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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 1:31 pm (-0.6 ft)
Next high tide : in 3h 20m at 6:42 am (7.1 ft)
Sunset today : 11:25 pm
Sunrise tomorrow : 5:50 am
Moon phase : First Quarter (39% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Apr 2023

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:145.412:136.36:404.57:221.08:069:14Waxing Gibbous1Sat
2Sun1:405.81:036.67:253.47:540.68:039:16Waxing Gibbous2Sun
3Mon2:036.31:456.98:012.48:210.38:009:18Waxing Gibbous3Mon
4Tue2:246.82:237.08:341.38:460.37:589:20Full Moon4Tue
5Wed2:477.22:597.19:060.49:120.47:559:22Full Moon5Wed
6Thu3:117.73:357.09:39-0.39:400.77:539:24Full Moon6Thu
7Fri3:368.04:126.910:13-0.910:091.27:509:26Full Moon7Fri
8Sat4:048.34:516.610:49-1.110:391.97:479:28Waning Gibbous8Sat
9Sun4:348.45:346.111:29-1.111:122.77:459:30Waning Gibbous9Sun
10Mon5:098.46:235.612:14-0.77:429:32Waning Gibbous10Mon
11Tue5:518.17:255.11:07-0.27:409:34Third Quarter11Tue
12Wed6:427.78:494.812:364.22:130.47:379:36Third Quarter12Wed
13Thu7:507.210:314.91:424.83:350.67:359:38Third Quarter13Thu
14Fri9:196.811:425.53:185.05:000.57:329:40Third Quarter14Fri
15Sat10:536.85:044.26:050.17:309:42Waning Crescent15Sat
16Sun12:316.212:097.06:232.86:56-0.37:279:44Waning Crescent16Sun
17Mon1:117.01:117.27:211.37:40-0.47:259:46Waning Crescent17Mon
18Tue1:477.72:057.38:11-0.28:19-0.27:229:48New Moon18Tue
19Wed2:218.22:537.38:55-1.38:560.27:209:50New Moon19Wed
20Thu2:548.63:387.19:36-1.99:310.87:179:52New Moon20Thu
21Fri3:278.84:226.810:15-2.110:051.67:159:54New Moon21Fri
22Sat4:008.75:056.410:54-1.910:392.47:129:56Waxing Crescent22Sat
23Sun4:338.55:496.011:33-1.311:143.37:109:58Waxing Crescent23Sun
24Mon5:088.06:365.512:15-0.47:0810:00Waxing Crescent24Mon
25Tue5:467.57:315.01:020.57:0510:02First Quarter25Tue
26Wed6:306.88:464.712:334.71:571.37:0310:04First Quarter26Wed
27Thu7:256.210:234.71:295.23:091.87:0110:06First Quarter27Thu
28Fri8:415.711:285.02:555.44:301.96:5810:08First Quarter28Fri
29Sat10:115.54:505.05:321.86:5610:10First Quarter29Sat
30Sun12:075.411:27 AM5.66:033.96:161.56:5410:12Waxing Gibbous30Sun
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 10:06 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 First 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