Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Sunday, July 12, 2026
The tide is currently rising in Petersburg, AK.
Next low tide : 6:14 pm (3.7 ft)
Next high tide : in 2h 57m at 12:42 pm (13.6 ft)
Sunset today : 9:37 pm
Sunrise tomorrow : 4:17 am
Moon phase : New Moon (4% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Oct 2066

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:2717.06:14-0.26:41-0.16:566:25Full Moon1Fri
2Sat12:4216.81:0417.96:55-0.47:23-1.26:586:22Full Moon2Sat
3Sun1:2717.11:3918.47:32-0.18:02-1.97:016:20Full Moon3Sun
4Mon2:0817.02:1318.48:080.48:40-2.07:036:17Full Moon4Mon
5Tue2:4816.52:4618.08:421.29:17-1.67:056:14Waning Gibbous5Tue
6Wed3:2615.83:1817.39:162.29:54-0.97:076:12Waning Gibbous6Wed
7Thu4:0514.83:5116.49:503.310:330.27:096:09Waning Gibbous7Thu
8Fri4:4513.74:2615.310:254.411:161.37:116:06Waning Gibbous8Fri
9Sat5:3212.65:0814.011:065.57:136:04Third Quarter9Sat
10Sun6:2911.76:0312.912:082.512:006.47:156:01Third Quarter10Sun
11Mon7:4511.27:2212.11:153.31:236.97:175:59Third Quarter11Mon
12Tue9:0711.58:5212.02:333.63:056.67:195:56Third Quarter12Tue
13Wed10:0912.310:0512.63:433.34:195.57:215:53Waning Crescent13Wed
14Thu10:5313.511:0113.54:372.85:094.07:245:51Waning Crescent14Thu
15Fri11:2914.711:4714.45:192.25:502.57:265:48Waning Crescent15Fri
16Sat12:0216.05:571.66:271.07:285:46Waning Crescent16Sat
17Sun12:2915.312:3517.16:321.37:03-0.47:305:43New Moon17Sun
18Mon1:0916.01:0818.17:071.17:39-1.57:325:41New Moon18Mon
19Tue1:4916.41:4218.77:431.28:17-2.37:345:38New Moon19Tue
20Wed2:3116.52:1919.08:201.58:57-2.57:365:36Waxing Crescent20Wed
21Thu3:1416.22:5818.98:592.19:40-2.37:395:33Waxing Crescent21Thu
22Fri4:0015.63:4118.39:422.810:27-1.67:415:31Waxing Crescent22Fri
23Sat4:5114.84:3017.210:303.711:21-0.67:435:28Waxing Crescent23Sat
24Sun5:5014.05:2815.911:294.67:455:26First Quarter24Sun
25Mon7:0013.46:4114.612:240.512:455.27:475:23First Quarter25Mon
26Tue8:1813.68:0813.81:381.32:165.07:505:21First Quarter26Tue
27Wed9:2814.39:3213.82:531.73:403.97:525:19Waxing Gibbous27Wed
28Thu10:2615.410:4314.34:011.74:462.47:545:16Waxing Gibbous28Thu
29Fri11:1416.411:4114.94:571.75:400.97:565:14Waxing Gibbous29Fri
30Sat11:5617.35:451.66:25-0.47:585:12Waxing Gibbous30Sat
31Sun12:3015.512:3417.96:271.87:06-1.38:005:09Full Moon31Sun
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 3:28 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 4% 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 New Moon (4% 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