Tides Today & Tomorrow in Chiachi Island (East Side), AK

TIDE TIMES for Sunday, August 2, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 11:54 pm (1.5 ft)
Next high tide : in 1h 53m at 5:44 pm (7.1 ft)
Sunset today : 10:41 pm
Sunrise tomorrow : 6:44 am
Moon phase : Waning Gibbous (83% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Apr 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:187.57:374.812:530.96:077:13Third Quarter1Sat
2Sun6:276.89:255.012:155.02:291.36:047:15Third Quarter2Sun
3Mon8:026.410:315.42:075.43:511.26:027:17Waning Crescent3Mon
4Tue9:316.411:145.93:544.84:480.95:597:19Waning Crescent4Tue
5Wed10:356.611:456.34:573.85:310.65:567:21Waning Crescent5Wed
6Thu11:246.85:422.76:050.45:547:23Waning Crescent6Thu
7Fri12:116.712:056.96:191.86:330.45:517:25New Moon7Fri
8Sat12:347.012:416.96:510.96:580.55:497:27New Moon8Sat
9Sun12:567.31:156.97:210.27:220.85:467:29New Moon9Sun
10Mon1:187.61:486.77:50-0.37:471.35:437:31New Moon10Mon
11Tue1:417.82:216.58:20-0.58:131.85:417:33New Moon11Tue
12Wed2:067.92:556.28:51-0.58:402.55:387:35Waxing Crescent12Wed
13Thu2:337.93:315.89:26-0.39:083.15:367:37Waxing Crescent13Thu
14Fri3:027.84:135.410:050.09:383.85:337:39Waxing Crescent14Fri
15Sat3:377.65:054.910:510.510:154.45:317:41Waxing Crescent15Sat
16Sun4:207.26:164.611:481.011:095.05:287:43First Quarter16Sun
17Mon5:186.87:564.61:001.25:267:45First Quarter17Mon
18Tue6:386.59:165.012:355.32:211.05:237:47First Quarter18Tue
19Wed8:106.510:045.72:204.83:310.55:217:49Waxing Gibbous19Wed
20Thu9:316.710:446.53:463.54:250.05:187:51Waxing Gibbous20Thu
21Fri10:387.011:207.44:491.95:11-0.35:167:53Waxing Gibbous21Fri
22Sat11:367.311:578.25:420.25:53-0.35:147:55Waxing Gibbous22Sat
23Sun12:297.56:30-1.36:34-0.15:117:57Full Moon23Sun
24Mon12:338.91:197.47:16-2.47:130.45:097:59Full Moon24Mon
25Tue1:119.32:097.28:01-3.07:531.15:068:01Full Moon25Tue
26Wed1:509.42:586.88:47-3.08:341.95:048:03Waning Gibbous26Wed
27Thu2:309.23:506.49:34-2.49:162.85:028:06Waning Gibbous27Thu
28Fri3:138.74:475.810:24-1.510:023.74:598:08Waning Gibbous28Fri
29Sat4:008.05:525.411:19-0.510:574.54:578:10Third Quarter29Sat
30Sun4:547.27:135.212:240.54:558:12Third Quarter30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9459085)

Common Questions About Chiachi Island (East Side), AK Tides

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What time does the tide turn (slack tide) in Chiachi Island (East Side), AK today?

Slack tide in Chiachi Island (East Side), AK is approximately 8:49 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 Chiachi Island (East Side), AK?

Chiachi Island (East Side), AK is currently in a spring phase. Tonight's moon is 83% 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 Chiachi Island (East Side), 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 Chiachi Island (East Side), AK?

Tide predictions for Chiachi Island (East Side), 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 Chiachi Island (East Side), AK?

Tide data for Chiachi Island (East Side), AK is sourced from NOAA Station #9459085. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9459085.

What is the moon phase in Chiachi Island (East Side), AK tonight?

Tonight the moon over Chiachi Island (East Side), AK is Waning Gibbous (83% illuminated). This places Chiachi Island (East Side), 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