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

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 37m at 8:13 pm (2.7 ft)
Next high tide (tomorrow) : 2:09 am (9.1 ft)
Sunset today : 10:21 pm
Sunrise tomorrow : 7:01 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Dec 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:166.612:259.36:323.87:37-1.78:434:08Full Moon1Mon
2Tue1:596.71:049.27:134.08:16-1.48:444:07Full Moon2Tue
3Wed2:406.61:428.97:534.28:53-1.18:464:06Waning Gibbous3Wed
4Thu3:196.52:208.58:324.49:31-0.58:474:06Waning Gibbous4Thu
5Fri3:596.32:598.09:134.510:080.08:494:05Waning Gibbous5Fri
6Sat4:386.13:407.49:584.710:460.78:504:04Waning Gibbous6Sat
7Sun5:196.04:256.610:484.811:261.38:524:04Third Quarter7Sun
8Mon6:036.05:175.911:494.88:534:03Third Quarter8Mon
9Tue6:486.16:225.312:082.01:034.58:544:03Third Quarter9Tue
10Wed7:366.47:454.912:542.72:253.88:554:03Third Quarter10Wed
11Thu8:226.89:114.91:473.33:332.98:574:02Waning Crescent11Thu
12Fri9:067.310:255.12:423.84:271.88:584:02Waning Crescent12Fri
13Sat9:497.811:245.53:364.25:130.88:594:02Waning Crescent13Sat
14Sun10:338.44:274.45:56-0.29:004:02Waning Crescent14Sun
15Mon12:145.911:17 AM8.95:174.46:38-1.09:014:02New Moon15Mon
16Tue12:586.312:019.36:054.37:19-1.79:014:02New Moon16Tue
17Wed1:406.512:469.66:524.08:01-2.19:024:02New Moon17Wed
18Thu2:226.71:319.67:383.78:43-2.39:034:03Waxing Crescent18Thu
19Fri3:056.92:189.38:263.59:25-2.19:044:03Waxing Crescent19Fri
20Sat3:487.03:078.89:183.310:09-1.69:044:03Waxing Crescent20Sat
21Sun4:337.14:008.010:153.110:53-0.89:054:04Waxing Crescent21Sun
22Mon5:197.24:597.011:183.011:390.39:054:04First Quarter22Mon
23Tue6:097.46:086.012:312.79:064:05First Quarter23Tue
24Wed7:027.67:345.312:291.51:552.29:064:06First Quarter24Wed
25Thu7:587.89:115.11:252.63:171.49:064:06Waxing Gibbous25Thu
26Fri8:558.110:385.32:293.64:250.69:064:07Waxing Gibbous26Fri
27Sat9:498.411:445.73:344.25:22-0.29:074:08Waxing Gibbous27Sat
28Sun10:418.64:374.56:10-0.79:074:09Waxing Gibbous28Sun
29Mon12:366.111:29 AM8.85:334.66:53-1.09:074:10Full Moon29Mon
30Tue1:186.312:138.96:224.57:31-1.29:064:11Full Moon30Tue
31Wed1:556.512:538.87:054.38:05-1.19:064:12Full Moon31Wed
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 11:11 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 1% 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 New Moon (1% 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