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 2h 14m at 4:29 am (1.3 ft)
Next high tide : 10:22 am (4.5 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 - Feb 1997

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:487.18:544.71:213.33:012.69:296:10Third Quarter1Sat
2Sun8:547.310:324.92:274.04:221.89:276:13Waning Crescent2Sun
3Mon10:037.711:465.53:444.25:290.89:256:15Waning Crescent3Mon
4Tue11:078.24:583.96:24-0.49:236:17Waning Crescent4Tue
5Wed12:406.112:048.86:033.37:12-1.49:216:19Waning Crescent5Wed
6Thu1:256.812:589.37:002.47:56-2.29:196:21New Moon6Thu
7Fri2:077.41:489.57:521.58:38-2.69:176:23New Moon7Fri
8Sat2:478.02:369.58:410.89:18-2.69:156:26New Moon8Sat
9Sun3:288.33:239.19:290.39:59-2.19:136:28Waxing Crescent9Sun
10Mon4:088.54:118.410:180.110:39-1.39:106:30Waxing Crescent10Mon
11Tue4:508.55:017.611:080.311:20-0.29:086:32Waxing Crescent11Tue
12Wed5:348.35:556.612:030.79:066:34First Quarter12Wed
13Thu6:217.96:575.712:041.11:041.39:046:37First Quarter13Thu
14Fri7:147.58:195.112:522.42:201.89:016:39First Quarter14Fri
15Sat8:187.210:054.91:513.63:511.98:596:41First Quarter15Sat
16Sun9:327.011:315.23:114.35:091.58:576:43Waxing Gibbous16Sun
17Mon10:427.14:394.56:081.08:556:45Waxing Gibbous17Mon
18Tue12:285.611:40 AM7.45:484.26:530.58:526:47Waxing Gibbous18Tue
19Wed1:086.012:277.66:393.67:300.18:506:50Waxing Gibbous19Wed
20Thu1:416.41:077.87:203.18:01-0.28:476:52Full Moon20Thu
21Fri2:096.71:437.97:552.58:28-0.48:456:54Full Moon21Fri
22Sat2:347.02:167.98:272.08:54-0.48:436:56Full Moon22Sat
23Sun2:597.22:497.88:591.69:20-0.38:406:58Full Moon23Sun
24Mon3:257.33:217.59:311.39:470.08:387:00Waning Gibbous24Mon
25Tue3:517.43:547.210:041.210:150.58:357:02Waning Gibbous25Tue
26Wed4:197.54:296.710:401.210:451.18:337:05Waning Gibbous26Wed
27Thu4:507.45:096.211:211.411:181.98:307:07Waning Gibbous27Thu
28Fri5:257.45:565.612:071.68:287:09Third Quarter28Fri
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 7:25 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 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