55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

49°
H -°
L 46°
W
8mph
High tide
3:53 am

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

TIDE TIMES for Monday, September 28, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 9:54 am (1.1 ft)
Next high tide : in 4h 20m at 3:53 am (7.5 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 8:32 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

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

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:117.210:475.73:432.55:052.48:414:09Third Quarter1Sat
2Sun10:587.511:505.84:412.95:571.58:434:08Waning Crescent2Sun
3Mon11:387.85:303.26:400.88:454:08Waning Crescent3Mon
4Tue12:416.112:138.16:133.37:180.28:464:07Waning Crescent4Tue
5Wed1:236.312:478.36:523.47:51-0.28:484:06Waning Crescent5Wed
6Thu2:006.51:208.57:273.58:22-0.58:494:05New Moon6Thu
7Fri2:346.61:528.58:023.58:53-0.68:514:05New Moon7Fri
8Sat3:086.72:258.58:363.69:24-0.68:524:04New Moon8Sat
9Sun3:416.72:588.39:113.79:56-0.58:534:04New Moon9Sun
10Mon4:156.63:328.19:473.810:30-0.38:554:04Waxing Crescent10Mon
11Tue4:516.64:097.710:274.011:070.18:564:03Waxing Crescent11Tue
12Wed5:306.54:507.211:124.111:460.58:574:03Waxing Crescent12Wed
13Thu6:126.55:396.612:044.18:584:03Waxing Crescent13Thu
14Fri7:006.66:396.012:311.11:084.08:594:03First Quarter14Fri
15Sat7:546.87:565.61:211.72:223.59:004:03First Quarter15Sat
16Sun8:527.39:255.52:202.33:412.69:014:03First Quarter16Sun
17Mon9:497.810:475.73:242.74:511.49:024:03First Quarter17Mon
18Tue10:448.511:566.24:282.95:510.19:034:03Waxing Gibbous18Tue
19Wed11:369.15:282.96:44-1.29:044:03Waxing Gibbous19Wed
20Thu12:556.712:279.76:252.77:33-2.19:044:04Waxing Gibbous20Thu
21Fri1:477.11:1710.07:192.58:20-2.79:054:04Full Moon21Fri
22Sat2:357.52:0510.18:092.39:05-2.99:054:04Full Moon22Sat
23Sun3:217.72:539.88:592.29:49-2.79:064:05Full Moon23Sun
24Mon4:077.73:409.39:492.210:33-2.09:064:05Waning Gibbous24Mon
25Tue4:537.64:298.510:402.411:17-1.29:074:06Waning Gibbous25Tue
26Wed5:407.55:197.611:352.89:074:07Waning Gibbous26Wed
27Thu6:287.36:146.612:01-0.112:353.19:074:08Third Quarter27Thu
28Fri7:197.17:195.812:471.11:473.39:074:09Third Quarter28Fri
29Sat8:157.08:415.21:372.23:123.19:074:09Third Quarter29Sat
30Sun9:137.110:135.02:363.14:302.69:074:10Third Quarter30Sun
31Mon10:087.211:285.23:413.85:321.99:074:12Waning Crescent31Mon
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 98% 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 Full Moon (98% 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