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

TIDE TIMES for Monday, June 29, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 2h 49m at 9:29 am (-0.8 ft)
Next high tide : 3:51 pm (5.7 ft)
Sunset today : 11:25 pm
Sunrise tomorrow : 5:54 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Aug 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:234.96:531.06:004.96:4210:42Waxing Gibbous1Sat
2Sun12:057.22:085.37:430.57:024.66:4410:40Waxing Gibbous2Sun
3Mon12:577.52:415.78:230.17:504.16:4610:38Waxing Gibbous3Mon
4Tue1:427.73:096.08:56-0.38:303.56:4810:36Full Moon4Tue
5Wed2:207.93:356.29:25-0.69:062.96:5010:34Full Moon5Wed
6Thu2:567.94:006.59:51-0.89:412.46:5110:32Full Moon6Thu
7Fri3:307.84:246.710:16-0.810:151.96:5310:30Full Moon7Fri
8Sat4:037.64:497.010:42-0.610:501.66:5510:28Waning Gibbous8Sat
9Sun4:387.25:167.211:09-0.111:281.46:5710:25Waning Gibbous9Sun
10Mon5:146.85:447.311:370.66:5910:23Waning Gibbous10Mon
11Tue5:546.26:177.412:091.412:071.47:0110:21Waning Gibbous11Tue
12Wed6:405.66:557.512:561.412:412.37:0310:19Third Quarter12Wed
13Thu7:395.07:447.51:521.61:223.37:0510:16Third Quarter13Thu
14Fri9:034.58:487.53:031.62:184.27:0710:14Third Quarter14Fri
15Sat10:574.510:067.74:301.43:404.77:0910:12Waning Crescent15Sat
16Sun12:265.05:530.65:114.67:1110:09Waning Crescent16Sun
17Mon1:225.66:58-0.46:293.87:1310:07Waning Crescent17Mon
18Tue12:338.52:066.37:50-1.37:342.77:1510:05New Moon18Tue
19Wed1:328.92:457.08:34-1.98:291.57:1710:02New Moon19Wed
20Thu2:259.13:227.69:15-2.19:190.57:1910:00New Moon20Thu
21Fri3:158.93:588.19:52-2.010:06-0.27:219:57New Moon21Fri
22Sat4:028.64:348.310:29-1.410:52-0.57:229:55Waxing Crescent22Sat
23Sun4:487.95:108.411:04-0.511:38-0.47:249:52Waxing Crescent23Sun
24Mon5:347.25:468.311:390.67:269:50Waxing Crescent24Mon
25Tue6:236.36:257.912:260.112:151.97:289:47First Quarter25Tue
26Wed7:165.57:077.51:170.812:543.17:309:45First Quarter26Wed
27Thu8:244.87:587.02:181.61:384.37:329:42First Quarter27Thu
28Fri10:134.59:076.73:422.22:395.17:349:40First Quarter28Fri
29Sat12:004.75:172.24:165.57:369:37Waxing Gibbous29Sat
30Sun12:595.16:261.85:525.17:389:35Waxing Gibbous30Sun
31Mon1:365.57:151.26:524.47:409:32Waxing Gibbous31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9459085)

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

Show All
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 12:40 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 100% 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 Full Moon (100% 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