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

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 3h 15m at 2:17 pm (0.5 ft)
Next high tide : 8:49 pm (6.7 ft)
Sunset today : 11:25 pm
Sunrise tomorrow : 5:50 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Feb 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:535.912:018.46:014.17:20-0.89:296:10Waning Crescent1Mon
2Tue1:406.412:518.66:583.88:02-1.29:276:13New Moon2Tue
3Wed2:186.71:358.77:443.38:38-1.39:256:15New Moon3Wed
4Thu2:526.92:148.68:252.99:11-1.39:236:17New Moon4Thu
5Fri3:247.02:518.49:022.69:41-1.19:216:19New Moon5Fri
6Sat3:537.13:268.09:382.410:10-0.79:196:21Waxing Crescent6Sat
7Sun4:217.14:007.510:142.310:38-0.19:176:23Waxing Crescent7Sun
8Mon4:497.04:366.910:512.311:070.79:146:26Waxing Crescent8Mon
9Tue5:196.95:136.311:312.411:371.69:126:28Waxing Crescent9Tue
10Wed5:516.95:565.612:172.79:106:30First Quarter10Wed
11Thu6:276.86:504.912:102.51:112.99:086:32First Quarter11Thu
12Fri7:126.78:094.512:483.42:202.99:066:34First Quarter12Fri
13Sat8:106.710:044.41:394.33:462.69:046:37First Quarter13Sat
14Sun9:186.911:374.82:534.95:041.89:016:39Waxing Gibbous14Sun
15Mon10:267.34:145.06:020.88:596:41Waxing Gibbous15Mon
16Tue12:315.411:26 AM7.95:254.66:49-0.28:576:43Waxing Gibbous16Tue
17Wed1:106.012:208.46:243.97:30-1.28:546:45Waxing Gibbous17Wed
18Thu1:466.51:088.97:152.98:08-1.98:526:47Full Moon18Thu
19Fri2:207.11:559.28:012.08:45-2.38:506:50Full Moon19Fri
20Sat2:557.62:409.18:471.19:22-2.38:476:52Full Moon20Sat
21Sun3:318.03:268.89:320.410:00-1.98:456:54Waning Gibbous21Sun
22Mon4:088.24:138.210:190.010:38-1.18:426:56Waning Gibbous22Mon
23Tue4:478.35:037.411:100.011:180.18:406:58Waning Gibbous23Tue
24Wed5:298.35:586.412:040.38:387:00Third Quarter24Wed
25Thu6:158.07:055.512:011.41:070.88:357:02Third Quarter25Thu
26Fri7:097.78:375.012:502.82:261.28:337:05Third Quarter26Fri
27Sat8:167.410:285.01:523.93:591.28:307:07Third Quarter27Sat
28Sun9:377.311:495.43:194.65:190.88:287:09Waning Crescent28Sun
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 5:33 pm — 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 49% 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 (49% 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