Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently rising in Petersburg, AK.
Next low tide : 7:39 pm (3.7 ft)
Next high tide : in 4h 04m at 2:03 pm (13.7 ft)
Sunset today : 9:11 pm
Sunrise tomorrow : 4:45 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Oct 1958

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:3915.11:3616.17:332.48:070.44:554:27Waning Gibbous1Wed
2Thu2:1414.42:0715.58:043.28:441.14:574:25Waning Gibbous2Thu
3Fri2:5313.52:4214.78:394.19:271.94:594:22Waning Gibbous3Fri
4Sat3:4112.63:2713.99:215.010:222.65:014:19Third Quarter4Sat
5Sun4:4211.94:2813.210:195.811:313.05:034:17Third Quarter5Sun
6Mon5:5911.75:5012.811:436.15:054:14Third Quarter6Mon
7Tue7:1712.37:1613.312:492.81:155.45:074:11Waning Crescent7Tue
8Wed8:1913.68:2614.31:592.12:274.05:094:09Waning Crescent8Wed
9Thu9:0915.29:2415.62:551.23:232.25:114:06Waning Crescent9Thu
10Fri9:5316.810:1616.83:440.24:120.35:134:03Waning Crescent10Fri
11Sat10:3518.211:0417.84:28-0.54:57-1.45:164:01New Moon11Sat
12Sun11:1619.411:5218.35:11-0.95:41-2.75:183:58New Moon12Sun
13Mon11:5720.15:54-0.96:26-3.45:203:55New Moon13Mon
14Tue12:3818.312:3920.26:36-0.57:11-3.55:223:53Waxing Crescent14Tue
15Wed1:2617.71:2319.67:200.47:58-2.95:243:50Waxing Crescent15Wed
16Thu2:1516.82:0818.68:071.58:48-1.75:263:48Waxing Crescent16Thu
17Fri3:0815.62:5917.18:582.89:43-0.35:283:45First Quarter17Fri
18Sat4:0914.43:5715.49:584.110:471.05:303:43First Quarter18Sat
19Sun5:1913.55:0914.011:135.05:333:40First Quarter19Sun
20Mon6:3813.36:3313.212:012.112:415.15:353:38First Quarter20Mon
21Tue7:5013.77:5313.21:182.52:014.45:373:35Waxing Gibbous21Tue
22Wed8:4614.58:5713.72:232.53:013.35:393:33Waxing Gibbous22Wed
23Thu9:3015.29:4714.33:152.33:492.15:413:30Waxing Gibbous23Thu
24Fri10:0715.910:2914.83:572.14:281.15:433:28Waxing Gibbous24Fri
25Sat10:3916.511:0615.24:332.05:030.35:463:25Full Moon25Sat
26Sun11:0916.911:4115.55:062.05:36-0.35:483:23Full Moon26Sun
27Mon11:3817.15:372.16:07-0.75:503:21Full Moon27Mon
28Tue12:1415.612:0717.16:072.46:39-0.85:523:18Full Moon28Tue
29Wed12:4815.512:3717.06:372.77:11-0.65:543:16Waning Gibbous29Wed
30Thu1:2215.21:0716.67:083.27:45-0.35:573:13Waning Gibbous30Thu
31Fri1:5814.71:4016.17:413.88:220.35:593:11Waning Gibbous31Fri
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 4:51 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 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 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 Full Moon (99% 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