55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

46°
H 51°
L 42°
WNW
1mph
Low tide
9:54 am

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

TIDE TIMES for Monday, September 28, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 37m at 9:54 am (1.1 ft)
Next high tide : 3:50 pm (8.8 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 8:34 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Feb 1866

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:247.53:058.59:161.79:45-1.28:325:08Full Moon1Thu
2Fri3:577.63:428.09:541.710:16-0.68:305:11Waning Gibbous2Fri
3Sat4:287.54:197.410:331.810:470.28:285:13Waning Gibbous3Sat
4Sun4:597.44:576.711:122.011:191.18:265:15Waning Gibbous4Sun
5Mon5:327.25:376.011:562.411:522.08:245:17Waning Gibbous5Mon
6Tue6:087.06:255.312:452.88:225:19Third Quarter6Tue
7Wed6:506.87:284.712:293.01:473.08:205:21Third Quarter7Wed
8Thu7:436.79:044.41:153.83:093.08:185:24Third Quarter8Thu
9Fri8:496.710:504.62:174.54:372.68:165:26Third Quarter9Fri
10Sat9:596.911:565.13:374.85:391.88:145:28Waning Crescent10Sat
11Sun11:007.34:524.66:250.98:125:30Waning Crescent11Sun
12Mon12:405.611:53 AM7.85:544.07:030.08:095:32Waning Crescent12Mon
13Tue1:166.212:398.26:443.37:39-0.88:075:35Waning Crescent13Tue
14Wed1:496.81:238.67:292.48:13-1.48:055:37New Moon14Wed
15Thu2:217.32:058.78:121.58:47-1.78:035:39New Moon15Thu
16Fri2:557.72:478.78:540.89:23-1.68:005:41New Moon16Fri
17Sat3:298.13:308.49:370.39:59-1.37:585:43New Moon17Sat
18Sun4:068.34:157.910:230.110:37-0.57:565:45Waxing Crescent18Sun
19Mon4:458.45:047.111:110.111:180.47:535:48Waxing Crescent19Mon
20Tue5:288.35:596.312:060.57:515:50Waxing Crescent20Tue
21Wed6:178.17:075.612:031.61:090.97:495:52First Quarter21Wed
22Thu7:167.88:385.112:562.72:281.37:465:54First Quarter22Thu
23Fri8:287.510:215.22:053.73:591.27:445:56First Quarter23Fri
24Sat9:487.511:385.73:334.15:160.67:415:58First Quarter24Sat
25Sun11:017.75:003.86:150.07:396:00Waxing Gibbous25Sun
26Mon12:336.212:027.96:083.27:03-0.57:376:03Waxing Gibbous26Mon
27Tue1:156.712:528.17:012.47:42-0.87:346:05Waxing Gibbous27Tue
28Wed1:517.11:368.27:451.78:16-0.87:326:07Full Moon28Wed
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 94% 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 (94% 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