55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

49°
H -°
L 47°
SSW
10mph
High tide
1:53 am

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

TIDE TIMES for Friday, September 25, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 8:24 am (0.3 ft)
Next high tide : in 2h 31m at 1:53 am (7.5 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 8:26 am
Moon phase : Waxing Gibbous (96% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Apr 1872

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:127.39:455.01:014.52:550.76:057:15Third Quarter1Mon
2Tue8:407.011:035.52:344.94:230.56:027:17Waning Crescent2Tue
3Wed10:117.111:556.24:184.45:300.05:597:19Waning Crescent3Wed
4Thu11:257.35:373.26:21-0.55:577:21Waning Crescent4Thu
5Fri12:366.812:247.66:351.97:04-0.85:547:24Waning Crescent5Fri
6Sat1:127.41:157.77:230.67:42-0.75:527:26New Moon6Sat
7Sun1:457.92:017.78:05-0.48:16-0.45:497:28New Moon7Sun
8Mon2:168.22:437.58:45-1.08:490.15:467:30New Moon8Mon
9Tue2:478.43:237.19:22-1.39:200.95:447:32Waxing Crescent9Tue
10Wed3:168.34:036.79:58-1.29:511.75:417:34Waxing Crescent10Wed
11Thu3:468.14:436.110:35-0.710:222.75:397:36Waxing Crescent11Thu
12Fri4:177.85:265.611:14-0.110:553.55:367:38Waxing Crescent12Fri
13Sat4:517.46:155.111:580.711:324.45:347:40First Quarter13Sat
14Sun5:316.97:224.712:501.45:317:42First Quarter14Sun
15Mon6:226.49:074.512:205.01:582.05:297:44First Quarter15Mon
16Tue7:325.910:354.81:335.53:272.15:267:46First Quarter16Tue
17Wed9:035.811:205.33:235.34:391.85:247:48First Quarter17Wed
18Thu10:225.911:515.84:524.55:281.35:217:50Waxing Gibbous18Thu
19Fri11:226.25:463.46:060.95:197:52Waxing Gibbous19Fri
20Sat12:196.312:126.56:282.26:400.65:167:54Waxing Gibbous20Sat
21Sun12:466.912:576.87:060.97:120.55:147:56Full Moon21Sun
22Mon1:147.61:407.07:43-0.27:450.55:117:58Full Moon22Mon
23Tue1:448.12:227.18:21-1.28:190.85:098:00Full Moon23Tue
24Wed2:158.63:057.09:00-1.98:541.35:078:02Full Moon24Wed
25Thu2:498.83:506.79:41-2.29:321.95:048:04Waning Gibbous25Thu
26Fri3:268.94:396.310:26-2.110:122.65:028:06Waning Gibbous26Fri
27Sat4:088.75:345.911:15-1.610:583.35:008:08Waning Gibbous27Sat
28Sun4:568.36:395.512:11-1.04:578:10Third Quarter28Sun
29Mon5:537.77:585.31:17-0.34:558:12Third Quarter29Mon
30Tue7:047.09:225.51:074.52:340.24:538:14Third Quarter30Tue
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 96% 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 Waxing Gibbous (96% 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