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

TIDE TIMES for Thursday, August 6, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 1h 55m at 2:42 am (1.4 ft)
Next high tide : 8:32 am (4.7 ft)
Sunset today : 10:32 pm
Sunrise tomorrow : 6:51 am
Moon phase : Third Quarter (42% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Feb 1962

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:517.911:345.83:404.35:160.28:305:09Waning Crescent1Thu
2Fri10:488.54:453.96:03-1.08:285:12Waning Crescent2Fri
3Sat12:206.411:40 AM9.15:423.36:47-1.98:265:14New Moon3Sat
4Sun1:017.012:309.56:342.57:29-2.58:245:16New Moon4Sun
5Mon1:417.51:179.67:231.78:09-2.88:225:18New Moon5Mon
6Tue2:217.82:059.48:111.18:50-2.68:205:20Waxing Crescent6Tue
7Wed3:018.12:528.98:590.79:30-1.98:185:22Waxing Crescent7Wed
8Thu3:428.23:428.19:500.610:11-0.98:165:25Waxing Crescent8Thu
9Fri4:258.24:357.110:440.810:540.38:145:27First Quarter9Fri
10Sat5:118.05:346.211:441.211:411.68:125:29First Quarter10Sat
11Sun6:027.76:495.312:561.68:095:31First Quarter11Sun
12Mon7:017.58:305.012:352.92:241.78:075:33First Quarter12Mon
13Tue8:117.310:085.11:454.03:481.48:055:36Waxing Gibbous13Tue
14Wed9:227.411:175.53:114.44:540.88:035:38Waxing Gibbous14Wed
15Thu10:247.54:284.45:450.38:005:40Waxing Gibbous15Thu
16Fri12:056.011:16 AM7.85:264.06:26-0.17:585:42Waxing Gibbous16Fri
17Sat12:426.311:59 AM8.06:123.57:01-0.47:565:44Full Moon17Sat
18Sun1:136.612:378.16:503.07:31-0.67:545:46Full Moon18Sun
19Mon1:406.81:128.17:242.57:58-0.77:515:49Full Moon19Mon
20Tue2:067.01:458.07:562.18:24-0.57:495:51Full Moon20Tue
21Wed2:317.12:177.78:281.88:50-0.27:465:53Waning Gibbous21Wed
22Thu2:577.22:507.39:011.69:180.27:445:55Waning Gibbous22Thu
23Fri3:237.23:246.99:361.69:460.97:425:57Waning Gibbous23Fri
24Sat3:527.24:016.310:151.710:171.67:395:59Waning Gibbous24Sat
25Sun4:247.14:445.710:591.910:512.57:376:01Third Quarter25Sun
26Mon5:027.15:395.111:512.211:323.47:346:04Third Quarter26Mon
27Tue5:497.06:574.712:592.37:326:06Third Quarter27Tue
28Wed6:517.08:434.712:304.12:222.07:296:08Third Quarter28Wed
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 5:37 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 42% 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 Third Quarter (42% 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