Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in Petersburg, AK.
Next low tide : 6:12 pm (3.6 ft)
Next high tide : in 2h 14m at 12:34 pm (13.9 ft)
Sunset today : 8:43 pm
Sunrise tomorrow : 5:10 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Mar 1936

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:5914.57:4111.51:122.15:434:24First Quarter1Sun
2Mon7:2914.19:0312.21:146.02:331.85:414:27Waxing Gibbous2Mon
3Tue8:4714.59:5913.32:455.53:361.15:384:29Waxing Gibbous3Tue
4Wed9:4715.210:4014.33:494.44:230.45:354:31Waxing Gibbous4Wed
5Thu10:3315.811:1415.14:363.35:01-0.15:334:33Waxing Gibbous5Thu
6Fri11:1316.211:4415.85:142.25:34-0.45:304:35Full Moon6Fri
7Sat11:4816.45:481.36:04-0.45:274:37Full Moon7Sat
8Sun12:1116.312:2116.46:200.76:32-0.25:254:40Full Moon8Sun
9Mon12:3716.612:5316.16:510.37:000.35:224:42Full Moon9Mon
10Tue1:0316.71:2415.67:210.27:271.05:194:44Waning Gibbous10Tue
11Wed1:2916.61:5614.87:520.47:541.85:174:46Waning Gibbous11Wed
12Thu1:5716.32:3013.98:240.88:232.85:144:48Waning Gibbous12Thu
13Fri2:2615.83:0812.89:011.48:543.95:114:50Waning Gibbous13Fri
14Sat3:0015.13:5611.79:442.19:344.95:094:52Third Quarter14Sat
15Sun3:4314.35:0310.710:422.810:305.95:064:55Third Quarter15Sun
16Mon4:4413.66:3710.512:013.15:034:57Third Quarter16Mon
17Tue6:0813.38:0511.31:282.75:014:59Third Quarter17Tue
18Wed7:3613.89:0512.71:375.82:391.64:585:01Waning Crescent18Wed
19Thu8:4714.99:5114.42:524.43:320.44:555:03Waning Crescent19Thu
20Fri9:4616.210:3216.13:492.54:18-0.74:525:05Waning Crescent20Fri
21Sat10:3717.311:1017.64:370.54:59-1.54:505:07New Moon21Sat
22Sun11:2518.111:4918.85:23-1.25:39-1.84:475:09New Moon22Sun
23Mon12:1218.46:07-2.66:19-1.64:445:12New Moon23Mon
24Tue12:2819.512:5818.16:51-3.36:59-0.94:425:14Waxing Crescent24Tue
25Wed1:0719.71:4417.27:36-3.37:400.14:395:16Waxing Crescent25Wed
26Thu1:4819.12:3316.08:23-2.68:241.54:365:18Waxing Crescent26Thu
27Fri2:3218.13:2514.59:13-1.49:113.04:335:20Waxing Crescent27Fri
28Sat3:2116.64:2713.010:110.010:084.54:315:22First Quarter28Sat
29Sun4:2014.95:4412.011:201.311:265.54:285:24First Quarter29Sun
30Mon5:3713.67:1311.812:412.14:255:26First Quarter30Mon
31Tue7:0713.08:2912.41:045.71:592.14:235:28Waxing Gibbous31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9451439)

Common Questions About Petersburg, AK Tides

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

Slack tide in Petersburg, AK is approximately 3:23 pm — 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 Petersburg, AK?

Petersburg, AK is currently in a spring phase. Tonight's moon is 5% 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 Petersburg, 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 Petersburg, AK?

Tide predictions for Petersburg, 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 Petersburg, AK?

Tide data for Petersburg, AK is sourced from NOAA Station #9451439. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9451439.

What is the moon phase in Petersburg, AK tonight?

Tonight the moon over Petersburg, AK is Waning Crescent (5% illuminated). This places Petersburg, 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