55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

50°
H 53°
L 49°
W
7mph
High tide
6:18 am

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

TIDE TIMES for Wednesday, September 16, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 11:54 am (3.4 ft)
Next high tide : in 2h 12m at 6:18 am (5.8 ft)
Sunset today : 8:51 pm
Sunrise tomorrow : 8:11 am
Moon phase : First Quarter (31% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jan 1885

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:227.41:5210.07:562.38:52-2.99:074:15Full Moon1Thu
2Fri3:077.72:409.88:462.09:35-2.89:064:16Waning Gibbous2Fri
3Sat3:527.83:289.49:361.910:18-2.39:064:17Waning Gibbous3Sat
4Sun4:377.94:168.710:272.011:01-1.59:054:19Waning Gibbous4Sun
5Mon5:227.85:067.811:202.211:44-0.49:054:20Waning Gibbous5Mon
6Tue6:087.65:586.812:172.69:044:21Third Quarter6Tue
7Wed6:567.46:595.912:280.81:232.99:034:23Third Quarter7Wed
8Thu7:497.28:155.21:151.92:432.99:034:25Third Quarter8Thu
9Fri8:477.19:504.92:103.04:072.69:024:26Third Quarter9Fri
10Sat9:467.211:155.03:153.85:152.09:014:28Waning Crescent10Sat
11Sun10:417.44:234.26:081.49:004:30Waning Crescent11Sun
12Mon12:185.411:29 AM7.65:234.36:520.78:594:31Waning Crescent12Mon
13Tue1:045.712:127.96:144.27:280.28:584:33Waning Crescent13Tue
14Wed1:416.112:518.26:583.98:01-0.38:574:35New Moon14Wed
15Thu2:136.41:288.47:373.68:30-0.68:564:37New Moon15Thu
16Fri2:436.62:038.48:133.38:59-0.88:554:39New Moon16Fri
17Sat3:136.82:378.48:483.09:28-0.98:534:40New Moon17Sat
18Sun3:427.03:118.29:242.89:58-0.88:524:42Waxing Crescent18Sun
19Mon4:127.13:467.810:012.610:30-0.58:514:44Waxing Crescent19Mon
20Tue4:447.24:247.410:422.511:040.08:494:46Waxing Crescent20Tue
21Wed5:187.25:076.811:272.511:400.78:484:48Waxing Crescent21Wed
22Thu5:577.35:586.112:192.58:464:50First Quarter22Thu
23Fri6:427.47:025.512:221.61:222.58:454:52First Quarter23Fri
24Sat7:377.58:275.11:122.52:382.28:434:54First Quarter24Sat
25Sun8:427.710:075.12:153.34:011.58:424:57Waxing Gibbous25Sun
26Mon9:528.111:305.63:313.75:150.58:404:59Waxing Gibbous26Mon
27Tue10:588.54:473.76:16-0.68:385:01Waxing Gibbous27Tue
28Wed12:336.211:58 AM9.05:553.27:08-1.58:375:03Waxing Gibbous28Wed
29Thu1:236.812:539.46:552.57:55-2.28:355:05Full Moon29Thu
30Fri2:087.41:449.57:491.88:37-2.58:335:07Full Moon30Fri
31Sat2:497.82:319.48:381.39:17-2.48:315:09Full Moon31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9459085)

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

Collapse All
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 31% 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 First Quarter (31% 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