55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

53°
H 54°
L 50°
ESE
6mph
High tide
5:00 pm

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

TIDE TIMES for Monday, August 31, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 11:33 pm (0.1 ft)
Next high tide : in 1h 26m at 5:00 pm (8.1 ft)
Sunset today : 9:32 pm
Sunrise tomorrow : 7:40 am
Moon phase : Waning Gibbous (85% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Feb 1920

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:228.611:586.44:153.85:40-1.08:315:08Waxing Gibbous1Sun
2Mon11:229.05:223.16:28-1.78:305:10Full Moon2Mon
3Tue12:427.012:149.26:192.37:10-2.18:285:12Full Moon3Tue
4Wed1:227.51:029.27:091.57:49-2.28:265:14Full Moon4Wed
5Thu2:007.91:478.97:551.08:26-1.88:245:16Full Moon5Thu
6Fri2:368.12:308.48:390.89:01-1.28:225:19Waning Gibbous6Fri
7Sat3:118.13:117.89:220.89:35-0.38:205:21Waning Gibbous7Sat
8Sun3:468.03:537.010:051.110:080.78:185:23Waning Gibbous8Sun
9Mon4:217.74:366.110:501.610:431.88:165:25Third Quarter9Mon
10Tue4:587.45:255.411:412.111:192.98:135:27Third Quarter10Tue
11Wed5:407.16:294.712:432.68:115:29Third Quarter11Wed
12Thu6:316.88:114.412:033.92:092.88:095:32Third Quarter12Thu
13Fri7:386.610:024.61:044.73:402.58:075:34Third Quarter13Fri
14Sat8:536.711:055.02:295.14:431.98:055:36Waning Crescent14Sat
15Sun9:577.011:455.53:534.95:281.28:025:38Waning Crescent15Sun
16Mon10:507.44:554.36:040.58:005:40Waning Crescent16Mon
17Tue12:166.011:34 AM7.75:433.66:35-0.17:585:43Waning Crescent17Tue
18Wed12:446.512:148.06:232.87:04-0.67:555:45New Moon18Wed
19Thu1:116.912:528.27:012.07:33-0.97:535:47New Moon19Thu
20Fri1:397.41:298.27:371.38:03-0.97:515:49New Moon20Fri
21Sat2:087.72:078.08:150.78:34-0.77:485:51Waxing Crescent21Sat
22Sun2:388.02:467.68:550.39:07-0.27:465:53Waxing Crescent22Sun
23Mon3:118.23:297.19:370.29:420.67:445:55Waxing Crescent23Mon
24Tue3:488.34:166.510:240.310:211.57:415:58Waxing Crescent24Tue
25Wed4:308.25:125.711:190.711:062.57:396:00First Quarter25Wed
26Thu5:208.06:255.112:241.17:366:02First Quarter26Thu
27Fri6:227.78:054.912:023.41:461.27:346:04First Quarter27Fri
28Sat7:417.59:435.21:194.13:160.97:316:06Waxing Gibbous28Sat
29Sun9:047.610:505.92:534.14:280.27:296:08Waxing Gibbous29Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9459085)

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

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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 85% 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 Gibbous (85% 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