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

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 8:42 am (-2.4 ft)
Next high tide : in 1h 37m at 1:17 am (9.2 ft)
Sunset today : 11:15 pm
Sunrise tomorrow : 6:09 am
Moon phase : New Moon (4% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Sep 1991

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:505.07:387.71:501.11:193.97:419:31Third Quarter1Sun
2Mon9:264.78:527.53:061.42:284.67:439:29Third Quarter2Mon
3Tue11:154.910:197.64:371.24:024.87:449:26Waning Crescent3Tue
4Wed12:255.55:570.55:354.27:469:23Waning Crescent4Wed
5Thu1:146.26:56-0.36:483.07:489:21Waning Crescent5Thu
6Fri12:448.21:546.97:44-0.97:461.77:509:18New Moon6Fri
7Sat1:418.52:317.68:25-1.28:360.67:529:16New Moon7Sat
8Sun2:318.53:068.19:03-1.19:21-0.37:549:13New Moon8Sun
9Mon3:178.43:408.59:39-0.810:04-0.87:569:10New Moon9Mon
10Tue4:028.04:138.610:13-0.110:45-0.97:589:08Waxing Crescent10Tue
11Wed4:457.54:478.510:470.811:26-0.58:009:05Waxing Crescent11Wed
12Thu5:286.85:218.211:201.88:029:03Waxing Crescent12Thu
13Fri6:126.15:577.812:090.111:54 AM2.98:049:00Waxing Crescent13Fri
14Sat7:025.56:377.312:551.012:313.98:068:57First Quarter14Sat
15Sun8:064.97:286.81:511.91:164.88:088:55First Quarter15Sun
16Mon9:504.68:376.43:062.52:205.58:108:52First Quarter16Mon
17Tue11:354.810:076.34:462.64:025.68:128:49First Quarter17Tue
18Wed12:285.25:582.25:405.08:138:47Waxing Gibbous18Wed
19Thu1:025.76:451.76:384.18:158:44Waxing Gibbous19Thu
20Fri12:226.81:296.27:211.27:213.18:178:41Waxing Gibbous20Fri
21Sat1:087.11:546.77:510.87:582.18:198:39Waxing Gibbous21Sat
22Sun1:487.32:197.28:190.68:331.18:218:36Full Moon22Sun
23Mon2:277.52:457.78:470.69:070.38:238:33Full Moon23Mon
24Tue3:047.53:128.29:150.89:42-0.38:258:31Full Moon24Tue
25Wed3:417.43:418.59:451.110:19-0.78:278:28Waning Gibbous25Wed
26Thu4:207.24:138.710:171.710:59-0.88:298:25Waning Gibbous26Thu
27Fri5:026.84:488.710:512.311:43-0.58:318:23Waning Gibbous27Fri
28Sat5:496.35:298.511:293.18:338:20Waning Gibbous28Sat
29Sun6:445.76:188.212:340.012:133.98:358:18Third Quarter29Sun
30Mon7:555.37:207.71:340.61:114.68:378:15Third Quarter30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9459085)

Common Questions About Chiachi Island (East Side), AK Tides

Show All
What time does the tide turn (slack tide) in Chiachi Island (East Side), AK today?

Slack tide in Chiachi Island (East Side), AK is approximately 4:59 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

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 4% 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 New Moon (4% 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