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

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 2h 47m at 9:18 pm (3.2 ft)
Next high tide (tomorrow) : 3:08 am (8.1 ft)
Sunset today : 10:48 pm
Sunrise tomorrow : 6:36 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jun 1975

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:365.67:585.81:023.81:221.54:5910:09Third Quarter1Sun
2Mon7:415.08:496.02:143.62:132.14:5810:10Third Quarter2Mon
3Tue9:004.79:386.33:343.13:072.64:5710:11Third Quarter3Tue
4Wed10:194.710:236.74:412.44:023.04:5610:12Waning Crescent4Wed
5Thu11:264.911:067.25:331.54:543.14:5510:14Waning Crescent5Thu
6Fri12:225.26:180.65:423.24:5410:15Waning Crescent6Fri
7Sat1:095.56:59-0.36:283.24:5310:16Waning Crescent7Sat
8Sun12:288.11:525.97:38-1.07:133.14:5310:17New Moon8Sun
9Mon1:098.52:326.18:16-1.77:562.94:5210:18New Moon9Mon
10Tue1:508.73:126.38:55-2.18:392.74:5210:19New Moon10Tue
11Wed2:328.83:536.59:34-2.39:242.64:5110:20Waxing Crescent11Wed
12Thu3:158.64:366.610:15-2.310:122.54:5110:21Waxing Crescent12Thu
13Fri4:018.35:206.710:58-2.011:042.44:5010:21Waxing Crescent13Fri
14Sat4:527.76:066.811:42-1.44:5010:22Waxing Crescent14Sat
15Sun5:476.96:566.912:032.312:30-0.54:5010:23First Quarter15Sun
16Mon6:526.17:517.11:112.21:210.44:5010:23First Quarter16Mon
17Tue8:085.58:497.42:281.82:181.34:5010:24First Quarter17Tue
18Wed9:365.19:487.73:491.23:212.14:5010:24Waxing Gibbous18Wed
19Thu10:595.210:448.15:010.34:252.64:5010:25Waxing Gibbous19Thu
20Fri12:105.56:02-0.55:272.94:5010:25Waxing Gibbous20Fri
21Sat1:085.86:55-1.26:243.04:5010:25Full Moon21Sat
22Sun12:268.61:566.17:41-1.77:152.94:5010:25Full Moon22Sun
23Mon1:138.72:396.38:23-1.98:022.94:5110:25Full Moon23Mon
24Tue1:568.63:186.59:01-1.98:452.84:5110:26Full Moon24Tue
25Wed2:368.43:556.59:37-1.79:252.74:5110:26Waning Gibbous25Wed
26Thu3:148.04:306.510:12-1.310:062.84:5210:25Waning Gibbous26Thu
27Fri3:527.65:056.410:45-0.810:482.84:5210:25Waning Gibbous27Fri
28Sat4:317.05:396.311:18-0.211:322.94:5310:25Waning Gibbous28Sat
29Sun5:126.36:156.311:520.54:5410:25Third Quarter29Sun
30Mon5:565.76:546.312:213.012:281.34:5410:24Third Quarter30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9459085)

Common Questions About Chiachi Island (East Side), AK Tides

Show All
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 12:13 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 100% 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 Full Moon (100% 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