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

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 4:29 am (1.3 ft)
Next high tide (tomorrow) : in 3m at 9:15 pm (7.4 ft)
Sunset today : 11:19 pm
Sunrise tomorrow : 6:03 am
Moon phase : Third Quarter (39% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jun 1997

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:155.86:230.66:091.55:5811:10Waning Crescent1Sun
2Mon12:228.01:196.17:19-0.57:021.75:5711:11Waning Crescent2Mon
3Tue1:098.42:156.38:09-1.37:521.85:5611:12New Moon3Tue
4Wed1:538.73:046.58:53-1.98:382.05:5511:13New Moon4Wed
5Thu2:358.83:496.69:35-2.19:212.25:5411:14New Moon5Thu
6Fri3:148.74:316.610:14-2.110:022.55:5411:16New Moon6Fri
7Sat3:538.55:126.510:52-1.810:422.85:5311:17Waxing Crescent7Sat
8Sun4:318.15:526.311:30-1.311:233.15:5211:18Waxing Crescent8Sun
9Mon5:107.66:326.112:07-0.75:5211:19Waxing Crescent9Mon
10Tue5:517.07:145.912:073.412:460.05:5111:19Waxing Crescent10Tue
11Wed6:356.37:595.812:563.71:270.65:5111:20First Quarter11Wed
12Thu7:255.78:485.91:523.82:111.35:5111:21First Quarter12Thu
13Fri8:275.19:406.03:003.73:011.95:5011:22First Quarter13Fri
14Sat9:424.810:316.34:183.33:572.45:5011:22First Quarter14Sat
15Sun11:014.811:186.75:282.64:532.75:5011:23Waxing Gibbous15Sun
16Mon12:115.06:231.75:472.95:5011:24Waxing Gibbous16Mon
17Tue12:027.21:095.37:100.76:372.95:5011:24Waxing Gibbous17Tue
18Wed12:457.71:595.77:52-0.27:252.85:5011:24Waxing Gibbous18Wed
19Thu1:278.22:446.18:33-1.18:112.65:5011:25Full Moon19Thu
20Fri2:098.63:276.49:13-1.88:562.55:5011:25Full Moon20Fri
21Sat2:528.94:096.69:54-2.39:412.35:5011:25Full Moon21Sat
22Sun3:359.04:526.810:35-2.610:282.15:5111:25Waning Gibbous22Sun
23Mon4:208.85:366.911:17-2.511:172.15:5111:26Waning Gibbous23Mon
24Tue5:088.46:237.012:02-2.15:5111:26Waning Gibbous24Tue
25Wed5:597.77:117.012:112.112:48-1.45:5211:25Third Quarter25Wed
26Thu6:567.08:047.11:102.21:37-0.55:5211:25Third Quarter26Thu
27Fri8:016.29:017.22:182.12:310.45:5311:25Third Quarter27Fri
28Sat9:195.510:017.43:371.93:311.35:5411:25Third Quarter28Sat
29Sun10:465.211:007.74:591.34:352.15:5411:25Waning Crescent29Sun
30Mon12:075.36:100.55:392.55:5511:24Waning Crescent30Mon
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 12:52 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 transitional phase. Tonight's moon is 39% 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 shifting between spring and neap.

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 Third Quarter (39% illuminated). This places Chiachi Island (East Side), AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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