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

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 1h 30m at 8:30 am (-1.8 ft)
Next high tide : 2:46 pm (6.5 ft)
Sunset today : 10:21 pm
Sunrise tomorrow : 7:01 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Nov 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:016.510:075.93:412.44:303.07:434:56Waning Crescent1Sun
2Mon10:327.010:596.14:222.55:122.07:454:54Waning Crescent2Mon
3Tue11:007.411:436.34:582.65:481.17:474:52Waning Crescent3Tue
4Wed11:277.85:302.86:200.47:494:50New Moon4Wed
5Thu12:226.411:55 AM8.26:013.06:52-0.27:514:48New Moon5Thu
6Fri12:596.612:248.56:323.37:23-0.57:534:46New Moon6Fri
7Sat1:346.612:548.67:043.57:56-0.77:564:44New Moon7Sat
8Sun2:106.51:268.77:373.88:31-0.77:584:42Waxing Crescent8Sun
9Mon2:486.42:008.68:114.19:09-0.58:004:40Waxing Crescent9Mon
10Tue3:296.22:378.48:484.49:51-0.28:024:38Waxing Crescent10Tue
11Wed4:155.93:208.09:304.710:380.28:044:36Waxing Crescent11Wed
12Thu5:075.84:127.510:244.911:300.68:064:34First Quarter12Thu
13Fri6:065.85:166.911:324.98:084:32First Quarter13Fri
14Sat7:096.16:356.312:281.012:574.58:104:31First Quarter14Sat
15Sun8:076.68:056.01:311.42:263.48:124:29First Quarter15Sun
16Mon8:597.39:276.12:331.73:402.08:144:27Waxing Gibbous16Mon
17Tue9:468.110:386.43:302.04:390.48:164:26Waxing Gibbous17Tue
18Wed10:308.911:396.74:232.35:32-0.98:184:24Waxing Gibbous18Wed
19Thu11:159.45:132.56:20-1.98:204:23Full Moon19Thu
20Fri12:336.911:59 AM9.86:012.87:06-2.58:224:21Full Moon20Fri
21Sat1:237.112:439.96:483.07:51-2.58:244:20Full Moon21Sat
22Sun2:107.11:269.87:333.38:35-2.28:264:18Waning Gibbous22Sun
23Mon2:576.92:109.48:183.69:19-1.68:284:17Waning Gibbous23Mon
24Tue3:456.72:558.79:044.010:04-0.88:304:16Waning Gibbous24Tue
25Wed4:336.53:417.99:544.310:500.18:324:14Waning Gibbous25Wed
26Thu5:236.34:327.110:504.611:361.08:344:13Third Quarter26Thu
27Fri6:166.15:296.211:564.88:354:12Third Quarter27Fri
28Sat7:116.26:395.512:261.81:214.58:374:11Third Quarter28Sat
29Sun8:036.48:045.11:192.62:483.98:394:10Third Quarter29Sun
30Mon8:496.79:275.12:153.13:523.08:414:09Waning Crescent30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9459085)

Common Questions About Chiachi Island (East Side), AK Tides

Show All
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 11:38 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 spring phase. Tonight's moon is 1% 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 maximum.

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 New Moon (1% illuminated). This places Chiachi Island (East Side), AK in a spring tide cycle, so tidal ranges are near their weekly maximum 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