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

TIDE TIMES for Sunday, July 26, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 8:01 am (0.4 ft)
Next high tide : in 1h 16m at 12:20 am (7.3 ft)
Sunset today : 10:56 pm
Sunrise tomorrow : 6:29 am
Moon phase : Waxing Gibbous (87% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jul 1978

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:155.36:090.55:343.24:5610:24Waning Crescent1Sat
2Sun1:065.56:55-0.16:233.34:5610:23Waning Crescent2Sun
3Mon12:227.81:475.87:34-0.57:063.34:5710:23New Moon3Mon
4Tue1:018.02:236.08:09-0.87:453.24:5810:22New Moon4Tue
5Wed1:378.02:566.28:41-1.08:223.04:5910:22New Moon5Wed
6Thu2:128.03:276.39:12-1.08:582.95:0010:21New Moon6Thu
7Fri2:477.93:586.39:42-1.09:342.85:0210:20Waxing Crescent7Fri
8Sat3:217.74:306.310:13-0.810:122.85:0310:19Waxing Crescent8Sat
9Sun3:577.35:036.410:45-0.510:522.85:0410:18Waxing Crescent9Sun
10Mon4:346.95:376.411:19-0.111:372.95:0510:17Waxing Crescent10Mon
11Tue5:166.36:156.511:550.55:0610:16First Quarter11Tue
12Wed6:055.86:596.612:292.912:361.25:0810:15First Quarter12Wed
13Thu7:055.37:506.81:302.71:241.95:0910:14First Quarter13Thu
14Fri8:234.98:487.22:412.32:222.65:1110:13First Quarter14Fri
15Sat9:504.99:497.63:571.63:283.05:1210:12Waxing Gibbous15Sat
16Sun11:105.210:498.25:050.54:353.05:1410:10Waxing Gibbous16Sun
17Mon12:165.76:05-0.65:392.85:1510:09Waxing Gibbous17Mon
18Tue1:116.36:58-1.66:392.35:1710:08Full Moon18Tue
19Wed12:419.21:596.87:47-2.47:341.85:1810:06Full Moon19Wed
20Thu1:339.42:447.28:32-2.98:271.35:2010:05Full Moon20Thu
21Fri2:239.43:297.69:16-3.09:170.95:2210:03Waning Gibbous21Fri
22Sat3:129.14:137.79:59-2.710:080.85:2310:01Waning Gibbous22Sat
23Sun4:028.54:577.710:42-2.011:000.95:2510:00Waning Gibbous23Sun
24Mon4:527.75:427.611:24-1.011:561.25:279:58Waning Gibbous24Mon
25Tue5:456.86:287.412:080.25:289:56Third Quarter25Tue
26Wed6:435.97:197.212:571.612:551.45:309:55Third Quarter26Wed
27Thu7:545.28:167.02:081.91:482.55:329:53Third Quarter27Thu
28Fri9:234.89:187.03:311.92:523.45:349:51Third Quarter28Fri
29Sat10:524.810:197.14:461.64:033.95:359:49Waning Crescent29Sat
30Sun11:595.111:137.35:461.15:094.05:379:47Waning Crescent30Sun
31Mon12:495.56:350.66:043.85:399:45Waning Crescent31Mon
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 4:10 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 spring phase. Tonight's moon is 87% 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 Waxing Gibbous (87% 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