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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 2h 25m at 12:08 pm (-0.7 ft)
Next high tide : 6:29 pm (6.2 ft)
Sunset today : 11:22 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waning Gibbous (79% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Apr 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:597.42:067.78:130.68:31-0.48:049:15Full Moon1Tue
2Wed2:357.82:517.78:55-0.29:07-0.38:019:17Full Moon2Wed
3Thu3:088.13:327.69:34-0.79:410.17:599:19Full Moon3Thu
4Fri3:408.24:117.310:11-0.910:130.67:569:21Full Moon4Fri
5Sat4:108.24:487.010:46-0.810:451.37:539:23Waning Gibbous5Sat
6Sun4:418.05:266.511:22-0.511:172.07:519:25Waning Gibbous6Sun
7Mon5:137.76:066.011:590.011:512.87:489:27Waning Gibbous7Mon
8Tue5:477.36:495.512:400.77:469:29Waning Gibbous8Tue
9Wed6:256.97:425.112:293.51:271.37:439:31Third Quarter9Wed
10Thu7:126.48:524.81:144.22:231.97:409:33Third Quarter10Thu
11Fri8:126.010:214.92:154.73:362.27:389:36Third Quarter11Fri
12Sat9:325.711:295.23:394.84:532.17:359:38Third Quarter12Sat
13Sun10:535.85:104.35:541.77:339:40Waning Crescent13Sun
14Mon12:165.711:59 AM6.16:163.36:401.37:309:42Waning Crescent14Mon
15Tue12:536.312:536.57:052.27:200.87:289:44Waning Crescent15Tue
16Wed1:277.01:416.97:471.07:580.57:259:46Waning Crescent16Wed
17Thu2:007.62:267.28:28-0.18:350.47:239:48New Moon17Thu
18Fri2:348.23:097.49:08-1.19:120.47:209:50New Moon18Fri
19Sat3:108.63:537.49:49-1.89:510.67:189:52New Moon19Sat
20Sun3:478.94:387.210:31-2.210:301.07:169:54Waxing Crescent20Sun
21Mon4:279.05:266.911:16-2.211:131.67:139:56Waxing Crescent21Mon
22Tue5:108.76:186.512:04-1.87:119:58Waxing Crescent22Tue
23Wed5:588.37:186.112:012.312:58-1.17:0810:00First Quarter23Wed
24Thu6:547.78:275.812:563.01:58-0.47:0610:02First Quarter24Thu
25Fri8:007.09:465.82:043.53:080.37:0410:04First Quarter25Fri
26Sat9:216.511:006.23:313.64:250.67:0110:06First Quarter26Sat
27Sun10:486.311:586.65:063.15:340.76:5910:08Waxing Gibbous27Sun
28Mon12:036.46:182.16:300.76:5710:10Waxing Gibbous28Mon
29Tue12:457.11:046.57:141.07:180.86:5410:12Waxing Gibbous29Tue
30Wed1:257.61:566.78:010.17:590.96:5210:14Waxing Gibbous30Wed
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 3:18 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 79% 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 Gibbous (79% 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