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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 3:57 pm (2.6 ft)
Next high tide : in 3h 04m at 10:15 am (4.7 ft)
Sunset today : 11:26 pm
Sunrise tomorrow : 5:51 am
Moon phase : First Quarter (69% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Mar 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:587.41:429.07:481.38:27-2.18:267:11Full Moon1Thu
2Fri2:357.92:288.98:340.59:05-1.98:237:13Full Moon2Fri
3Sat3:118.13:128.59:180.19:41-1.48:217:15Waning Gibbous3Sat
4Sun3:478.23:558.010:01-0.110:15-0.58:187:17Waning Gibbous4Sun
5Mon4:218.14:387.210:440.110:500.58:167:19Waning Gibbous5Mon
6Tue4:567.85:226.411:270.611:251.78:137:21Waning Gibbous6Tue
7Wed5:327.56:105.612:141.28:107:23Third Quarter7Wed
8Thu6:117.17:105.012:022.81:091.98:087:25Third Quarter8Thu
9Fri6:596.78:414.612:453.92:222.48:057:27Third Quarter9Fri
10Sat8:026.310:364.61:434.73:582.48:037:29Third Quarter10Sat
11Sun10:236.34:105.26:132.09:008:32Waning Crescent11Sun
12Mon12:455.011:37 AM6.55:454.97:061.48:578:34Waning Crescent12Mon
13Tue1:275.512:356.86:494.37:450.88:558:36Waning Crescent13Tue
14Wed1:586.01:227.27:353.58:180.28:528:38Waning Crescent14Wed
15Thu2:266.42:027.58:132.68:47-0.28:508:40New Moon15Thu
16Fri2:526.92:407.78:491.89:16-0.58:478:42New Moon16Fri
17Sat3:197.33:167.89:231.09:44-0.58:448:44New Moon17Sat
18Sun3:467.63:537.79:590.310:15-0.48:428:46New Moon18Sun
19Mon4:157.94:317.510:35-0.110:460.18:398:48Waxing Crescent19Mon
20Tue4:468.15:117.111:15-0.411:200.88:378:50Waxing Crescent20Tue
21Wed5:208.15:576.511:59-0.311:571.68:348:52Waxing Crescent21Wed
22Thu5:598.16:495.912:480.08:318:54Waxing Crescent22Thu
23Fri6:457.87:545.312:402.51:460.48:298:56First Quarter23Fri
24Sat7:417.59:245.01:333.52:580.88:268:58First Quarter24Sat
25Sun8:557.211:045.22:444.24:250.88:239:00First Quarter25Sun
26Mon10:227.14:174.35:460.48:219:02Waxing Gibbous26Mon
27Tue12:175.811:42 AM7.35:483.76:49-0.28:189:04Waxing Gibbous27Tue
28Wed1:096.512:497.76:582.67:39-0.78:169:06Waxing Gibbous28Wed
29Thu1:527.11:458.07:531.48:22-1.08:139:08Full Moon29Thu
30Fri2:297.72:348.18:400.39:01-1.08:109:10Full Moon30Fri
31Sat3:048.13:198.09:23-0.59:37-0.78:089:12Full 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 1:06 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 transitional phase. Tonight's moon is 69% 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 First Quarter (69% 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