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

TIDE TIMES for Sunday, August 16, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide (tomorrow) : 12:06 am (0.6 ft)
Next high tide : in 44m at 5:41 pm (7.8 ft)
Sunset today : 10:10 pm
Sunrise tomorrow : 7:11 am
Moon phase : Waxing Crescent (20% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - May 1946

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:328.81:197.37:15-2.37:130.54:528:14New Moon1Wed
2Thu1:109.22:087.28:00-2.97:541.14:508:16New Moon2Thu
3Fri1:519.42:596.98:46-3.18:371.74:488:18Waxing Crescent3Fri
4Sat2:339.33:526.59:34-2.79:222.54:468:20Waxing Crescent4Sat
5Sun3:198.94:516.110:27-2.010:133.34:448:22Waxing Crescent5Sun
6Mon4:118.25:575.711:24-1.011:144.04:418:24First Quarter6Mon
7Tue5:107.47:165.612:31-0.14:398:26First Quarter7Tue
8Wed6:226.68:345.712:344.41:470.54:378:28First Quarter8Wed
9Thu7:496.19:356.12:184.22:590.84:358:29First Quarter9Thu
10Fri9:135.910:206.53:433.33:571.04:338:31Waxing Gibbous10Fri
11Sat10:215.910:576.94:432.24:441.14:318:33Waxing Gibbous11Sat
12Sun11:166.011:297.25:301.25:231.34:298:35Waxing Gibbous12Sun
13Mon12:026.16:100.35:571.64:278:37Waxing Gibbous13Mon
14Tue12:436.26:44-0.36:281.94:258:39Full Moon14Tue
15Wed12:247.81:206.27:16-0.86:582.34:248:41Full Moon15Wed
16Thu12:518.01:566.27:47-1.07:282.74:228:43Full Moon16Thu
17Fri1:198.02:316.18:18-1.17:593.14:208:45Full Moon17Fri
18Sat1:498.03:085.98:51-0.98:313.54:188:46Waning Gibbous18Sat
19Sun2:207.83:475.69:27-0.79:063.94:178:48Waning Gibbous19Sun
20Mon2:557.64:305.410:06-0.39:444.24:158:50Waning Gibbous20Mon
21Tue3:337.25:195.210:490.110:314.64:138:52Waning Gibbous21Tue
22Wed4:196.86:175.111:390.411:324.74:128:53Third Quarter22Wed
23Thu5:156.37:195.312:350.74:108:55Third Quarter23Thu
24Fri6:265.98:185.712:494.51:360.94:098:57Third Quarter24Fri
25Sat7:495.69:076.32:153.82:361.04:078:58Third Quarter25Sat
26Sun9:095.79:517.13:282.53:321.14:069:00Waning Crescent26Sun
27Mon10:195.910:337.94:290.94:231.14:049:01Waning Crescent27Mon
28Tue11:226.211:168.65:22-0.65:121.34:039:03Waning Crescent28Tue
29Wed12:196.56:12-1.95:591.54:029:04New Moon29Wed
30Thu1:126.77:00-2.96:461.84:019:06New Moon30Thu
31Fri12:449.62:036.87:47-3.47:332.14:009:07New Moon31Fri
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 8:53 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 Waxing 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