Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 6h 32m at 7:13 am (-3.1 ft)
Next high tide : 1:34 pm (14.7 ft)
Sunset today : 9:36 pm
Sunrise tomorrow : 4:19 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Aug 1973

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:2218.02:5817.58:45-2.79:06-0.13:528:03Waxing Crescent1Wed
2Thu3:0716.83:3617.19:23-1.59:520.33:548:01Waxing Crescent2Thu
3Fri3:5215.34:1516.410:020.110:411.03:567:59Waxing Crescent3Fri
4Sat4:4013.64:5515.510:421.811:341.83:587:57First Quarter4Sat
5Sun5:3512.05:4114.511:273.54:007:55First Quarter5Sun
6Mon6:4410.86:3713.612:382.612:214.94:027:53First Quarter6Mon
7Tue8:1410.27:4813.21:543.01:355.94:047:50First Quarter7Tue
8Wed9:4110.69:0213.33:132.82:596.14:067:48Waxing Gibbous8Wed
9Thu10:4311.410:0513.94:182.14:095.64:087:46Waxing Gibbous9Thu
10Fri11:2712.310:5414.75:061.35:014.84:107:43Waxing Gibbous10Fri
11Sat12:0313.25:450.45:443.94:127:41Waxing Gibbous11Sat
12Sun12:3514.16:19-0.36:212.94:147:39Full Moon12Sun
13Mon12:1416.11:0414.96:50-0.96:552.14:167:36Full Moon13Mon
14Tue12:4916.51:3315.67:19-1.27:291.34:187:34Full Moon14Tue
15Wed1:2416.62:0116.17:48-1.28:030.84:207:32Full Moon15Wed
16Thu1:5916.52:3016.48:17-0.98:390.44:227:29Waning Gibbous16Thu
17Fri2:3616.03:0016.68:47-0.39:170.34:247:27Waning Gibbous17Fri
18Sat3:1515.23:3316.59:190.69:590.54:267:24Waning Gibbous18Sat
19Sun3:5814.14:1116.19:561.810:490.94:287:22Third Quarter19Sun
20Mon4:5112.94:5715.610:393.111:521.44:307:19Third Quarter20Mon
21Tue5:5811.75:5815.011:354.44:327:17Third Quarter21Tue
22Wed7:2611.27:1914.71:091.712:545.34:347:14Third Quarter22Wed
23Thu8:5911.68:4515.12:341.32:305.34:367:11Waning Crescent23Thu
24Fri10:1212.99:5816.03:490.33:534.44:387:09Waning Crescent24Fri
25Sat11:0614.310:5917.14:48-0.94:562.94:407:06Waning Crescent25Sat
26Sun11:5215.811:5117.95:37-1.95:491.44:427:04New Moon26Sun
27Mon12:3316.96:20-2.56:350.14:447:01New Moon27Mon
28Tue12:3818.31:1117.77:00-2.67:18-0.84:466:58New Moon28Tue
29Wed1:2218.11:4718.17:38-2.28:00-1.24:486:56Waxing Crescent29Wed
30Thu2:0517.52:2218.08:14-1.38:40-1.14:506:53Waxing Crescent30Thu
31Fri2:4616.52:5617.58:50-0.19:21-0.54:526:51Waxing Crescent31Fri
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 10:23 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 Petersburg, AK?

Petersburg, AK is currently in a spring phase. Tonight's moon is 1% 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 (1% 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