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

TIDE TIMES for Thursday, June 4, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide (tomorrow) : in 39m at 10:59 pm (4.0 ft)
Next high tide : 4:47 am (7.6 ft)
Sunset today : 11:12 pm
Sunrise tomorrow : 5:56 am
Moon phase : Waning Gibbous (89% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Apr 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:214.911:07 AM6.05:285.06:321.68:069:14Waning Crescent1Thu
2Fri12:545.412:116.26:334.07:091.28:039:16Waning Crescent2Fri
3Sat1:205.91:016.57:182.87:390.88:009:18Waning Crescent3Sat
4Sun1:446.51:446.77:561.78:080.77:589:20Waning Crescent4Sun
5Mon2:097.12:246.98:300.68:360.77:559:22New Moon5Mon
6Tue2:347.63:037.09:05-0.39:060.97:539:24New Moon6Tue
7Wed3:028.13:416.99:40-1.09:371.27:509:26New Moon7Wed
8Thu3:328.54:216.810:17-1.510:091.77:479:28Waxing Crescent8Thu
9Fri4:048.75:046.410:57-1.610:442.37:459:30Waxing Crescent9Fri
10Sat4:408.75:516.011:41-1.311:223.07:429:32Waxing Crescent10Sat
11Sun5:218.56:465.512:31-0.87:409:34Waxing Crescent11Sun
12Mon6:108.17:545.112:073.61:29-0.27:379:36First Quarter12Mon
13Tue7:117.59:215.01:054.32:400.37:359:38First Quarter13Tue
14Wed8:286.910:465.42:254.64:010.67:329:40First Quarter14Wed
15Thu10:006.611:456.04:084.35:150.57:309:42Waxing Gibbous15Thu
16Fri11:246.65:403.16:130.37:279:44Waxing Gibbous16Fri
17Sat12:316.712:346.76:461.77:000.37:259:46Waxing Gibbous17Sat
18Sun1:107.41:326.87:390.37:420.47:229:48Waxing Gibbous18Sun
19Mon1:468.02:226.98:24-0.88:210.77:209:50Full Moon19Mon
20Tue2:218.43:086.99:06-1.68:571.27:179:52Full Moon20Tue
21Wed2:548.63:506.89:44-1.99:321.77:159:54Full Moon21Wed
22Thu3:268.74:316.510:21-1.810:052.47:129:56Waning Gibbous22Thu
23Fri3:598.55:126.210:58-1.410:393.07:109:58Waning Gibbous23Fri
24Sat4:328.25:535.811:37-0.811:143.67:0810:00Waning Gibbous24Sat
25Sun5:087.86:395.312:180.07:0510:02Waning Gibbous25Sun
26Mon5:477.27:315.01:040.77:0310:04Third Quarter26Mon
27Tue6:336.68:384.712:374.61:571.47:0110:06Third Quarter27Tue
28Wed7:306.19:554.81:375.03:011.86:5810:08Third Quarter28Wed
29Thu8:445.610:565.13:015.04:111.96:5610:10Third Quarter29Thu
30Fri10:095.311:375.64:404.45:091.96:5410:13Third Quarter30Fri
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 1:53 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 spring phase. Tonight's moon is 89% 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 Waning Gibbous (89% 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