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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 6h 28m at 4:41 am (2.0 ft)
Next high tide : 10:15 am (4.7 ft)
Sunset today : 11:25 pm
Sunrise tomorrow : 5:51 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jul 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:145.99:186.92:382.52:460.75:5711:24Third Quarter1Sun
2Mon9:335.210:127.03:592.23:411.85:5811:23Third Quarter2Mon
3Tue11:004.811:037.25:161.64:382.75:5911:22Waning Crescent3Tue
4Wed12:214.86:210.95:353.36:0011:22Waning Crescent4Wed
5Thu1:285.17:140.36:293.86:0111:21Waning Crescent5Thu
6Fri12:357.62:205.48:00-0.27:194.06:0211:20Waning Crescent6Fri
7Sat1:177.83:025.68:40-0.68:044.06:0311:19New Moon7Sat
8Sun1:578.03:385.89:16-0.88:443.96:0411:18New Moon8Sun
9Mon2:358.14:115.99:50-1.09:223.86:0511:17New Moon9Mon
10Tue3:118.14:436.010:22-1.09:583.66:0711:16New Moon10Tue
11Wed3:478.05:146.010:53-1.010:353.56:0811:15Waxing Crescent11Wed
12Thu4:227.85:456.011:24-0.911:133.46:0911:14Waxing Crescent12Thu
13Fri4:587.46:176.011:56-0.611:553.36:1111:13Waxing Crescent13Fri
14Sat5:376.96:506.112:29-0.26:1211:12Waxing Crescent14Sat
15Sun6:196.37:266.312:423.21:040.46:1411:10First Quarter15Sun
16Mon7:095.78:066.51:353.01:431.26:1511:09First Quarter16Mon
17Tue8:115.18:536.82:372.72:272.06:1711:08First Quarter17Tue
18Wed9:314.79:477.23:502.23:212.96:1811:06First Quarter18Wed
19Thu11:034.710:467.75:051.34:253.56:2011:05Waxing Gibbous19Thu
20Fri12:285.06:140.35:333.86:2211:03Waxing Gibbous20Fri
21Sat1:355.57:15-0.86:383.76:2311:01Waxing Gibbous21Sat
22Sun12:458.82:306.08:09-1.87:403.36:2511:00Full Moon22Sun
23Mon1:419.33:176.48:59-2.68:362.86:2710:58Full Moon23Mon
24Tue2:359.64:016.89:45-3.09:292.26:2910:56Full Moon24Tue
25Wed3:269.64:447.110:29-3.110:211.76:3010:55Waning Gibbous25Wed
26Thu4:169.25:267.311:12-2.711:131.56:3210:53Waning Gibbous26Thu
27Fri5:068.66:087.411:53-2.06:3410:51Waning Gibbous27Fri
28Sat5:567.76:517.412:061.412:34-0.96:3610:49Waning Gibbous28Sat
29Sun6:496.77:347.31:021.51:150.36:3810:47Third Quarter29Sun
30Mon7:485.78:217.12:041.71:571.66:3910:45Third Quarter30Mon
31Tue9:024.99:137.03:161.82:462.96:4110:43Third Quarter31Tue
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 7:28 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 neap phase. Tonight's moon is 59% 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 minimum.

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 (59% illuminated). This places Chiachi Island (East Side), AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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