Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 2h 41m at 8:47 am (-4.0 ft)
Next high tide : 3:06 pm (16.2 ft)
Sunset today : 9:33 pm
Sunrise tomorrow : 4:22 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Mar 1972

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:4616.912:5516.66:550.47:06-0.45:424:25Full Moon1Wed
2Thu1:1217.01:2815.97:270.37:340.45:404:27Waning Gibbous2Thu
3Fri1:3916.82:0115.17:590.58:021.55:374:29Waning Gibbous3Fri
4Sat2:0516.42:3414.08:310.98:302.65:354:31Waning Gibbous4Sat
5Sun2:3415.83:1112.89:071.68:593.85:324:34Waning Gibbous5Sun
6Mon3:0615.03:5711.59:492.59:345.05:294:36Third Quarter6Mon
7Tue3:4514.15:0110.410:453.310:236.15:274:38Third Quarter7Tue
8Wed4:4113.36:409.912:053.85:244:40Third Quarter8Wed
9Thu6:0312.98:1910.61:393.45:214:42Third Quarter9Thu
10Fri7:3413.29:1911.81:356.72:502.35:194:44Waning Crescent10Fri
11Sat8:4514.310:0113.32:535.53:411.05:164:47Waning Crescent11Sat
12Sun9:4115.510:3814.93:483.94:22-0.25:134:49Waning Crescent12Sun
13Mon10:3016.811:1216.44:342.14:59-1.25:114:51New Moon13Mon
14Tue11:1517.711:4717.85:160.35:36-1.75:084:53New Moon14Tue
15Wed11:5918.25:58-1.26:13-1.85:054:55New Moon15Wed
16Thu12:2218.812:4318.16:39-2.36:50-1.35:024:57New Moon16Thu
17Fri12:5819.31:2817.57:22-2.87:28-0.45:004:59Waxing Crescent17Fri
18Sat1:3619.22:1516.48:07-2.68:080.84:575:02Waxing Crescent18Sat
19Sun2:1718.63:0515.08:56-1.88:522.44:545:04Waxing Crescent19Sun
20Mon3:0217.44:0313.49:51-0.59:433.94:525:06First Quarter20Mon
21Tue3:5715.95:1812.110:580.810:525.34:495:08First Quarter21Tue
22Wed5:0814.56:5111.612:191.64:465:10First Quarter22Wed
23Thu6:4013.78:1912.212:296.01:451.84:435:12First Quarter23Thu
24Fri8:0813.89:2013.32:095.42:551.34:415:14Waxing Gibbous24Fri
25Sat9:1614.410:0514.33:204.23:480.74:385:16Waxing Gibbous25Sat
26Sun10:0815.110:4115.24:102.84:290.34:355:18Waxing Gibbous26Sun
27Mon10:5015.511:1316.04:511.65:040.14:335:21Full Moon27Mon
28Tue11:2815.811:4116.55:270.65:360.24:305:23Full Moon28Tue
29Wed12:0315.85:59-0.16:060.54:275:25Full Moon29Wed
30Thu12:0816.812:3615.66:30-0.66:341.04:245:27Full Moon30Thu
31Fri12:3416.81:0815.27:00-0.77:021.74:225:29Waning 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 11:56 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 3% 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 (3% 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