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

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 7:42 am (-1.1 ft)
Next high tide : in 1h 15m at 12:11 am (8.5 ft)
Sunset today : 10:26 pm
Sunrise tomorrow : 6:57 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Mar 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:428.24:166.310:210.310:101.97:266:11Waning Gibbous1Thu
2Fri4:187.85:035.511:071.110:463.07:236:13Third Quarter2Fri
3Sat4:587.36:014.912:021.97:216:15Third Quarter3Sat
4Sun5:466.97:334.41:162.47:186:17Third Quarter4Sun
5Mon6:516.59:344.512:254.82:562.57:166:19Third Quarter5Mon
6Tue8:156.310:404.91:555.24:112.17:136:21Waning Crescent6Tue
7Wed9:326.511:195.43:374.95:011.57:106:23Waning Crescent7Wed
8Thu10:316.811:495.94:434.25:390.97:086:25Waning Crescent8Thu
9Fri11:187.15:303.36:100.57:056:28Waning Crescent9Fri
10Sat12:156.411:58 AM7.46:092.36:380.17:036:30New Moon10Sat
11Sun12:406.912:367.56:441.47:05-0.17:006:32New Moon11Sun
12Mon1:067.41:127.67:180.67:33-0.16:576:34New Moon12Mon
13Tue1:337.81:497.57:530.08:020.26:556:36New Moon13Tue
14Wed2:028.22:267.38:30-0.48:340.66:526:38Waxing Crescent14Wed
15Thu2:338.43:066.99:09-0.69:071.26:506:40Waxing Crescent15Thu
16Fri3:078.43:506.49:52-0.59:432.06:476:42Waxing Crescent16Fri
17Sat3:468.34:425.810:41-0.110:262.86:446:44Waxing Crescent17Sat
18Sun4:338.05:465.211:380.411:183.66:426:46First Quarter18Sun
19Mon5:307.67:134.912:490.96:396:48First Quarter19Mon
20Tue6:447.28:515.212:304.22:150.96:376:50First Quarter20Tue
21Wed8:127.110:025.72:054.23:350.66:346:52Waxing Gibbous21Wed
22Thu9:357.210:546.53:393.54:370.16:316:54Waxing Gibbous22Thu
23Fri10:427.511:367.24:502.25:26-0.36:296:56Waxing Gibbous23Fri
24Sat11:397.75:461.06:09-0.56:266:58Full Moon24Sat
25Sun12:147.812:297.86:33-0.16:48-0.56:237:00Full Moon25Sun
26Mon12:498.31:147.87:16-0.97:24-0.26:217:02Full Moon26Mon
27Tue1:238.51:567.57:56-1.37:580.46:187:04Full Moon27Tue
28Wed1:578.62:377.18:35-1.38:311.06:167:06Waning Gibbous28Wed
29Thu2:298.53:176.79:13-1.09:041.86:137:08Waning Gibbous29Thu
30Fri3:028.23:576.19:52-0.39:392.76:107:10Waning Gibbous30Fri
31Sat3:377.74:415.510:330.410:153.46:087:12Waning Gibbous31Sat
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 3:56 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 12% 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 Waning Crescent (12% 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