Tides Today & Tomorrow in Sitka, AK

TIDE TIMES for Friday, July 17, 2026
The tide is currently rising in Sitka, AK.
Next low tide : 9:47 am (-2.1 ft)
Next high tide : in 3h 30m at 3:11 am (10.6 ft)
Sunset today : 9:43 pm
Sunrise tomorrow : 4:31 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9451600
Common Questions About Tides

Sitka, AK Tides - Dec 2070

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:058.911:28 AM10.85:273.56:14-0.48:153:25New Moon1Mon
2Tue12:429.112:0110.96:043.66:47-0.68:173:24New Moon2Tue
3Wed1:189.212:3410.86:403.77:20-0.68:193:23New Moon3Wed
4Thu1:529.31:0610.67:153.87:53-0.48:203:22Waxing Crescent4Thu
5Fri2:279.21:4010.37:513.98:27-0.28:223:22Waxing Crescent5Fri
6Sat3:039.12:149.88:294.09:020.28:233:21Waxing Crescent6Sat
7Sun3:428.92:529.39:104.29:380.78:253:20Waxing Crescent7Sun
8Mon4:228.83:368.69:574.310:171.28:263:20Waxing Crescent8Mon
9Tue5:078.84:308.010:554.211:021.88:273:20First Quarter9Tue
10Wed5:558.95:397.412:044.08:293:19First Quarter10Wed
11Thu6:479.27:027.11:193.38:303:19First Quarter11Thu
12Fri7:399.68:267.312:572.92:272.48:313:19Waxing Gibbous12Fri
13Sat8:3210.39:387.92:023.23:251.28:323:19Waxing Gibbous13Sat
14Sun9:2311.010:398.63:043.34:160.08:333:19Waxing Gibbous14Sun
15Mon10:1211.711:329.34:013.25:05-1.18:343:19Waxing Gibbous15Mon
16Tue11:0112.34:553.15:52-1.98:353:19Full Moon16Tue
17Wed12:219.911:49 AM12.65:462.86:38-2.58:363:19Full Moon17Wed
18Thu1:0810.312:3712.76:372.77:24-2.68:363:19Full Moon18Thu
19Fri1:5510.61:2612.47:282.58:10-2.38:373:19Waning Gibbous19Fri
20Sat2:4210.62:1611.78:212.58:56-1.78:373:20Waning Gibbous20Sat
21Sun3:3010.53:0810.79:152.69:42-0.88:383:20Waning Gibbous21Sun
22Mon4:2010.44:059.610:152.710:310.38:383:21Third Quarter22Mon
23Tue5:1110.15:108.511:212.811:221.48:393:22Third Quarter23Tue
24Wed6:069.96:257.612:362.78:393:22Third Quarter24Wed
25Thu7:039.87:517.212:202.51:532.48:393:23Third Quarter25Thu
26Fri8:009.89:147.21:253.43:011.88:393:24Waning Crescent26Fri
27Sat8:549.910:217.62:313.93:571.28:393:25Waning Crescent27Sat
28Sun9:4310.111:138.03:314.24:430.78:393:26Waning Crescent28Sun
29Mon10:2610.311:548.54:234.25:220.28:393:27Waning Crescent29Mon
30Tue11:0510.55:074.15:58-0.18:393:28New Moon30Tue
31Wed12:308.811:42 AM10.65:474.06:31-0.48:393:29New Moon31Wed
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 6:29 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 8% 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 Waxing Crescent (8% 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