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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 4h 10m at 1:31 pm (-0.6 ft)
Next high tide : 8:00 pm (6.7 ft)
Sunset today : 11:25 pm
Sunrise tomorrow : 5:50 am
Moon phase : First Quarter (39% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Nov 2022

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:335.88:337.02:410.72:415.39:436:56First Quarter1Tue
2Wed10:496.210:086.74:021.04:294.79:466:53First Quarter2Wed
3Thu11:446.711:316.75:141.05:523.49:486:51Waxing Gibbous3Thu
4Fri12:277.46:101.06:511.99:506:49Waxing Gibbous4Fri
5Sat12:376.91:048.06:561.17:390.69:526:47Waxing Gibbous5Sat
6Sun1:337.012:388.46:361.37:22-0.48:545:45Full Moon6Sun
7Mon1:217.11:108.77:131.78:00-1.08:565:43Full Moon7Mon
8Tue2:057.11:418.97:472.28:35-1.38:585:41Full Moon8Tue
9Wed2:457.02:128.98:202.89:10-1.29:005:39Full Moon9Wed
10Thu3:246.82:428.88:533.49:44-0.99:025:37Waning Gibbous10Thu
11Fri4:036.53:148.59:264.010:21-0.39:045:36Waning Gibbous11Fri
12Sat4:446.23:488.110:004.611:000.49:065:34Waning Gibbous12Sat
13Sun5:295.84:257.610:385.111:431.19:095:32Waning Gibbous13Sun
14Mon6:215.55:107.011:235.69:115:30Third Quarter14Mon
15Tue7:255.36:056.412:341.712:235.99:135:29Third Quarter15Tue
16Wed8:385.47:175.91:332.11:485.89:155:27Third Quarter16Wed
17Thu9:375.78:445.62:382.33:285.29:175:25Third Quarter17Thu
18Fri10:186.210:035.73:392.44:384.09:195:24Waning Crescent18Fri
19Sat10:526.811:075.94:292.35:282.79:215:22Waning Crescent19Sat
20Sun11:257.55:122.36:111.39:235:21Waning Crescent20Sun
21Mon12:026.311:58 AM8.25:532.46:510.09:255:19Waning Crescent21Mon
22Tue12:526.612:338.96:342.57:31-1.19:265:18New Moon22Tue
23Wed1:396.81:109.47:142.78:13-1.99:285:16New Moon23Wed
24Thu2:257.01:499.87:553.08:56-2.49:305:15New Moon24Thu
25Fri3:127.02:319.98:383.39:41-2.49:325:14Waxing Crescent25Fri
26Sat4:016.93:169.79:223.610:29-2.09:345:13Waxing Crescent26Sat
27Sun4:536.74:059.210:114.011:20-1.49:365:12Waxing Crescent27Sun
28Mon5:506.55:008.411:084.39:375:11Waxing Crescent28Mon
29Tue6:526.46:037.612:16-0.612:164.69:395:10First Quarter29Tue
30Wed7:586.57:196.71:160.21:414.59:415:09First Quarter30Wed
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 4:45 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 39% 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 (39% 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