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

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide (tomorrow) : 4:41 am (2.0 ft)
Next high tide : in 2h 58m at 9:39 pm (6.8 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 - Apr 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:088.56:056.212:01-1.08:039:16Waning Gibbous1Sun
2Mon5:488.47:025.512:52-0.68:019:18Waning Gibbous2Mon
3Tue6:368.08:165.012:313.41:540.17:589:20Third Quarter3Tue
4Wed7:367.59:594.91:274.33:120.67:569:22Third Quarter4Wed
5Thu8:567.111:325.32:484.94:440.67:539:24Third Quarter5Thu
6Fri10:316.94:354.76:000.27:509:26Waning Crescent6Fri
7Sat12:315.911:53 AM7.16:073.76:56-0.27:489:28Waning Crescent7Sat
8Sun1:156.612:587.37:112.47:42-0.57:459:30Waning Crescent8Sun
9Mon1:527.21:527.58:011.08:21-0.67:439:32New Moon9Mon
10Tue2:257.72:397.58:45-0.18:56-0.37:409:34New Moon10Tue
11Wed2:568.13:217.49:24-0.89:280.17:389:36New Moon11Wed
12Thu3:268.34:027.110:01-1.39:590.87:359:38New Moon12Thu
13Fri3:558.34:416.710:37-1.310:301.67:339:40Waxing Crescent13Fri
14Sat4:248.25:206.311:12-1.011:002.47:309:42Waxing Crescent14Sat
15Sun4:548.06:005.811:49-0.511:323.37:279:44Waxing Crescent15Sun
16Mon5:267.66:455.312:290.27:259:46Waxing Crescent16Mon
17Tue6:027.17:404.812:064.11:161.07:239:48First Quarter17Tue
18Wed6:466.69:014.512:464.82:131.77:209:50First Quarter18Wed
19Thu7:446.110:484.61:445.33:302.17:189:52First Quarter19Thu
20Fri9:065.811:505.03:155.54:541.97:159:54First Quarter20Fri
21Sat10:355.75:045.05:531.67:139:56Waxing Gibbous21Sat
22Sun12:265.511:46 AM6.06:143.96:371.17:109:58Waxing Gibbous22Sun
23Mon12:556.112:426.37:012.77:130.87:0810:00Waxing Gibbous23Mon
24Tue1:236.71:306.67:421.47:480.67:0610:02Waxing Gibbous24Tue
25Wed1:527.32:156.88:210.18:220.67:0310:04Full Moon25Wed
26Thu2:218.02:597.08:59-1.08:560.87:0110:06Full Moon26Thu
27Fri2:538.53:437.09:38-1.99:321.26:5910:08Full Moon27Fri
28Sat3:278.94:286.810:19-2.310:091.86:5610:10Waning Gibbous28Sat
29Sun4:049.05:166.511:03-2.410:492.46:5410:12Waning Gibbous29Sun
30Mon4:448.96:096.111:51-2.111:333.16:5210:14Waning Gibbous30Mon
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 1:10 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