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

TIDE TIMES for Monday, June 29, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 9:29 am (-0.8 ft)
Next high tide : in 37m at 2:07 am (8.0 ft)
Sunset today : 11:25 pm
Sunrise tomorrow : 5:54 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Oct 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:596.81:386.87:361.27:512.08:408:11Waxing Gibbous1Thu
2Fri1:407.02:037.38:041.18:241.08:428:08Full Moon2Fri
3Sat2:197.22:287.88:311.18:580.28:448:05Full Moon3Sat
4Sun2:567.32:558.39:001.39:32-0.58:468:03Full Moon4Sun
5Mon3:337.23:248.69:301.710:07-0.88:488:00Full Moon5Mon
6Tue4:117.03:558.810:022.210:46-0.98:507:58Waning Gibbous6Tue
7Wed4:526.74:308.810:352.811:29-0.78:527:55Waning Gibbous7Wed
8Thu5:386.35:108.611:123.48:547:53Waning Gibbous8Thu
9Fri6:325.85:578.212:17-0.211:56 AM4.18:567:50Third Quarter9Fri
10Sat7:385.46:577.71:150.412:524.78:587:47Third Quarter10Sat
11Sun9:055.38:147.22:240.92:115.19:007:45Third Quarter11Sun
12Mon10:315.69:466.93:451.23:534.89:027:42Third Quarter12Mon
13Tue11:336.311:127.05:011.05:263.69:047:40Waning Crescent13Tue
14Wed12:197.06:010.86:332.19:067:37Waning Crescent14Wed
15Thu12:217.212:597.76:500.77:260.79:087:35Waning Crescent15Thu
16Fri1:207.41:358.47:320.88:12-0.59:107:32New Moon16Fri
17Sat2:117.52:118.88:121.08:54-1.39:127:30New Moon17Sat
18Sun2:587.52:459.18:491.59:34-1.69:147:28New Moon18Sun
19Mon3:417.33:199.19:252.110:13-1.69:167:25New Moon19Mon
20Tue4:237.13:529.010:002.710:51-1.19:197:23Waxing Crescent20Tue
21Wed5:056.74:278.610:353.411:30-0.49:217:20Waxing Crescent21Wed
22Thu5:496.35:038.111:114.19:237:18Waxing Crescent22Thu
23Fri6:365.85:437.612:130.411:50 AM4.79:257:16Waxing Crescent23Fri
24Sat7:325.46:316.91:001.312:385.39:277:13First Quarter24Sat
25Sun8:425.27:316.31:552.01:415.69:297:11First Quarter25Sun
26Mon10:025.38:505.93:032.43:135.69:317:09First Quarter26Mon
27Tue11:015.610:185.74:162.64:564.99:337:06First Quarter27Tue
28Wed11:406.111:305.85:142.55:593.89:357:04Waxing Gibbous28Wed
29Thu12:126.75:582.46:442.69:377:02Waxing Gibbous29Thu
30Fri12:276.112:427.36:362.47:221.49:407:00Waxing Gibbous30Fri
31Sat1:166.31:127.97:112.47:590.39:426:57Waxing Gibbous31Sat
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 5:48 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