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

TIDE TIMES for Saturday, July 25, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 6:15 pm (5.0 ft)
Next high tide : in 3h 51m at 1:47 pm (4.9 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 - May 1979

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:477.56:095.711:460.011:403.85:529:14Waxing Crescent1Tue
2Wed5:306.97:065.312:340.85:509:16First Quarter2Wed
3Thu6:216.28:155.212:334.31:301.55:489:18First Quarter3Thu
4Fri7:255.79:265.31:444.62:371.95:469:20First Quarter4Fri
5Sat8:465.410:225.63:184.43:462.05:449:22First Quarter5Sat
6Sun10:045.411:046.14:383.74:422.05:419:24Waxing Gibbous6Sun
7Mon11:085.611:406.55:322.75:271.85:399:26Waxing Gibbous7Mon
8Tue12:005.96:151.76:061.75:379:28Waxing Gibbous8Tue
9Wed12:137.112:466.26:530.76:431.65:359:29Waxing Gibbous9Wed
10Thu12:457.61:286.47:29-0.27:201.65:339:31Full Moon10Thu
11Fri1:188.02:096.68:04-1.07:561.65:319:33Full Moon11Fri
12Sat1:528.42:496.78:41-1.68:331.85:299:35Full Moon12Sat
13Sun2:278.63:316.79:20-1.99:122.05:279:37Waning Gibbous13Sun
14Mon3:048.64:156.510:01-2.09:532.45:259:39Waning Gibbous14Mon
15Tue3:458.55:036.310:45-1.810:392.75:249:41Waning Gibbous15Tue
16Wed4:318.15:566.111:34-1.411:323.15:229:43Waning Gibbous16Wed
17Thu5:237.66:566.012:27-0.85:209:45Third Quarter17Thu
18Fri6:247.08:026.112:363.41:27-0.25:189:46Third Quarter18Fri
19Sat7:396.49:096.41:543.42:330.45:179:48Third Quarter19Sat
20Sun9:046.010:096.93:222.83:410.75:159:50Waning Crescent20Sun
21Mon10:256.011:017.44:411.74:420.95:139:52Waning Crescent21Mon
22Tue11:366.111:488.05:440.65:371.15:129:53Waning Crescent22Tue
23Wed12:366.36:37-0.56:261.35:109:55Waning Crescent23Wed
24Thu12:318.41:286.57:24-1.37:121.55:099:57New Moon24Thu
25Fri1:118.62:156.68:06-1.87:541.85:079:58New Moon25Fri
26Sat1:508.72:596.68:46-2.08:342.15:0610:00New Moon26Sat
27Sun2:278.63:406.59:24-1.99:132.55:0510:01Waxing Crescent27Sun
28Mon3:048.34:216.410:02-1.69:512.95:0310:03Waxing Crescent28Mon
29Tue3:418.05:026.110:40-1.110:323.35:0210:04Waxing Crescent29Tue
30Wed4:197.55:455.911:18-0.411:153.75:0110:06Waxing Crescent30Wed
31Thu5:006.96:305.711:590.25:0010:07First Quarter31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9459085)

Common Questions About Chiachi Island (East Side), AK Tides

Show All
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 4:01 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 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