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

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 12:46 pm (-1.6 ft)
Next high tide : in 2h 38m at 5:47 am (8.0 ft)
Sunset today : 11:25 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waxing Crescent (29% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jan 2037

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:536.61:129.57:173.38:19-2.210:065:14Full Moon1Thu
2Fri2:377.01:589.88:043.09:02-2.610:055:15Full Moon2Fri
3Sat3:207.22:439.78:512.89:45-2.710:055:17Waning Gibbous3Sat
4Sun4:037.43:319.49:392.610:28-2.410:045:18Waning Gibbous4Sun
5Mon4:487.54:208.810:302.511:13-1.710:045:19Waning Gibbous5Mon
6Tue5:357.55:138.011:262.611:59-0.810:035:21Waning Gibbous6Tue
7Wed6:247.56:127.012:292.710:025:23Third Quarter7Wed
8Thu7:177.57:216.112:480.31:422.610:025:24Third Quarter8Thu
9Fri8:157.58:485.41:421.53:092.310:015:26Third Quarter9Fri
10Sat9:177.610:225.32:432.64:311.710:005:27Waning Crescent10Sat
11Sun10:167.811:435.53:513.35:370.99:595:29Waning Crescent11Sun
12Mon11:108.14:573.86:310.19:585:31Waning Crescent12Mon
13Tue12:455.811:59 AM8.35:573.97:17-0.49:575:33Waning Crescent13Tue
14Wed1:336.212:438.56:483.97:56-0.89:565:34New Moon14Wed
15Thu2:136.51:238.67:323.88:31-1.09:555:36New Moon15Thu
16Fri2:476.61:598.68:103.69:03-1.09:545:38New Moon16Fri
17Sat3:196.72:348.58:463.49:33-0.99:525:40New Moon17Sat
18Sun3:496.83:088.29:213.310:03-0.79:515:42Waxing Crescent18Sun
19Mon4:196.83:427.89:573.210:33-0.39:505:44Waxing Crescent19Mon
20Tue4:496.74:177.310:353.211:030.29:485:46Waxing Crescent20Tue
21Wed5:206.74:556.811:153.311:360.99:475:48Waxing Crescent21Wed
22Thu5:546.75:376.112:013.39:455:50First Quarter22Thu
23Fri6:326.76:285.512:111.712:553.49:445:52First Quarter23Fri
24Sat7:166.77:364.912:502.52:013.39:425:54First Quarter24Sat
25Sun8:106.99:094.71:403.33:202.89:415:56First Quarter25Sun
26Mon9:117.210:464.92:434.04:361.99:395:58Waxing Gibbous26Mon
27Tue10:137.711:595.43:554.35:400.89:376:00Waxing Gibbous27Tue
28Wed11:128.35:044.26:33-0.49:366:02Waxing Gibbous28Wed
29Thu12:536.012:078.96:063.87:20-1.49:346:05Waxing Gibbous29Thu
30Fri1:386.612:599.47:023.18:04-2.39:326:07Full Moon30Fri
31Sat2:207.11:489.77:532.48:46-2.89:306:09Full Moon31Sat
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 9:16 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 transitional phase. Tonight's moon is 29% 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 shifting between spring and neap.

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 (29% illuminated). This places Chiachi Island (East Side), AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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