Tides Today & Tomorrow in Sitka, AK

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Sitka, AK.
Next low tide : 12:26 pm (2.5 ft)
Next high tide : in 4h 35m at 6:54 am (6.5 ft)
Sunset today : 9:35 pm
Sunrise tomorrow : 4:40 am
Moon phase : First Quarter (54% illuminated)
Tide Station Location : Station #9451600
Common Questions About Tides

Sitka, AK Tides - Oct 2071

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:537.27:137.81:042.01:164.77:066:35First Quarter1Thu
2Fri9:127.38:367.72:202.32:494.77:086:32First Quarter2Fri
3Sat10:137.79:497.93:312.24:014.17:106:30Waxing Gibbous3Sat
4Sun10:588.210:468.34:261.94:523.47:126:27Waxing Gibbous4Sun
5Mon11:338.711:338.85:091.65:332.57:146:24Waxing Gibbous5Mon
6Tue12:049.35:461.36:091.77:166:22Waxing Gibbous6Tue
7Wed12:139.212:339.86:201.16:431.07:186:19Full Moon7Wed
8Thu12:519.51:0210.36:521.17:170.37:206:16Full Moon8Thu
9Fri1:289.81:3110.67:241.27:52-0.27:226:14Full Moon9Fri
10Sat2:069.92:0210.97:571.48:29-0.57:256:11Full Moon10Sat
11Sun2:459.82:3511.08:321.89:08-0.67:276:08Waning Gibbous11Sun
12Mon3:279.53:1110.99:082.39:50-0.57:296:06Waning Gibbous12Mon
13Tue4:149.13:5210.59:492.910:38-0.27:316:03Waning Gibbous13Tue
14Wed5:088.64:4110.010:373.511:340.37:336:00Third Quarter14Wed
15Thu6:138.25:439.411:394.07:355:58Third Quarter15Thu
16Fri7:288.17:018.912:400.81:024.27:375:55Third Quarter16Fri
17Sat8:448.48:288.71:561.02:353.87:405:53Third Quarter17Sat
18Sun9:499.09:488.93:101.03:532.97:425:50Waning Crescent18Sun
19Mon10:429.810:559.44:120.94:541.87:445:48Waning Crescent19Mon
20Tue11:2710.511:529.85:060.85:440.77:465:45Waning Crescent20Tue
21Wed12:0811.05:530.86:30-0.37:485:42New Moon21Wed
22Thu12:4210.112:4611.46:360.97:12-0.97:515:40New Moon22Thu
23Fri1:2810.31:2211.57:161.37:53-1.27:535:38New Moon23Fri
24Sat2:1210.21:5811.47:551.78:32-1.17:555:35New Moon24Sat
25Sun2:549.92:3311.18:332.39:11-0.87:575:33Waxing Crescent25Sun
26Mon3:379.53:0810.69:122.99:50-0.37:595:30Waxing Crescent26Mon
27Tue4:219.03:459.99:513.610:320.48:025:28Waxing Crescent27Tue
28Wed5:098.54:269.110:344.111:171.18:045:25Waxing Crescent28Wed
29Thu6:048.15:148.411:274.68:065:23First Quarter29Thu
30Fri7:077.86:187.712:101.812:374.98:085:21First Quarter30Fri
31Sat8:147.87:397.31:142.32:064.88:105:18First Quarter31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9451600)

Common Questions About Sitka, AK Tides

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What time does the tide turn (slack tide) in Sitka, AK today?

Slack tide in Sitka, AK is approximately 9:40 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 Sitka, AK?

Sitka, AK is currently in a neap phase. Tonight's moon is 54% 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 Sitka, 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 Sitka, AK?

Tide predictions for Sitka, 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 Sitka, AK?

Tide data for Sitka, AK is sourced from NOAA Station #9451600. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9451600.

What is the moon phase in Sitka, AK tonight?

Tonight the moon over Sitka, AK is First Quarter (54% illuminated). This places Sitka, 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