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 (tomorrow) : in 4h 15m at 12:14 am (3.0 ft)
Next high tide (tomorrow) : 5:53 am (6.7 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 - Dec 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:357.06:097.412:05-0.712:243.69:435:07Third Quarter1Mon
2Tue7:377.07:226.61:010.31:423.69:455:07Third Quarter2Tue
3Wed8:437.18:486.02:041.23:133.29:465:06Third Quarter3Wed
4Thu9:447.410:145.93:111.94:332.39:485:05Waning Crescent4Thu
5Fri10:387.811:276.04:162.35:351.39:495:05Waning Crescent5Fri
6Sat11:258.25:132.76:260.49:515:04Waning Crescent6Sat
7Sun12:276.312:078.46:032.97:10-0.39:525:03Waning Crescent7Sun
8Mon1:166.512:458.66:473.17:48-0.79:535:03New Moon8Mon
9Tue1:586.71:218.77:273.28:23-0.99:545:03New Moon9Tue
10Wed2:366.81:558.78:043.48:56-0.99:565:02New Moon10Wed
11Thu3:126.82:288.68:393.59:28-0.89:575:02New Moon11Thu
12Fri3:466.83:018.49:153.610:00-0.69:585:02Waxing Crescent12Fri
13Sat4:216.73:358.09:513.810:34-0.29:595:02Waxing Crescent13Sat
14Sun4:566.54:117.610:304.011:090.310:005:02Waxing Crescent14Sun
15Mon5:336.44:517.011:134.211:460.910:015:02Waxing Crescent15Mon
16Tue6:146.35:356.412:024.410:025:02First Quarter16Tue
17Wed6:596.36:305.812:271.51:014.410:025:02First Quarter17Wed
18Thu7:506.57:405.31:142.12:134.110:035:03First Quarter18Thu
19Fri8:446.89:055.12:082.73:313.410:045:03First Quarter19Fri
20Sat9:387.210:285.33:093.14:402.410:045:04Waxing Gibbous20Sat
21Sun10:297.811:375.74:103.35:361.110:055:04Waxing Gibbous21Sun
22Mon11:198.55:093.36:26-0.110:055:05Waxing Gibbous22Mon
23Tue12:356.212:079.16:033.17:13-1.210:055:05Full Moon23Tue
24Wed1:266.712:549.66:552.97:58-2.110:065:06Full Moon24Wed
25Thu2:127.11:419.97:452.58:42-2.710:065:07Full Moon25Thu
26Fri2:587.52:289.98:342.39:26-2.810:065:08Full Moon26Fri
27Sat3:437.63:169.69:232.110:11-2.610:065:08Waning Gibbous27Sat
28Sun4:297.74:069.110:142.210:56-1.910:065:09Waning Gibbous28Sun
29Mon5:177.74:588.211:092.311:42-1.010:065:10Waning Gibbous29Mon
30Tue6:077.65:547.312:102.510:065:12Third Quarter30Tue
31Wed6:597.56:596.412:310.21:192.710:065:13Third Quarter31Wed
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 3:03 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 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