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 5h 16m 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 - Aug 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:384.610:127.04:381.83:453.96:4310:41Third Quarter1Wed
2Thu12:134.75:531.44:574.56:4510:39Waning Crescent2Thu
3Fri1:225.06:541.06:074.76:4710:37Waning Crescent3Fri
4Sat12:087.32:105.47:440.57:054.66:4910:35Waning Crescent4Sat
5Sun12:597.52:465.78:250.17:534.26:5110:33Waning Crescent5Sun
6Mon1:437.83:175.99:00-0.38:333.86:5310:31New Moon6Mon
7Tue2:228.03:456.29:31-0.69:093.36:5410:29New Moon7Tue
8Wed2:598.14:116.39:59-0.89:442.96:5610:27New Moon8Wed
9Thu3:338.04:386.510:26-0.910:192.56:5810:24New Moon9Thu
10Fri4:077.85:046.610:54-0.810:552.27:0010:22Waxing Crescent10Fri
11Sat4:427.55:326.811:22-0.411:332.07:0210:20Waxing Crescent11Sat
12Sun5:197.06:016.911:520.27:0410:18Waxing Crescent12Sun
13Mon6:006.46:347.112:161.912:241.07:0610:15Waxing Crescent13Mon
14Tue6:485.87:137.21:041.81:001.97:0810:13First Quarter14Tue
15Wed7:485.28:017.32:011.81:422.97:1010:11First Quarter15Wed
16Thu9:104.79:027.43:121.72:383.87:1210:08First Quarter16Thu
17Fri10:564.710:157.74:361.33:544.57:1410:06Waxing Gibbous17Fri
18Sat12:265.15:560.55:174.57:1610:03Waxing Gibbous18Sat
19Sun1:275.77:02-0.56:324.07:1810:01Waxing Gibbous19Sun
20Mon12:368.62:156.37:57-1.47:363.17:209:59Full Moon20Mon
21Tue1:359.12:566.98:44-2.18:322.17:229:56Full Moon21Tue
22Wed2:299.33:357.49:26-2.49:221.27:249:54Full Moon22Wed
23Thu3:199.24:127.710:05-2.310:100.57:259:51Full Moon23Thu
24Fri4:068.84:498.010:43-1.810:570.27:279:49Waning Gibbous24Fri
25Sat4:528.25:268.011:20-0.911:440.27:299:46Waning Gibbous25Sat
26Sun5:397.46:037.911:560.27:319:44Waning Gibbous26Sun
27Mon6:286.56:417.612:330.512:321.57:339:41Third Quarter27Mon
28Tue7:225.67:237.31:251.11:102.87:359:39Third Quarter28Tue
29Wed8:304.98:126.92:261.71:554.07:379:36Third Quarter29Wed
30Thu10:154.69:176.63:462.12:565.07:399:33Third Quarter30Thu
31Fri12:034.85:182.14:275.57:419:31Waning Crescent31Fri
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