.67:045:33New Moon1Tue
2Wed3:5420.24:0119.310:000.910:080.67:015:36Waxing Crescent2Wed
3Thu4:1719.84:3018.310:291.110:332.06:585:38Waxing Crescent3Thu
4Fri4:3819.35:0117.110:591.610:573.76:555:41Waxing Crescent4Fri
5Sat5:0218.65:3515.711:322.411:245.46:525:43Waxing Crescent5Sat
6Sun5:2917.76:1914.212:133.36:495:46First Quarter6Sun
7Mon6:0516.77:3012.71:134.26:465:48First Quarter7Mon
8Tue6:5915.69:5112.412:518.72:444.56:435:51First Quarter8Tue
9Wed8:3814.911:2413.92:469.74:213.66:405:53Waxing Gibbous9Wed
10Thu10:3415.84:458.95:311.86:375:56Waxing Gibbous10Thu
11Fri12:1515.911:45 AM17.65:536.76:24-0.36:345:58Waxing Gibbous11Fri
12Sat12:5418.012:3919.76:434.17:08-2.16:316:01Waxing Gibbous12Sat
13Sun1:3020.11:2621.57:261.47:48-3.36:286:03Full Moon13Sun
14Mon2:0521.82:1122.78:07-1.08:27-3.86:256:06Full Moon14Mon
15Tue2:4023.12:5523.18:48-2.89:05-3.46:226:08Full Moon15Tue
16Wed3:1523.83:3922.79:29-3.89:43-2.26:196:11Waning Gibbous16Wed
17Thu3:5123.74:2321.510:11-3.810:22-0.36:166:13Waning Gibbous17Thu
18Fri4:2822.95:0919.610:55-2.911:022.06:136:16Waning Gibbous18Fri
19Sat5:0721.46:0117.311:44-1.211:474.56:106:18Third Quarter19Sat
20Sun5:5019.37:0715.112:420.86:076:20Third Quarter20Sun
21Mon6:4517.18:4513.712:456.91:572.66:046:23Third Quarter21Mon
22Tue8:1515.310:3414.02:148.53:283.46:016:25Third Quarter22Tue
23Wed10:0815.011:4715.34:038.64:533.05:586:28Waning Crescent23Wed
24Thu11:2715.95:277.25:551.95:556:30Waning Crescent24Thu
25Fri12:3216.812:2117.26:225.36:400.95:526:33Waning Crescent25Fri
26Sat1:0618.01:0218.37:013.57:160.15:496:35Waning Crescent26Sat
27Sun1:3619.01:3819.17:351.97:48-0.45:466:38New Moon27Sun
28Mon2:0319.82:1119.78:060.68:17-0.45:436:40New Moon28Mon
29Tue2:2820.32:4119.98:35-0.48:45-0.15:406:42New Moon29Tue
30Wed2:5120.53:1119.79:03-0.99:110.75:376:45New Moon30Wed
31Thu3:1420.43:4019.29:31-1.09:371.85:336:47Waxing Crescent31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9455653)

Common Questions About Ninilchik, Cook Inlet, AK Tides

Show All
What time does the tide turn (slack tide) in Ninilchik, Cook Inlet, AK today?

Slack tide in Ninilchik, Cook Inlet, AK is approximately 6:37 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Ninilchik, Cook Inlet, AK?

Ninilchik, Cook Inlet, AK is currently in a spring phase. Tonight's moon is 1% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Ninilchik, Cook Inlet, AK tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Ninilchik, Cook Inlet, AK?

Tide predictions for Ninilchik, Cook Inlet, AK come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Ninilchik, Cook Inlet, AK?

Tide data for Ninilchik, Cook Inlet, AK is sourced from NOAA Station #9455653. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9455653.

What is the moon phase in Ninilchik, Cook Inlet, AK tonight?

Tonight the moon over Ninilchik, Cook Inlet, AK is New Moon (1% illuminated). This places Ninilchik, Cook Inlet, AK in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA