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

TIDE TIMES for Sunday, July 26, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 7:13 pm (4.7 ft)
Next high tide : in 6h 04m at 2:27 pm (5.3 ft)
Sunset today : 10:54 pm
Sunrise tomorrow : 6:31 am
Moon phase : Waxing Gibbous (93% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Oct 1977

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:226.74:087.810:142.610:540.77:407:11Waning Gibbous1Sat
2Sun5:016.24:437.410:483.411:361.37:427:09Waning Gibbous2Sun
3Mon5:465.75:247.011:274.17:447:06Third Quarter3Mon
4Tue6:415.36:136.612:242.012:154.77:467:03Third Quarter4Tue
5Wed7:565.17:196.21:242.51:205.17:487:01Third Quarter5Wed
6Thu9:255.28:416.12:392.72:495.17:506:58Third Quarter6Thu
7Fri10:295.69:596.23:562.54:154.57:526:56Waning Crescent7Fri
8Sat11:126.111:016.64:532.15:163.57:546:53Waning Crescent8Sat
9Sun11:486.811:537.05:381.66:032.37:566:51Waning Crescent9Sun
10Mon12:227.46:171.26:451.17:586:48Waning Crescent10Mon
11Tue12:407.412:568.16:550.97:250.08:006:46New Moon11Tue
12Wed1:247.71:318.77:330.78:06-1.08:026:43New Moon12Wed
13Thu2:087.82:079.18:110.88:48-1.68:046:40New Moon13Thu
14Fri2:527.82:459.38:491.19:31-1.88:066:38Waxing Crescent14Fri
15Sat3:387.63:269.39:301.610:17-1.68:086:36Waxing Crescent15Sat
16Sun4:277.24:119.010:142.211:07-1.18:106:33Waxing Crescent16Sun
17Mon5:226.85:018.511:033.08:126:31First Quarter17Mon
18Tue6:246.46:007.812:02-0.312:013.78:146:28First Quarter18Tue
19Wed7:376.17:117.21:060.51:144.28:166:26First Quarter19Wed
20Thu8:586.28:386.72:211.12:484.18:186:23First Quarter20Thu
21Fri10:096.610:046.73:401.44:203.48:206:21Waxing Gibbous21Fri
22Sat11:037.111:146.84:451.45:262.38:226:18Waxing Gibbous22Sat
23Sun11:477.65:381.36:181.38:246:16Waxing Gibbous23Sun
24Mon12:117.012:258.06:231.47:020.48:266:14Waxing Gibbous24Mon
25Tue12:597.11:008.37:011.57:40-0.28:286:11Full Moon25Tue
26Wed1:417.21:318.57:361.88:15-0.58:316:09Full Moon26Wed
27Thu2:197.22:018.68:092.18:47-0.68:336:07Full Moon27Thu
28Fri2:557.12:318.58:402.59:20-0.58:356:05Full Moon28Fri
29Sat3:306.93:028.39:123.09:53-0.38:376:02Waning Gibbous29Sat
30Sun3:066.62:348.18:453.49:280.27:395:00Waning Gibbous30Sun
31Mon3:446.33:087.79:203.910:060.77:414:58Waning Gibbous31Mon
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 4:50 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 93% 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 Waxing Gibbous (93% 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