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 2h 29m 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 - Mar 2086

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:159.91:179.77:161.37:250.56:515:35Full Moon1Fri
2Sat1:3910.01:519.47:481.07:520.96:495:37Waning Gibbous2Sat
3Sun2:0510.12:259.08:200.98:191.56:465:39Waning Gibbous3Sun
4Mon2:3110.13:018.58:540.98:462.26:435:41Waning Gibbous4Mon
5Tue2:589.93:417.99:321.19:152.96:415:44Waning Gibbous5Tue
6Wed3:309.74:307.210:151.49:483.66:385:46Third Quarter6Wed
7Thu4:099.45:356.711:101.610:334.26:355:48Third Quarter7Thu
8Fri5:019.17:036.412:231.76:335:50Third Quarter8Fri
9Sat6:128.88:356.71:451.56:305:52Third Quarter9Sat
10Sun8:378.910:407.51:284.83:570.97:276:54Waning Crescent10Sun
11Mon9:579.311:278.43:574.14:540.27:256:57Waning Crescent11Mon
12Tue11:039.95:033.05:42-0.57:226:59Waning Crescent12Tue
13Wed12:079.412:0010.55:571.76:26-0.97:197:01New Moon13Wed
14Thu12:4510.412:5210.96:450.47:07-0.97:167:03New Moon14Thu
15Fri1:2311.21:4111.07:32-0.67:48-0.77:147:05New Moon15Fri
16Sat2:0111.72:3010.88:18-1.38:28-0.27:117:07New Moon16Sat
17Sun2:3912.03:1810.39:05-1.69:090.67:087:10Waxing Crescent17Sun
18Mon3:1911.94:099.59:52-1.49:511.67:057:12Waxing Crescent18Mon
19Tue4:0111.45:038.710:42-0.910:352.67:037:14Waxing Crescent19Tue
20Wed4:4710.66:067.811:37-0.111:263.57:007:16First Quarter20Wed
21Thu5:399.77:227.212:410.76:577:18First Quarter21Thu
22Fri6:458.88:517.112:334.31:581.36:557:20First Quarter22Fri
23Sat8:068.210:097.42:084.63:171.46:527:22First Quarter23Sat
24Sun9:308.111:047.83:424.34:231.36:497:25Waxing Gibbous24Sun
25Mon10:398.311:438.34:493.65:121.16:467:27Waxing Gibbous25Mon
26Tue11:328.55:372.75:511.06:447:29Waxing Gibbous26Tue
27Wed12:148.812:158.86:152.06:250.96:417:31Waxing Gibbous27Wed
28Thu12:429.212:539.06:491.26:551.06:387:33Full Moon28Thu
29Fri1:089.61:299.17:210.77:241.26:357:35Full Moon29Fri
30Sat1:339.92:039.17:520.27:531.46:337:37Full Moon30Sat
31Sun1:5910.12:379.08:24-0.18:211.86:307:40Full Moon31Sun
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