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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide (tomorrow) : 12:14 am (3.0 ft)
Next high tide : in 3h 06m at 6:29 pm (6.2 ft)
Sunset today : 11:22 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waning Gibbous (79% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Mar 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:516.61:148.27:263.18:11-1.08:277:10New Moon1Sat
2Sun2:216.91:558.28:062.38:42-1.18:247:12New Moon2Sun
3Mon2:497.22:318.08:421.79:09-0.88:227:14New Moon3Mon
4Tue3:147.33:057.79:151.29:35-0.48:197:16New Moon4Tue
5Wed3:397.43:397.39:480.910:000.28:167:18Waxing Crescent5Wed
6Thu4:037.44:126.810:220.910:261.08:147:20Waxing Crescent6Thu
7Fri4:287.44:486.210:571.010:521.98:117:23Waxing Crescent7Fri
8Sat4:557.35:265.611:351.311:202.88:097:25Waxing Crescent8Sat
9Sun5:267.26:125.012:201.88:067:27First Quarter9Sun
10Mon6:046.97:174.41:162.38:047:29First Quarter10Mon
11Tue6:546.79:184.212:284.72:352.58:017:31First Quarter11Tue
12Wed8:066.611:214.51:345.44:122.17:587:33First Quarter12Wed
13Thu9:326.73:205.65:251.37:567:35Waxing Gibbous13Thu
14Fri12:095.110:47 AM7.14:525.16:150.37:537:37Waxing Gibbous14Fri
15Sat12:415.711:48 AM7.75:574.06:56-0.67:517:39Waxing Gibbous15Sat
16Sun1:116.412:408.16:492.77:32-1.37:487:41Full Moon16Sun
17Mon1:417.01:278.47:351.38:08-1.67:457:43Full Moon17Mon
18Tue2:137.72:138.58:190.18:42-1.67:437:45Full Moon18Tue
19Wed2:458.32:598.39:02-0.99:18-1.27:407:47Full Moon19Wed
20Thu3:198.73:457.89:47-1.59:54-0.37:387:49Waning Gibbous20Thu
21Fri3:568.94:347.210:34-1.610:320.77:357:51Waning Gibbous21Fri
22Sat4:358.85:286.411:24-1.211:122.07:327:53Waning Gibbous22Sat
23Sun5:188.56:305.612:20-0.57:307:55Third Quarter23Sun
24Mon6:088.07:535.01:280.47:277:57Third Quarter24Mon
25Tue7:117.39:484.912:564.42:581.07:247:59Third Quarter25Tue
26Wed8:366.911:145.32:245.14:310.97:228:01Third Quarter26Wed
27Thu10:096.84:204.95:380.67:198:03Waning Crescent27Thu
28Fri12:085.811:23 AM7.05:404.16:290.27:178:05Waning Crescent28Fri
29Sat12:476.312:187.26:343.07:08-0.17:148:07Waning Crescent29Sat
30Sun1:186.71:037.37:172.17:40-0.27:118:09New Moon30Sun
31Mon1:457.11:427.37:521.28:08-0.17:098:12New Moon31Mon
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 9:21 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 transitional phase. Tonight's moon is 79% 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 Waning Gibbous (79% 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