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

TIDE TIMES for Saturday, August 8, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 4:38 pm (4.7 ft)
Next high tide : in 1h 52m at 12:03 pm (4.7 ft)
Sunset today : 10:28 pm
Sunrise tomorrow : 6:55 am
Moon phase : Waning Crescent (20% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Feb 1959

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:477.87:595.112:222.51:591.68:305:09Third Quarter1Sun
2Mon7:587.89:385.21:303.43:271.18:285:11Waning Crescent2Mon
3Tue9:108.010:545.72:503.94:380.38:275:13Waning Crescent3Tue
4Wed10:178.311:506.34:093.85:35-0.58:255:15Waning Crescent4Wed
5Thu11:158.65:163.36:22-1.18:235:17Waning Crescent5Thu
6Fri12:356.812:058.86:112.77:03-1.58:215:20New Moon6Fri
7Sat1:147.212:508.86:582.17:40-1.68:185:22New Moon7Sat
8Sun1:497.51:318.67:401.78:13-1.48:165:24New Moon8Sun
9Mon2:227.62:098.38:191.48:45-1.08:145:26Waxing Crescent9Mon
10Tue2:547.72:467.88:561.49:15-0.38:125:28Waxing Crescent10Tue
11Wed3:247.63:227.29:341.59:460.58:105:31Waxing Crescent11Wed
12Thu3:557.43:596.510:131.810:171.38:085:33Waxing Crescent12Thu
13Fri4:287.24:405.810:552.110:502.38:065:35First Quarter13Fri
14Sat5:047.05:285.211:452.611:273.28:035:37First Quarter14Sat
15Sun5:476.86:334.612:462.98:015:39First Quarter15Sun
16Mon6:426.68:164.412:154.12:102.97:595:41First Quarter16Mon
17Tue7:516.610:004.71:224.73:382.57:565:44Waxing Gibbous17Tue
18Wed9:036.811:005.12:464.94:391.77:545:46Waxing Gibbous18Wed
19Thu10:057.211:415.74:024.55:250.87:525:48Waxing Gibbous19Thu
20Fri10:577.75:013.86:030.07:495:50Waxing Gibbous20Fri
21Sat12:156.311:44 AM8.15:502.96:38-0.87:475:52Full Moon21Sat
22Sun12:476.912:288.56:342.07:12-1.37:455:54Full Moon22Sun
23Mon1:197.41:108.67:161.17:46-1.57:425:57Full Moon23Mon
24Tue1:527.91:528.67:580.38:22-1.47:405:59Full Moon24Tue
25Wed2:278.32:368.28:41-0.28:58-1.07:376:01Waning Gibbous25Wed
26Thu3:048.53:217.79:27-0.39:37-0.27:356:03Waning Gibbous26Thu
27Fri3:448.54:117.010:16-0.210:180.87:326:05Waning Gibbous27Fri
28Sat4:288.35:086.211:110.311:051.97:306:07Third Quarter28Sat
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 2:20 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 spring phase. Tonight's moon is 20% 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 Waning Crescent (20% 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