Tides Today & Tomorrow in Ninilchik, Cook Inlet, AK

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently falling in Ninilchik, Cook Inlet, AK.
Next low tide : in 4h 25m at 9:15 am (-3.2 ft)
Next high tide : 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 - Apr 2100

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:3217.110:3514.22:367.03:442.17:298:51Third Quarter1Thu
2Fri10:0915.34:128.25:143.07:268:53Third Quarter2Fri
3Sat12:1714.612:0115.05:577.86:372.77:238:56Waning Crescent3Sat
4Sun1:2615.91:1916.07:176.17:391.87:208:58Waning Crescent4Sun
5Mon2:1217.32:1317.28:104.18:251.07:179:00Waning Crescent5Mon
6Tue2:4718.62:5618.28:512.29:020.57:149:03Waning Crescent6Tue
7Wed3:1819.53:3319.09:250.69:350.37:119:05New Moon7Wed
8Thu3:4620.24:0619.49:57-0.610:050.57:089:08New Moon8Thu
9Fri4:1220.54:3819.610:26-1.410:341.07:059:10New Moon9Fri
10Sat4:3620.65:0919.310:55-1.711:021.97:029:13New Moon10Sat
11Sun5:0020.35:3918.711:24-1.511:292.96:599:15Waxing Crescent11Sun
12Mon5:2419.86:0917.911:53-1.011:554.16:569:18Waxing Crescent12Mon
13Tue5:4819.16:4216.712:23-0.16:539:20Waxing Crescent13Tue
14Wed6:1418.27:1915.412:225.412:570.96:509:23Waxing Crescent14Wed
15Thu6:4517.18:0714.112:536.81:402.16:479:25First Quarter15Thu
16Fri7:2615.89:2413.21:368.02:393.26:449:28First Quarter16Fri
17Sat8:2714.511:1013.42:519.04:033.86:419:30First Quarter17Sat
18Sun10:1713.84:508.75:283.56:389:33First Quarter18Sun
19Mon12:2414.812:0714.66:177.06:362.56:359:35Waxing Gibbous19Mon
20Tue1:1216.61:1616.47:164.37:301.46:339:38Waxing Gibbous20Tue
21Wed1:5218.62:1018.38:041.48:160.46:309:40Waxing Gibbous21Wed
22Thu2:2920.52:5820.08:47-1.58:59-0.26:279:43Full Moon22Thu
23Fri3:0522.23:4421.29:29-3.89:40-0.36:249:45Full Moon23Fri
24Sat3:4323.34:2921.610:10-5.410:210.16:219:48Full Moon24Sat
25Sun4:2123.85:1421.410:53-5.911:030.96:189:50Full Moon25Sun
26Mon5:0223.46:0020.411:37-5.511:462.26:169:53Waning Gibbous26Mon
27Tue5:4422.46:5019.012:23-4.26:139:55Waning Gibbous27Tue
28Wed6:2820.77:4517.412:323.81:14-2.36:109:58Waning Gibbous28Wed
29Thu7:1918.58:5115.91:265.42:12-0.26:0710:00Third Quarter29Thu
30Fri8:2316.310:1315.12:366.83:221.76:0410:02Third Quarter30Fri
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 12:29 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