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 5h 32m 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 - Dec 2085

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:459.511:59 AM11.86:023.66:52-1.78:163:25Full Moon1Sat
2Sun1:289.612:4011.66:463.77:32-1.58:183:24Full Moon2Sun
3Mon2:099.51:2111.27:303.98:12-1.18:193:23Waning Gibbous3Mon
4Tue2:509.42:0110.58:134.08:50-0.58:213:22Waning Gibbous4Tue
5Wed3:319.12:429.88:574.19:290.18:223:21Waning Gibbous5Wed
6Thu4:128.93:258.99:454.210:070.98:243:21Waning Gibbous6Thu
7Fri4:558.74:158.110:404.310:481.78:253:20Third Quarter7Fri
8Sat5:408.75:167.311:454.211:322.58:263:20Third Quarter8Sat
9Sun6:268.76:326.712:583.88:283:19Third Quarter9Sun
10Mon7:148.97:576.612:233.22:083.28:293:19Third Quarter10Mon
11Tue8:009.29:156.81:213.83:052.48:303:19Waning Crescent11Tue
12Wed8:469.610:187.32:214.23:531.58:313:19Waning Crescent12Wed
13Thu9:3010.111:087.93:174.44:360.68:323:19Waning Crescent13Thu
14Fri10:1310.711:518.54:084.45:16-0.28:333:19Waning Crescent14Fri
15Sat10:5511.24:554.35:56-0.98:343:19New Moon15Sat
16Sun12:328.911:37 AM11.65:404.16:36-1.58:353:19New Moon16Sun
17Mon1:119.312:2011.86:243.87:16-1.88:363:19New Moon17Mon
18Tue1:519.61:0411.77:103.67:57-1.98:363:19Waxing Crescent18Tue
19Wed2:329.81:5011.47:583.38:38-1.68:373:20Waxing Crescent19Wed
20Thu3:1410.02:3910.78:493.19:21-1.08:383:20Waxing Crescent20Thu
21Fri3:5810.13:339.89:452.910:05-0.18:383:21Waxing Crescent21Fri
22Sat4:4510.24:368.810:482.710:530.98:383:21First Quarter22Sat
23Sun5:3510.35:507.812:002.48:393:22First Quarter23Sun
24Mon6:2910.47:187.31:171.98:393:23First Quarter24Mon
25Tue7:2610.68:497.312:483.12:311.18:393:23Waxing Gibbous25Tue
26Wed8:2410.710:087.71:593.93:360.48:393:24Waxing Gibbous26Wed
27Thu9:2110.911:108.33:094.34:30-0.38:393:25Waxing Gibbous27Thu
28Fri10:1511.111:598.84:114.45:18-0.88:393:26Waxing Gibbous28Fri
29Sat11:0311.35:064.36:02-1.18:393:27Full Moon29Sat
30Sun12:409.211:48 AM11.35:544.16:41-1.28:393:28Full Moon30Sun
31Mon1:189.412:2911.26:373.87:17-1.18:393:30Full Moon31Mon
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