55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

44°
H 46°
L 45°
SSE
14mph
High tide
1:05 pm

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

TIDE TIMES for Friday, October 23, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 7:37 pm (1.0 ft)
Next high tide : in 4h 07m at 1:05 pm (7.5 ft)
Sunset today : 7:16 pm
Sunrise tomorrow : 9:25 am
Moon phase : Waxing Gibbous (93% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Aug 1820

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:255.27:347.71:351.01:082.54:398:45Third Quarter1Tue
2Wed8:584.68:357.52:551.12:053.74:418:43Third Quarter2Wed
3Thu10:464.69:447.54:210.93:204.64:438:41Third Quarter3Thu
4Fri12:085.05:340.54:434.94:458:39Waning Crescent4Fri
5Sat1:025.46:330.15:554.74:478:37Waning Crescent5Sat
6Sun1:435.87:19-0.46:504.24:498:35Waning Crescent6Sun
7Mon12:418.02:166.17:58-0.77:343.64:518:33New Moon7Mon
8Tue1:238.12:446.38:31-0.98:123.14:538:31New Moon8Tue
9Wed2:018.13:106.58:59-0.98:472.64:558:29New Moon9Wed
10Thu2:357.93:356.69:25-0.89:212.24:578:26New Moon10Thu
11Fri3:097.63:596.79:50-0.59:551.94:588:24New Moon11Fri
12Sat3:427.24:236.910:150.010:311.85:008:22Waxing Crescent12Sat
13Sun4:176.74:496.910:410.711:091.85:028:20Waxing Crescent13Sun
14Mon4:536.15:177.011:081.611:511.95:048:17Waxing Crescent14Mon
15Tue5:355.55:507.011:372.55:068:15Waxing Crescent15Tue
16Wed6:264.96:317.012:412.112:103.45:088:13First Quarter16Wed
17Thu7:384.47:257.01:452.312:534.35:108:10First Quarter17Thu
18Fri9:334.28:377.13:082.22:035.15:128:08First Quarter18Fri
19Sat11:204.69:557.54:361.53:375.35:148:06First Quarter19Sat
20Sun12:175.25:440.55:004.85:168:03Waxing Gibbous20Sun
21Mon12:585.86:36-0.56:073.85:188:01Waxing Gibbous21Mon
22Tue12:068.61:346.47:20-1.57:032.65:207:58Waxing Gibbous22Tue
23Wed1:009.02:097.18:00-2.17:541.45:227:56Full Moon23Wed
24Thu1:509.12:447.78:38-2.38:420.35:247:53Full Moon24Thu
25Fri2:388.93:198.29:14-2.09:29-0.45:267:51Full Moon25Fri
26Sat3:258.53:568.59:51-1.310:18-0.75:287:48Waning Gibbous26Sat
27Sun4:147.74:348.610:28-0.311:08-0.65:307:46Waning Gibbous27Sun
28Mon5:066.95:148.511:061.05:327:43Waning Gibbous28Mon
29Tue6:025.95:588.112:02-0.111:46 AM2.45:347:41Third Quarter29Tue
30Wed7:125.26:517.61:040.712:333.85:367:38Third Quarter30Wed
31Thu8:554.77:597.22:241.31:344.95:387:36Third Quarter31Thu
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 93% 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 (93% 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