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

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 6h 50m at 10:54 am (-2.8 ft)
Next high tide : 5:11 pm (7.1 ft)
Sunset today : 11:10 pm
Sunrise tomorrow : 6:14 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Oct 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:235.66:407.71:010.212:364.58:408:10Third Quarter1Sat
2Sun8:465.27:417.02:061.21:345.48:428:08Third Quarter2Sun
3Mon10:385.19:066.53:331.93:075.88:448:05Third Quarter3Mon
4Tue11:535.510:416.45:052.05:105.58:468:03Waning Crescent4Tue
5Wed12:385.96:081.86:194.58:488:00Waning Crescent5Wed
6Thu1:106.36:531.57:063.58:507:57Waning Crescent6Thu
7Fri12:456.71:356.77:281.37:442.48:527:55Waning Crescent7Fri
8Sat1:286.91:577.17:561.28:171.58:547:52Waning Crescent8Sat
9Sun2:067.02:197.58:221.38:470.78:567:50New Moon9Sun
10Mon2:417.12:427.98:471.59:170.18:587:47New Moon10Mon
11Tue3:157.03:068.29:131.99:47-0.39:007:45New Moon11Tue
12Wed3:496.93:318.39:392.310:19-0.49:027:42New Moon12Wed
13Thu4:246.73:598.410:082.910:54-0.39:047:40Waxing Crescent13Thu
14Fri5:026.44:298.410:373.511:330.09:067:37Waxing Crescent14Fri
15Sat5:445.95:048.211:094.29:087:35Waxing Crescent15Sat
16Sun6:355.55:487.912:180.511:48 AM4.89:107:32First Quarter16Sun
17Mon7:415.16:447.41:131.012:405.39:137:30First Quarter17Mon
18Tue9:115.18:007.02:221.42:005.69:157:27First Quarter18Tue
19Wed10:365.59:346.73:421.43:445.29:177:25First Quarter19Wed
20Thu11:316.111:026.84:561.15:174.09:197:22Waxing Gibbous20Thu
21Fri12:136.95:540.86:242.39:217:20Waxing Gibbous21Fri
22Sat12:137.112:517.86:420.67:180.69:237:18Waxing Gibbous22Sat
23Sun1:137.41:288.67:250.68:06-0.99:257:15Full Moon23Sun
24Mon2:077.62:059.28:070.98:52-1.99:277:13Full Moon24Mon
25Tue2:577.62:439.68:461.49:35-2.49:297:11Full Moon25Tue
26Wed3:457.53:209.79:262.010:19-2.49:317:08Full Moon26Wed
27Thu4:327.23:599.510:052.711:02-1.99:337:06Waning Gibbous27Thu
28Fri5:216.84:399.110:453.511:48-1.09:367:04Waning Gibbous28Fri
29Sat6:126.35:228.411:284.39:387:02Waning Gibbous29Sat
30Sun6:105.85:107.712:380.111:16 AM5.08:405:59Third Quarter30Sun
31Mon7:205.56:076.912:341.112:165.68:425:57Third Quarter31Mon
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 2:02 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 8% 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 (8% 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