Tides Today & Tomorrow in Sitka, AK

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in Sitka, AK.
Next low tide : 8:50 am (-1.2 ft)
Next high tide : in 3h 34m at 2:11 am (9.8 ft)
Sunset today : 9:18 pm
Sunrise tomorrow : 4:57 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9451600
Common Questions About Tides

Sitka, AK Tides - Feb 2086

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:209.82:069.78:132.28:240.37:584:31Waning Gibbous1Fri
2Sat2:479.92:419.18:482.18:511.07:564:33Waning Gibbous2Sat
3Sun3:149.83:198.59:252.19:191.77:544:35Waning Gibbous3Sun
4Mon3:449.74:017.710:062.29:482.57:524:38Waning Gibbous4Mon
5Tue4:169.54:537.010:542.410:213.47:494:40Third Quarter5Tue
6Wed4:569.46:046.411:562.511:044.27:474:42Third Quarter6Wed
7Thu5:479.27:416.21:132.37:454:45Third Quarter7Thu
8Fri6:549.29:166.612:124.82:321.77:434:47Waning Crescent8Fri
9Sat8:099.510:207.41:495.13:360.97:414:49Waning Crescent9Sat
10Sun9:1810.011:058.23:134.74:28-0.17:384:52Waning Crescent10Sun
11Mon10:1810.611:449.14:173.95:13-0.97:364:54Waning Crescent11Mon
12Tue11:1211.25:112.95:55-1.57:344:56New Moon12Tue
13Wed12:2110.012:0211.66:001.96:35-1.87:314:58New Moon13Wed
14Thu12:5710.712:5011.76:480.97:14-1.77:295:01New Moon14Thu
15Fri1:3411.31:3811.37:350.27:54-1.27:275:03Waxing Crescent15Fri
16Sat2:1211.62:2610.78:22-0.28:33-0.47:245:05Waxing Crescent16Sat
17Sun2:5211.73:189.89:12-0.29:130.77:225:08Waxing Crescent17Sun
18Mon3:3311.44:148.810:040.09:561.97:195:10First Quarter18Mon
19Tue4:1910.95:197.811:030.510:443.17:175:12First Quarter19Tue
20Wed5:1110.36:427.112:141.07:145:14First Quarter20Wed
21Thu6:169.68:216.91:361.37:125:17First Quarter21Thu
22Fri7:339.29:477.31:184.82:561.27:095:19Waxing Gibbous22Fri
23Sat8:529.110:437.92:544.73:590.87:075:21Waxing Gibbous23Sat
24Sun9:579.311:248.44:044.24:480.57:045:23Waxing Gibbous24Sun
25Mon10:499.611:568.94:553.55:270.27:025:26Waxing Gibbous25Mon
26Tue11:319.85:362.86:000.06:595:28Full Moon26Tue
27Wed12:249.312:099.96:112.26:300.06:565:30Full Moon27Wed
28Thu12:499.612:449.86:451.76:580.26:545:32Full Moon28Thu
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 5:30 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 spring phase. Tonight's moon is 99% 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 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 Full Moon (99% illuminated). This places Sitka, 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