Tides Today & Tomorrow in Ninilchik, Cook Inlet, AK

TIDE TIMES for Saturday, July 18, 2026
The tide is currently falling in Ninilchik, Cook Inlet, AK.
Next low tide : in 1h 34m at 1:09 pm (-1.8 ft)
Next high tide : 7:33 pm (20.2 ft)
Sunset today : 11:08 pm
Sunrise tomorrow : 5:17 am
Moon phase : Waxing Crescent (24% illuminated)
Tide Station Location : Station #9455653
Common Questions About Tides

Ninilchik, Cook Inlet, AK Tides - Jan 1982

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:1517.65:5816.312:216.29:093:11First Quarter1Fri
2Sat7:0317.57:0415.212:322.81:265.99:083:13First Quarter2Sat
3Sun8:0117.68:3114.71:294.02:385.09:083:14First Quarter3Sun
4Mon9:0518.110:0315.12:375.03:503.59:073:16First Quarter4Mon
5Tue10:0919.011:1716.43:495.44:551.59:063:18Waxing Gibbous5Tue
6Wed11:0820.34:585.35:52-0.79:053:19Waxing Gibbous6Wed
7Thu12:1818.012:0221.66:004.66:45-2.79:043:21Waxing Gibbous7Thu
8Fri1:1119.512:5322.86:543.87:33-4.29:033:23Full Moon8Fri
9Sat2:0020.71:4323.57:453.08:20-5.09:023:25Full Moon9Sat
10Sun2:4721.52:3123.68:332.49:05-5.19:013:27Full Moon10Sun
11Mon3:3221.73:1823.19:212.29:50-4.49:003:29Waning Gibbous11Mon
12Tue4:1721.64:0522.010:082.310:34-3.18:583:31Waning Gibbous12Tue
13Wed5:0121.04:5320.310:572.811:19-1.38:573:33Waning Gibbous13Wed
14Thu5:4620.15:4218.411:493.58:553:36Waning Gibbous14Thu
15Fri6:3319.06:3816.412:050.812:474.28:543:38Third Quarter15Fri
16Sat7:2518.07:4714.712:552.91:504.78:523:40Third Quarter16Sat
17Sun8:2317.39:1113.91:524.82:584.88:513:42Third Quarter17Sun
18Mon9:2616.910:3414.02:576.34:074.38:493:45Third Quarter18Mon
19Tue10:2817.111:4114.84:067.15:093.38:473:47Waning Crescent19Tue
20Wed11:2217.65:117.16:012.18:453:50Waning Crescent20Wed
21Thu12:3215.912:0818.36:066.76:450.88:433:52Waning Crescent21Thu
22Fri1:1517.012:4919.16:526.07:24-0.38:413:54Waning Crescent22Fri
23Sat1:5218.01:2719.87:325.28:00-1.28:393:57New Moon23Sat
24Sun2:2718.82:0220.38:094.68:34-1.98:373:59New Moon24Sun
25Mon3:0019.32:3620.68:454.09:07-2.18:354:02New Moon25Mon
26Tue3:3119.73:0920.59:193.69:39-2.08:334:05New Moon26Tue
27Wed4:0219.83:4320.29:533.410:11-1.58:314:07Waxing Crescent27Wed
28Thu4:3219.84:1919.610:283.310:44-0.68:294:10Waxing Crescent28Thu
29Fri5:0419.64:5718.611:073.311:190.78:274:12Waxing Crescent29Fri
30Sat5:3819.35:4317.411:523.411:592.28:244:15First Quarter30Sat
31Sun6:1818.96:3916.012:463.58:224:18First Quarter31Sun
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 4:21 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 24% 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 Waxing Crescent (24% 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