Tides Today & Tomorrow in Ninilchik, Cook Inlet, AK

TIDE TIMES for Friday, July 31, 2026
The tide is currently falling in Ninilchik, Cook Inlet, AK.
Next low tide : in 5h 41m at 11:50 pm (2.6 ft)
Next high tide (tomorrow) : 5:41 am (19.3 ft)
Sunset today : 10:39 pm
Sunrise tomorrow : 5:46 am
Moon phase : Waning Gibbous (95% illuminated)
Tide Station Location : Station #9455653
Common Questions About Tides

Ninilchik, Cook Inlet, AK Tides - Oct 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:0718.512:5019.76:29-0.16:511.96:115:41Waning Crescent1Sun
2Mon12:5220.41:2221.57:08-1.47:29-0.66:145:38New Moon2Mon
3Tue1:3421.91:5523.07:45-2.08:08-2.76:165:35New Moon3Tue
4Wed2:1622.82:2823.98:22-1.98:47-4.06:195:32New Moon4Wed
5Thu2:5922.93:0424.29:00-1.19:28-4.46:215:29Waxing Crescent5Thu
6Fri3:4322.13:4123.79:380.410:11-3.86:235:26Waxing Crescent6Fri
7Sat4:2920.74:2022.510:192.310:58-2.46:265:23Waxing Crescent7Sat
8Sun5:2018.85:0420.711:044.511:53-0.46:285:20First Quarter8Sun
9Mon6:2216.75:5718.412:016.76:315:17First Quarter9Mon
10Tue7:4815.27:1716.31:031.71:268.46:335:14First Quarter10Tue
11Wed9:3215.19:1115.52:303.03:128.56:355:11First Quarter11Wed
12Thu10:5216.210:4216.23:573.14:417.26:385:08Waxing Gibbous12Thu
13Fri11:4517.711:4417.45:062.45:425.26:405:05Waxing Gibbous13Fri
14Sat12:2419.05:581.56:273.26:435:02Waxing Gibbous14Sat
15Sun12:3018.512:5720.06:380.97:031.56:454:59Waxing Gibbous15Sun
16Mon1:0919.41:2620.87:130.77:360.26:484:56Full Moon16Mon
17Tue1:4420.01:5321.27:440.88:06-0.76:504:53Full Moon17Tue
18Wed2:1620.22:1821.38:141.28:35-1.16:534:50Full Moon18Wed
19Thu2:4720.02:4221.18:422.09:04-1.16:554:47Full Moon19Thu
20Fri3:1819.63:0520.69:093.09:32-0.76:584:44Waning Gibbous20Fri
21Sat3:4818.83:2819.99:354.310:010.17:004:42Waning Gibbous21Sat
22Sun4:2017.73:5319.010:025.710:331.27:034:39Waning Gibbous22Sun
23Mon4:5516.44:2117.910:317.111:112.47:054:36Waning Gibbous23Mon
24Tue5:3815.14:5616.611:078.57:084:33Third Quarter24Tue
25Wed6:4414.05:4715.312:033.612:079.77:104:30Third Quarter25Wed
26Thu8:3313.87:1914.11:204.52:0810.07:134:28Third Quarter26Thu
27Fri10:0014.99:2814.52:534.53:498.67:154:25Third Quarter27Fri
28Sat10:5216.610:4816.14:073.64:536.27:184:22Waning Crescent28Sat
29Sun11:3218.611:4418.15:042.45:413.37:214:19Waning Crescent29Sun
30Mon12:0820.65:521.36:240.37:234:17Waning Crescent30Mon
31Tue12:3220.012:4422.46:340.57:05-2.37:264:14New Moon31Tue
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 2:45 am — 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 95% 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 Waning Gibbous (95% 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