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

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 4h 14m at 9:18 pm (3.2 ft)
Next high tide (tomorrow) : 3:08 am (8.1 ft)
Sunset today : 10:48 pm
Sunrise tomorrow : 6:36 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Aug 1975

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:314.38:296.92:402.51:584.05:409:44Third Quarter1Fri
2Sat10:124.49:367.24:012.13:124.35:429:42Waning Crescent2Sat
3Sun11:304.810:407.65:111.24:274.25:449:40Waning Crescent3Sun
4Mon12:235.46:060.25:333.75:469:38Waning Crescent4Mon
5Tue1:066.06:52-0.76:312.95:489:36New Moon5Tue
6Wed12:318.61:456.67:34-1.67:242.05:509:34New Moon6Wed
7Thu1:218.92:237.28:14-2.18:131.15:529:31New Moon7Thu
8Fri2:089.03:007.78:52-2.39:010.35:549:29New Moon8Fri
9Sat2:568.83:398.19:31-2.19:49-0.15:569:27Waxing Crescent9Sat
10Sun3:448.44:198.410:10-1.410:39-0.35:589:25Waxing Crescent10Sun
11Mon4:337.65:028.410:51-0.511:320.05:599:23Waxing Crescent11Mon
12Tue5:276.85:478.211:330.76:019:20First Quarter12Tue
13Wed6:265.96:397.912:310.412:201.96:039:18First Quarter13Wed
14Thu7:405.27:397.61:411.01:153.16:059:16First Quarter14Thu
15Fri9:174.98:527.43:061.22:264.06:079:14First Quarter15Fri
16Sat10:515.110:077.44:311.13:544.36:099:11Waxing Gibbous16Sat
17Sun11:575.511:137.55:380.75:134.06:119:09Waxing Gibbous17Sun
18Mon12:455.96:300.26:143.56:139:06Waxing Gibbous18Mon
19Tue12:077.71:236.37:12-0.17:012.96:159:04Full Moon19Tue
20Wed12:527.81:546.67:47-0.37:402.36:179:02Full Moon20Wed
21Thu1:317.92:216.98:17-0.48:151.86:198:59Full Moon21Thu
22Fri2:067.82:477.18:44-0.38:481.46:218:57Full Moon22Fri
23Sat2:407.63:127.29:10-0.19:201.26:238:54Full Moon23Sat
24Sun3:137.43:387.39:360.49:541.16:258:52Waning Gibbous24Sun
25Mon3:467.04:057.410:030.910:291.26:278:49Waning Gibbous25Mon
26Tue4:206.54:357.310:321.611:071.46:298:47Waning Gibbous26Tue
27Wed4:586.05:087.311:032.311:511.86:318:44Waning Gibbous27Wed
28Thu5:415.55:477.111:373.16:338:42Third Quarter28Thu
29Fri6:374.96:377.012:442.112:193.96:348:39Third Quarter29Fri
30Sat7:564.67:426.91:512.31:204.56:368:37Third Quarter30Sat
31Sun9:404.79:007.03:142.12:434.76:388:34Waning Crescent31Sun
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 12:13 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 100% 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 Full Moon (100% 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