55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

47°
H 53°
L 42°
N
8mph
High tide
10:21 am

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

TIDE TIMES for Saturday, September 19, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 2:17 pm (5.8 ft)
Next high tide : in 5h 23m at 10:21 am (4.5 ft)
Sunset today : 8:43 pm
Sunrise tomorrow : 8:16 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Mar 1881

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:408.42:518.48:55-0.69:12-1.27:266:12New Moon1Tue
2Wed3:168.73:347.99:38-0.89:47-0.47:236:14Waxing Crescent2Wed
3Thu3:508.74:177.310:21-0.710:210.67:216:16Waxing Crescent3Thu
4Fri4:268.55:016.511:04-0.210:561.77:186:18Waxing Crescent4Fri
5Sat5:028.15:485.711:500.611:322.87:166:20First Quarter5Sat
6Sun5:417.66:435.012:411.47:136:22First Quarter6Sun
7Mon6:277.18:044.512:123.81:482.27:106:24First Quarter7Mon
8Tue7:266.610:094.51:044.73:242.57:086:26First Quarter8Tue
9Wed8:476.311:274.82:265.24:502.27:056:28Waxing Gibbous9Wed
10Thu10:116.44:175.15:461.77:036:30Waxing Gibbous10Thu
11Fri12:095.311:15 AM6.65:314.46:261.17:006:33Waxing Gibbous11Fri
12Sat12:405.812:056.96:203.56:590.76:576:35Waxing Gibbous12Sat
13Sun1:066.312:477.26:592.57:270.36:556:37Waxing Gibbous13Sun
14Mon1:306.81:257.47:341.67:530.16:526:39Full Moon14Mon
15Tue1:557.32:017.58:080.88:210.16:506:41Full Moon15Tue
16Wed2:217.72:377.48:410.18:490.36:476:43Full Moon16Wed
17Thu2:488.03:137.29:16-0.49:190.76:446:45Waning Gibbous17Thu
18Fri3:178.33:526.99:54-0.69:511.26:426:47Waning Gibbous18Fri
19Sat3:498.44:336.410:34-0.610:251.96:396:49Waning Gibbous19Sat
20Sun4:268.45:215.911:20-0.311:042.76:376:51Waning Gibbous20Sun
21Mon5:098.16:195.312:140.26:346:53Third Quarter21Mon
22Tue6:017.87:375.01:190.76:316:55Third Quarter22Tue
23Wed7:087.39:145.012:564.12:390.96:296:57Third Quarter23Wed
24Thu8:347.010:355.52:244.44:040.76:266:59Waning Crescent24Thu
25Fri10:027.011:316.24:033.85:110.36:237:01Waning Crescent25Fri
26Sat11:167.35:222.76:04-0.26:217:03Waning Crescent26Sat
27Sun12:157.012:177.56:231.36:49-0.46:187:05Waning Crescent27Sun
28Mon12:557.71:107.77:140.07:30-0.46:157:07New Moon28Mon
29Tue1:318.21:577.77:58-0.98:07-0.26:137:09New Moon29Tue
30Wed2:068.62:417.58:40-1.58:420.36:107:11New Moon30Wed
31Thu2:418.73:237.29:20-1.69:170.96:087:13Waxing Crescent31Thu
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 neap phase. Tonight's moon is 59% 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 minimum.

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 (59% illuminated). This places Chiachi Island (East Side), AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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