Tides Today & Tomorrow in Ninilchik, Cook Inlet, AK

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently rising in Ninilchik, Cook Inlet, AK.
Next low tide (tomorrow) : 2:28 am (2.3 ft)
Next high tide : in 3h 20m at 7:53 pm (18.9 ft)
Sunset today : 10:29 pm
Sunrise tomorrow : 5:55 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9455653
Common Questions About Tides

Ninilchik, Cook Inlet, AK Tides - Dec 1959

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:4722.32:3624.48:381.49:10-5.38:413:09New Moon1Tue
2Wed3:3422.23:2223.79:251.89:56-4.68:433:08Waxing Crescent2Wed
3Thu4:2221.74:1122.310:142.510:45-3.18:453:07Waxing Crescent3Thu
4Fri5:1320.85:0320.511:093.411:37-1.28:473:06Waxing Crescent4Fri
5Sat6:0819.76:0318.412:114.48:493:05First Quarter5Sat
6Sun7:0918.87:1516.512:350.81:225.08:513:04First Quarter6Sun
7Mon8:1718.28:4115.41:402.72:384.98:523:03First Quarter7Mon
8Tue9:2618.210:0415.42:494.03:504.28:543:02First Quarter8Tue
9Wed10:2718.611:1316.03:564.74:533.08:563:01Waxing Gibbous9Wed
10Thu11:1819.24:574.95:461.78:573:01Waxing Gibbous10Thu
11Fri12:0717.012:0219.85:504.86:300.58:593:00Waxing Gibbous11Fri
12Sat12:5217.912:4020.36:354.57:09-0.59:003:00Waxing Gibbous12Sat
13Sun1:3118.61:1620.67:154.37:44-1.29:013:00Full Moon13Sun
14Mon2:0819.11:4920.87:524.18:18-1.69:022:59Full Moon14Mon
15Tue2:4219.42:2120.78:274.18:52-1.79:042:59Full Moon15Tue
16Wed3:1619.52:5220.49:024.29:24-1.49:052:59Full Moon16Wed
17Thu3:4919.33:2419.99:364.69:57-0.99:062:59Waning Gibbous17Thu
18Fri4:2219.03:5619.110:105.010:29-0.19:062:59Waning Gibbous18Fri
19Sat4:5518.54:3018.210:485.411:040.99:072:59Waning Gibbous19Sat
20Sun5:3118.15:0917.111:305.911:422.19:083:00Waning Gibbous20Sun
21Mon6:1117.75:5816.012:226.19:093:00Third Quarter21Mon
22Tue6:5917.47:0314.912:283.31:265.99:093:01Third Quarter22Tue
23Wed7:5717.58:3014.51:264.42:385.29:103:01Third Quarter23Wed
24Thu9:0318.010:0015.02:355.23:493.79:103:02Waning Crescent24Thu
25Fri10:0819.011:1316.43:485.44:521.79:103:03Waning Crescent25Fri
26Sat11:0720.44:565.05:49-0.59:103:03Waning Crescent26Sat
27Sun12:1218.112:0021.85:564.26:40-2.59:103:04Waning Crescent27Sun
28Mon1:0319.812:5023.16:503.27:28-4.29:103:05New Moon28Mon
29Tue1:5121.11:3923.97:402.28:14-5.29:103:06New Moon29Tue
30Wed2:3822.02:2724.18:281.58:59-5.49:103:08New Moon30Wed
31Thu3:2322.43:1523.69:151.39:45-4.89:103:09Waxing Crescent31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9455653)

Common Questions About Ninilchik, Cook Inlet, AK Tides

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

Slack tide in Ninilchik, Cook Inlet, AK is approximately 11:10 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 transitional phase. Tonight's moon is 64% 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 shifting between spring and neap.

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 Third Quarter (64% illuminated). This places Ninilchik, Cook Inlet, AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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