Tides Today & Tomorrow in Ninilchik, Cook Inlet, AK

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Ninilchik, Cook Inlet, AK.
Next low tide (tomorrow) : 4:39 am (3.3 ft)
Next high tide : in 3h 18m at 9:51 pm (17.3 ft)
Sunset today : 11:02 pm
Sunrise tomorrow : 5:23 am
Moon phase : First Quarter (54% illuminated)
Tide Station Location : Station #9455653
Common Questions About Tides

Ninilchik, Cook Inlet, AK Tides - Nov 1980

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:2317.010:3415.83:363.74:276.07:304:09Waning Crescent1Sat
2Sun11:1718.011:3316.84:423.55:254.37:334:07Waning Crescent2Sun
3Mon11:5819.05:343.06:092.77:364:04Waning Crescent3Mon
4Tue12:1917.912:3319.96:172.56:471.27:384:02Waning Crescent4Tue
5Wed12:5818.81:0520.66:542.27:210.07:413:59New Moon5Wed
6Thu1:3319.51:3421.17:282.17:53-0.87:433:57New Moon6Thu
7Fri2:0719.92:0221.28:012.28:24-1.37:463:54New Moon7Fri
8Sat2:3920.02:2921.18:322.68:54-1.47:483:52New Moon8Sat
9Sun3:1219.82:5620.89:023.39:25-1.17:513:49Waxing Crescent9Sun
10Mon3:4419.33:2320.29:324.29:57-0.57:543:47Waxing Crescent10Mon
11Tue4:1818.53:5319.410:045.210:310.37:563:45Waxing Crescent11Tue
12Wed4:5517.64:2618.410:406.311:101.47:593:42Waxing Crescent12Wed
13Thu5:3916.85:0817.211:257.38:013:40First Quarter13Thu
14Fri6:3516.16:0415.912:002.412:307.98:043:38First Quarter14Fri
15Sat7:5015.97:2915.01:053.41:597.88:063:36First Quarter15Sat
16Sun9:0816.59:1315.22:223.83:236.58:093:34First Quarter16Sun
17Mon10:1217.910:3516.63:363.64:314.38:113:32Waxing Gibbous17Mon
18Tue11:0519.711:3718.44:412.95:261.78:143:30Waxing Gibbous18Tue
19Wed11:5121.55:362.06:16-0.98:163:28Waxing Gibbous19Wed
20Thu12:2920.112:3423.16:261.37:01-3.18:183:26Full Moon20Thu
21Fri1:1821.51:1624.17:130.87:46-4.68:213:24Full Moon21Fri
22Sat2:0522.31:5924.67:570.78:29-5.38:233:22Full Moon22Sat
23Sun2:5122.42:4124.38:421.29:13-5.18:263:20Waning Gibbous23Sun
24Mon3:3722.03:2523.39:272.09:58-4.18:283:18Waning Gibbous24Mon
25Tue4:2421.14:0921.810:143.210:45-2.48:303:17Waning Gibbous25Tue
26Wed5:1419.84:5619.811:044.611:35-0.48:323:15Waning Gibbous26Wed
27Thu6:0818.55:5017.712:035.98:353:14Third Quarter27Thu
28Fri7:1117.46:5815.812:311.51:146.88:373:12Third Quarter28Fri
29Sat8:2116.88:2514.61:353.22:316.88:393:11Third Quarter29Sat
30Sun9:3016.99:5014.62:444.33:456.08:413:09Third Quarter30Sun
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 1:15 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 neap phase. Tonight's moon is 54% 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 minimum.

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 First Quarter (54% illuminated). This places Ninilchik, Cook Inlet, AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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