Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Petersburg, AK.
Next low tide (tomorrow) : in 2h 40m at 10:48 pm (2.5 ft)
Next high tide : 4:46 am (16.5 ft)
Sunset today : 9:48 pm
Sunrise tomorrow : 3:58 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Jan 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:2617.211:4514.34:214.55:24-0.78:283:22Waning Crescent1Sat
2Sun11:1817.75:184.26:10-1.48:273:23New Moon2Sun
3Mon12:3215.112:0517.96:083.76:52-1.78:273:25New Moon3Mon
4Tue1:1315.612:4818.06:523.37:30-1.88:273:26New Moon4Tue
5Wed1:5115.91:2817.87:333.08:06-1.68:263:28New Moon5Wed
6Thu2:2616.02:0517.38:122.98:39-1.28:253:29Waxing Crescent6Thu
7Fri3:0015.92:4116.58:512.99:11-0.48:253:31Waxing Crescent7Fri
8Sat3:3215.73:1715.59:293.19:430.58:243:32Waxing Crescent8Sat
9Sun4:0415.33:5514.410:103.410:151.68:233:34Waxing Crescent9Sun
10Mon4:3814.94:3713.110:543.710:492.88:223:36First Quarter10Mon
11Tue5:1614.55:2811.911:464.011:284.08:213:37First Quarter11Tue
12Wed6:0014.26:3310.912:504.28:203:39First Quarter12Wed
13Thu6:5414.07:5710.512:175.12:033.98:193:41First Quarter13Thu
14Fri7:5814.19:2310.91:245.93:153.18:183:43Waxing Gibbous14Fri
15Sat9:0414.710:3011.92:436.24:151.98:173:45Waxing Gibbous15Sat
16Sun10:0315.611:2213.13:555.85:050.68:163:47Waxing Gibbous16Sun
17Mon10:5516.84:535.05:49-0.88:143:49Waxing Gibbous17Mon
18Tue12:0614.311:43 AM17.85:434.06:30-2.08:133:51Full Moon18Tue
19Wed12:4615.612:2918.76:282.97:09-2.98:123:53Full Moon19Wed
20Thu1:2516.61:1319.17:131.97:48-3.38:103:55Full Moon20Thu
21Fri2:0417.51:5819.17:571.18:27-3.18:093:57Waning Gibbous21Fri
22Sat2:4218.02:4318.48:430.69:07-2.48:073:59Waning Gibbous22Sat
23Sun3:2218.23:3017.29:300.59:48-1.28:054:01Waning Gibbous23Sun
24Mon4:0418.04:2115.710:220.710:320.48:044:03Third Quarter24Mon
25Tue4:4917.55:2013.911:201.211:212.18:024:05Third Quarter25Tue
26Wed5:4116.86:3212.412:281.88:004:07Third Quarter26Wed
27Thu6:4216.08:0311.712:203.81:472.07:594:10Third Quarter27Thu
28Fri7:5515.59:3411.91:345.13:101.87:574:12Waning Crescent28Fri
29Sat9:1115.510:4512.82:595.54:201.07:554:14Waning Crescent29Sat
30Sun10:1715.911:3813.84:155.25:160.27:534:16Waning Crescent30Sun
31Mon11:1216.55:144.56:01-0.57:514:18Waning Crescent31Mon
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 1:47 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 19% 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 Waxing Crescent (19% 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