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

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide (tomorrow) : 4:29 am (1.3 ft)
Next high tide : in 2h 40m at 9:15 pm (7.4 ft)
Sunset today : 11:19 pm
Sunrise tomorrow : 6:03 am
Moon phase : Third Quarter (39% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Aug 1997

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:218.02:436.28:30-0.68:123.06:4210:43New Moon1Fri
2Sat2:058.13:186.59:07-0.88:532.76:4410:41New Moon2Sat
3Sun2:448.23:496.69:39-0.99:302.46:4610:39New Moon3Sun
4Mon3:208.14:186.710:09-0.810:042.16:4710:36New Moon4Mon
5Tue3:547.94:476.810:37-0.610:392.06:4910:34Waxing Crescent5Tue
6Wed4:287.65:156.811:06-0.311:152.06:5110:32Waxing Crescent6Wed
7Thu5:037.15:456.811:350.211:532.16:5310:30Waxing Crescent7Thu
8Fri5:396.66:176.812:060.96:5510:28Waxing Crescent8Fri
9Sat6:196.16:526.812:352.312:401.66:5710:26First Quarter9Sat
10Sun7:055.57:346.71:222.51:182.46:5910:23First Quarter10Sun
11Mon8:045.08:256.72:192.62:043.27:0110:21First Quarter11Mon
12Tue9:244.79:286.93:302.53:043.87:0310:19First Quarter12Tue
13Wed10:584.710:367.24:502.14:184.17:0510:17Waxing Gibbous13Wed
14Thu12:145.26:001.25:313.97:0710:14Waxing Gibbous14Thu
15Fri1:115.76:570.26:363.37:0910:12Waxing Gibbous15Fri
16Sat12:398.21:576.47:46-0.87:342.47:1110:10Waxing Gibbous16Sat
17Sun1:338.72:397.08:31-1.68:261.57:1310:07Full Moon17Sun
18Mon2:249.13:207.69:13-2.19:150.67:1410:05Full Moon18Mon
19Tue3:129.24:008.09:53-2.210:030.07:1610:02Full Moon19Tue
20Wed4:009.04:408.310:34-2.010:52-0.37:1810:00Waning Gibbous20Wed
21Thu4:498.55:228.411:15-1.311:42-0.37:209:58Waning Gibbous21Thu
22Fri5:397.86:068.311:57-0.37:229:55Waning Gibbous22Fri
23Sat6:336.96:538.112:350.112:410.87:249:53Third Quarter23Sat
24Sun7:336.17:467.71:340.61:312.17:269:50Third Quarter24Sun
25Mon8:485.48:497.32:441.22:293.27:289:48Third Quarter25Mon
26Tue10:245.210:027.14:091.53:454.07:309:45Third Quarter26Tue
27Wed11:525.311:167.15:321.45:124.27:329:43Waning Crescent27Wed
28Thu12:555.76:371.06:243.97:349:40Waning Crescent28Thu
29Fri12:187.31:416.17:270.67:193.37:369:38Waning Crescent29Fri
30Sat1:097.52:176.48:080.38:022.87:389:35Waning Crescent30Sat
31Sun1:527.72:476.78:420.08:392.27:409:32New Moon31Sun
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 12:52 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 39% 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 Third Quarter (39% 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