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

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide (tomorrow) : 3:22 am (2.4 ft)
Next high tide : in 3h 43m at 8:49 pm (6.7 ft)
Sunset today : 11:25 pm
Sunrise tomorrow : 5:50 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jul 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:468.13:165.88:59-0.98:313.55:5611:24New Moon1Thu
2Fri2:258.33:536.09:34-1.49:113.45:5711:23New Moon2Fri
3Sat3:048.54:316.210:11-1.79:523.25:5811:23New Moon3Sat
4Sun3:438.55:086.310:48-1.910:343.15:5911:22Waxing Crescent4Sun
5Mon4:248.45:486.311:26-1.811:203.06:0011:21Waxing Crescent5Mon
6Tue5:078.06:296.412:07-1.66:0111:21Waxing Crescent6Tue
7Wed5:557.57:126.612:102.812:49-1.06:0211:20Waxing Crescent7Wed
8Thu6:506.88:006.81:082.71:34-0.36:0311:19First Quarter8Thu
9Fri7:536.08:527.02:132.52:240.66:0511:18First Quarter9Fri
10Sat9:105.49:497.43:292.03:211.56:0611:17First Quarter10Sat
11Sun10:395.110:487.84:501.24:232.36:0711:16Waxing Gibbous11Sun
12Mon12:035.26:020.25:282.86:0911:15Waxing Gibbous12Mon
13Tue1:165.67:04-0.76:313.06:1011:14Waxing Gibbous13Tue
14Wed12:408.62:156.07:59-1.57:303.16:1211:12Full Moon14Wed
15Thu1:328.93:046.38:47-2.08:242.96:1311:11Full Moon15Thu
16Fri2:219.03:496.69:32-2.39:122.86:1511:10Full Moon16Fri
17Sat3:079.04:306.710:13-2.29:582.66:1611:08Full Moon17Sat
18Sun3:508.75:096.710:51-2.010:422.66:1811:07Waning Gibbous18Sun
19Mon4:328.35:466.611:28-1.511:252.66:1911:05Waning Gibbous19Mon
20Tue5:137.76:226.512:04-0.86:2111:04Waning Gibbous20Tue
21Wed5:547.06:596.412:092.712:390.06:2311:02Waning Gibbous21Wed
22Thu6:386.27:366.412:572.91:140.96:2411:01Third Quarter22Thu
23Fri7:265.58:176.31:503.01:521.96:2610:59Third Quarter23Fri
24Sat8:264.99:046.42:523.02:352.86:2810:57Third Quarter24Sat
25Sun9:474.59:576.54:082.83:283.56:2910:56Third Quarter25Sun
26Mon11:204.410:536.85:242.34:304.16:3110:54Waning Crescent26Mon
27Tue12:384.76:261.65:344.36:3310:52Waning Crescent27Tue
28Wed1:345.17:160.96:324.26:3510:50Waning Crescent28Wed
29Thu12:367.62:185.57:590.17:243.96:3710:48Waning Crescent29Thu
30Fri1:238.12:555.98:38-0.78:123.56:3810:46New Moon30Fri
31Sat2:078.43:306.39:14-1.48:563.06:4010:44New 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 12:05 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 neap phase. Tonight's moon is 49% 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 minimum.

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 First Quarter (49% illuminated). This places Chiachi Island (East Side), AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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