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

TIDE TIMES for Thursday, August 6, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 3h 14m at 2:05 pm (3.4 ft)
Next high tide : 8:32 pm (7.7 ft)
Sunset today : 10:32 pm
Sunrise tomorrow : 6:51 am
Moon phase : Third Quarter (42% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Apr 1961

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:157.61:327.47:360.17:450.36:067:14Full Moon1Sat
2Sun1:437.92:097.38:11-0.48:160.66:037:16Full Moon2Sun
3Mon2:138.12:477.08:47-0.78:491.16:007:18Waning Gibbous3Mon
4Tue2:458.23:296.69:27-0.79:251.75:587:20Waning Gibbous4Tue
5Wed3:228.14:166.210:11-0.510:052.45:557:22Waning Gibbous5Wed
6Thu4:037.95:125.711:02-0.110:533.25:537:24Third Quarter6Thu
7Fri4:547.56:225.312:030.45:507:26Third Quarter7Fri
8Sat5:577.17:515.31:170.75:477:28Third Quarter8Sat
9Sun7:186.89:135.71:174.12:380.75:457:30Third Quarter9Sun
10Mon8:466.810:146.32:513.73:500.35:427:32Waning Crescent10Mon
11Tue10:027.111:027.04:102.64:48-0.15:407:34Waning Crescent11Tue
12Wed11:057.411:457.75:121.35:37-0.45:377:36Waning Crescent12Wed
13Thu12:007.66:040.16:20-0.55:357:38New Moon13Thu
14Fri12:238.212:487.76:50-0.97:00-0.35:327:40New Moon14Fri
15Sat1:008.51:347.67:33-1.57:380.15:307:42New Moon15Sat
16Sun1:368.72:177.48:13-1.78:140.75:277:44New Moon16Sun
17Mon2:118.63:007.08:53-1.68:501.45:257:46Waxing Crescent17Mon
18Tue2:468.33:426.59:32-1.19:262.35:227:48Waxing Crescent18Tue
19Wed3:217.94:276.010:13-0.410:053.15:207:50Waxing Crescent19Wed
20Thu3:597.45:175.510:580.410:483.95:177:52First Quarter20Thu
21Fri4:426.86:185.111:481.211:414.55:157:54First Quarter21Fri
22Sat5:346.27:385.012:501.85:127:56First Quarter22Sat
23Sun6:425.78:575.112:554.82:062.15:107:58First Quarter23Sun
24Mon8:075.69:505.52:344.63:172.05:088:00First Quarter24Mon
25Tue9:225.710:296.03:523.84:091.75:058:02Waxing Gibbous25Tue
26Wed10:225.911:026.54:442.94:511.55:038:04Waxing Gibbous26Wed
27Thu11:126.211:337.05:261.85:281.25:018:06Waxing Gibbous27Thu
28Fri11:566.56:030.86:021.14:588:08Waxing Gibbous28Fri
29Sat12:047.612:376.86:39-0.16:371.04:568:10Full Moon29Sat
30Sun12:358.01:176.97:15-0.97:121.14:548:12Full Moon30Sun
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 5:18 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 neap phase. Tonight's moon is 42% 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 Third Quarter (42% 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