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

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 5h 11m at 12:04 pm (0.3 ft)
Next high tide : 6:16 pm (7.3 ft)
Sunset today : 10:39 pm
Sunrise tomorrow : 6:46 am
Moon phase : Waning Gibbous (74% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Nov 1965

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:005.36:266.012:482.312:486.07:434:56First Quarter1Mon
2Tue9:095.67:595.82:092.52:435.57:454:54First Quarter2Tue
3Wed9:526.09:175.93:162.43:544.57:474:52Waxing Gibbous3Wed
4Thu10:236.510:166.24:032.24:413.47:494:50Waxing Gibbous4Thu
5Fri10:517.011:046.54:412.05:192.27:524:48Waxing Gibbous5Fri
6Sat11:197.611:486.75:151.95:551.07:544:46Waxing Gibbous6Sat
7Sun11:488.25:481.96:300.07:564:44Full Moon7Sun
8Mon12:306.912:188.76:222.07:05-0.87:584:42Full Moon8Mon
9Tue1:107.112:499.06:562.37:42-1.48:004:40Full Moon9Tue
10Wed1:527.11:249.37:312.78:22-1.78:024:38Full Moon10Wed
11Thu2:356.92:019.38:093.29:05-1.68:044:36Waning Gibbous11Thu
12Fri3:226.62:429.18:493.79:52-1.28:064:34Waning Gibbous12Fri
13Sat4:156.33:298.69:364.210:45-0.68:084:32Waning Gibbous13Sat
14Sun5:166.14:258.010:334.711:450.18:104:31Third Quarter14Sun
15Mon6:276.05:347.311:455.08:124:29Third Quarter15Mon
16Tue7:436.27:006.712:540.71:204.88:144:27Third Quarter16Tue
17Wed8:486.78:316.42:071.12:573.88:164:26Waning Crescent17Wed
18Thu9:407.39:496.53:121.24:082.48:184:24Waning Crescent18Thu
19Fri10:237.910:546.64:071.45:041.08:204:22Waning Crescent19Fri
20Sat11:028.411:506.84:541.65:51-0.28:224:21Waning Crescent20Sat
21Sun11:398.85:372.06:34-1.08:244:20New Moon21Sun
22Mon12:396.912:149.16:172.47:13-1.58:264:18New Moon22Mon
23Tue1:237.012:489.16:542.97:50-1.68:284:17New Moon23Tue
24Wed2:056.91:219.07:313.48:26-1.38:304:15New Moon24Wed
25Thu2:456.71:558.88:073.99:03-0.98:324:14Waxing Crescent25Thu
26Fri3:266.52:308.48:434.39:40-0.38:344:13Waxing Crescent26Fri
27Sat4:086.23:077.99:214.810:210.48:364:12Waxing Crescent27Sat
28Sun4:545.93:487.310:055.211:051.18:374:11Waxing Crescent28Sun
29Mon5:455.74:366.610:575.411:541.78:394:10First Quarter29Mon
30Tue6:435.75:356.012:055.58:414:09First Quarter30Tue
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 3:10 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 74% 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 Waning Gibbous (74% 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