Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in Petersburg, AK.
Next low tide : 10:13 am (-1.0 ft)
Next high tide : in 4h 24m at 3:34 am (15.6 ft)
Sunset today : 9:46 pm
Sunrise tomorrow : 4:05 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Sep 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:2316.52:4716.38:39-0.88:550.55:557:48New Moon1Fri
2Sat2:5616.13:1216.49:07-0.19:270.45:577:45Waxing Crescent2Sat
3Sun3:2915.43:3816.29:340.79:580.65:597:42Waxing Crescent3Sun
4Mon4:0114.64:0415.810:011.810:311.16:017:40Waxing Crescent4Mon
5Tue4:3613.54:3215.310:293.011:081.86:037:37Waxing Crescent5Tue
6Wed5:1512.35:0514.510:594.211:522.66:057:34First Quarter6Wed
7Thu6:0411.25:4613.711:365.46:077:31First Quarter7Thu
8Fri7:1810.26:4813.012:533.312:326.56:097:29First Quarter8Fri
9Sat9:0610.18:1812.72:203.62:087.16:117:26First Quarter9Sat
10Sun10:3311.09:4713.43:523.03:536.66:137:23Waxing Gibbous10Sun
11Mon11:2612.310:5414.64:581.85:035.26:157:21Waxing Gibbous11Mon
12Tue12:0613.85:460.55:553.56:177:18Waxing Gibbous12Tue
13Wed12:4215.46:26-0.76:391.66:197:15Waxing Gibbous13Wed
14Thu12:3617.21:1616.97:04-1.67:22-0.26:217:12Full Moon14Thu
15Fri1:2118.01:5118.27:41-2.08:03-1.66:237:10Full Moon15Fri
16Sat2:0618.32:2719.08:18-1.88:46-2.56:257:07Full Moon16Sat
17Sun2:5018.13:0319.38:55-1.19:29-2.86:277:04Waning Gibbous17Sun
18Mon3:3617.33:4219.19:340.010:15-2.46:297:01Waning Gibbous18Mon
19Tue4:2416.04:2318.210:151.511:06-1.46:316:59Waning Gibbous19Tue
20Wed5:1714.45:1016.911:003.26:336:56Third Quarter20Wed
21Thu6:2112.96:0815.412:040.011:55 AM4.96:356:53Third Quarter21Thu
22Fri7:4511.87:2814.01:161.31:146.16:376:51Third Quarter22Fri
23Sat9:2311.89:0513.62:441.93:026.46:396:48Third Quarter23Sat
24Sun10:4112.710:2714.04:071.84:335.46:416:45Waning Crescent24Sun
25Mon11:3413.711:2714.75:101.25:344.16:436:42Waning Crescent25Mon
26Tue12:1314.75:570.76:182.86:456:40Waning Crescent26Tue
27Wed12:1415.312:4615.56:350.36:551.66:476:37Waning Crescent27Wed
28Thu12:5415.71:1416.27:070.37:280.76:496:34New Moon28Thu
29Fri1:2915.91:4116.67:370.47:590.06:526:31New Moon29Fri
30Sat2:0315.92:0616.98:050.88:29-0.36:546:29New Moon30Sat
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 6:53 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 93% 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 Waning Gibbous (93% 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