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

TIDE TIMES for Sunday, July 26, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 2h 46m at 8:01 am (0.4 ft)
Next high tide : 2:27 pm (5.3 ft)
Sunset today : 10:54 pm
Sunrise tomorrow : 6:31 am
Moon phase : Waxing Gibbous (93% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

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

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:356.85:255.911:523.511:571.89:064:13Third Quarter1Sun
2Mon6:257.06:365.41:013.29:064:15Third Quarter2Mon
3Tue7:227.38:055.212:522.52:202.69:054:16Third Quarter3Tue
4Wed8:237.79:345.41:573.13:361.59:054:17Waning Crescent4Wed
5Thu9:238.310:485.83:053.44:400.39:044:19Waning Crescent5Thu
6Fri10:218.911:486.44:113.35:35-0.99:044:20Waning Crescent6Fri
7Sat11:169.45:133.06:25-1.99:034:22New Moon7Sat
8Sun12:397.012:089.86:092.67:12-2.69:024:23New Moon8Sun
9Mon1:267.412:589.97:022.17:56-2.99:024:25New Moon9Mon
10Tue2:107.81:469.77:521.88:39-2.79:014:26Waxing Crescent10Tue
11Wed2:547.92:339.28:411.69:21-2.29:004:28Waxing Crescent11Wed
12Thu3:378.03:218.59:311.710:02-1.38:594:30Waxing Crescent12Thu
13Fri4:217.94:107.610:242.010:44-0.28:584:31Waxing Crescent13Fri
14Sat5:067.75:026.611:202.311:271.08:574:33First Quarter14Sat
15Sun5:537.46:035.712:242.78:564:35First Quarter15Sun
16Mon6:457.27:215.012:142.21:442.88:554:37First Quarter16Mon
17Tue7:447.19:004.81:083.33:092.58:544:39First Quarter17Tue
18Wed8:457.110:265.02:164.14:182.08:524:41Waxing Gibbous18Wed
19Thu9:427.311:265.43:274.45:111.38:514:43Waxing Gibbous19Thu
20Fri10:327.64:304.45:540.78:504:45Waxing Gibbous20Fri
21Sat12:105.811:16 AM7.95:214.26:300.28:484:47Waxing Gibbous21Sat
22Sun12:446.111:55 AM8.16:043.97:02-0.38:474:49Full Moon22Sun
23Mon1:156.412:328.36:423.57:31-0.68:454:51Full Moon23Mon
24Tue1:446.71:078.47:183.17:59-0.88:444:53Full Moon24Tue
25Wed2:126.91:418.37:522.78:28-0.98:424:55Full Moon25Wed
26Thu2:407.12:158.18:282.58:58-0.78:404:57Waning Gibbous26Thu
27Fri3:107.22:507.79:052.39:29-0.48:394:59Waning Gibbous27Fri
28Sat3:417.33:297.29:462.210:020.28:375:01Waning Gibbous28Sat
29Sun4:157.44:126.610:312.210:390.98:355:03Waning Gibbous29Sun
30Mon4:547.45:046.011:232.211:211.88:335:05Third Quarter30Mon
31Tue5:407.56:105.412:272.28:315:07Third Quarter31Tue
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 11:14 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 93% 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 (93% 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