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

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 4h 34m at 3:47 pm (3.3 ft)
Next high tide : 10:13 pm (7.8 ft)
Sunset today : 11:18 pm
Sunrise tomorrow : 6:05 am
Moon phase : Waning Crescent (28% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jun 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:038.83:156.69:04-2.28:511.95:5811:10Full Moon1Sat
2Sun2:479.24:016.89:48-2.89:371.95:5711:11Full Moon2Sun
3Mon3:329.34:486.910:32-3.010:251.95:5611:12Waning Gibbous3Mon
4Tue4:199.15:376.911:18-2.811:152.05:5511:14Waning Gibbous4Tue
5Wed5:088.76:276.912:05-2.35:5411:15Waning Gibbous5Wed
6Thu6:018.07:206.812:112.212:55-1.65:5411:16Third Quarter6Thu
7Fri6:597.18:176.81:122.41:47-0.75:5311:17Third Quarter7Fri
8Sat8:066.39:176.92:232.52:440.35:5211:18Third Quarter8Sat
9Sun9:245.610:177.13:462.33:461.15:5211:19Third Quarter9Sun
10Mon10:505.311:137.45:081.64:491.85:5111:20Waning Crescent10Mon
11Tue12:075.36:150.85:492.35:5111:21Waning Crescent11Tue
12Wed12:047.61:125.57:110.16:432.65:5011:21Waning Crescent12Wed
13Thu12:507.92:065.87:58-0.57:312.75:5011:22Waning Crescent13Thu
14Fri1:318.12:506.08:39-0.98:152.95:5011:23New Moon14Fri
15Sat2:108.23:306.19:16-1.28:542.95:5011:23New Moon15Sat
16Sun2:478.24:066.29:50-1.39:313.05:5011:24New Moon16Sun
17Mon3:228.14:406.210:22-1.210:083.05:5011:24New Moon17Mon
18Tue3:567.95:146.210:54-1.110:453.15:5011:25Waxing Crescent18Tue
19Wed4:317.65:486.111:27-0.811:233.25:5011:25Waxing Crescent19Wed
20Thu5:087.26:236.112:01-0.45:5011:25Waxing Crescent20Thu
21Fri5:466.77:006.112:053.312:370.15:5011:25Waxing Crescent21Fri
22Sat6:296.27:406.112:523.41:150.75:5111:25First Quarter22Sat
23Sun7:205.68:266.21:463.41:571.35:5111:26First Quarter23Sun
24Mon8:215.19:176.52:503.22:461.95:5111:26First Quarter24Mon
25Tue9:384.810:116.94:032.73:432.45:5211:25First Quarter25Tue
26Wed11:014.811:057.45:141.94:442.85:5211:25Waxing Gibbous26Wed
27Thu12:155.16:160.85:452.95:5311:25Waxing Gibbous27Thu
28Fri1:185.67:11-0.46:432.85:5411:25Waxing Gibbous28Fri
29Sat12:508.52:126.18:01-1.47:392.55:5411:25Full Moon29Sat
30Sun1:419.03:016.68:48-2.38:322.15:5511:24Full Moon30Sun
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 7:00 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 transitional phase. Tonight's moon is 28% 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 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 Crescent (28% illuminated). This places Chiachi Island (East Side), 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