Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 3h 31m at 9:44 pm (3.5 ft)
Next high tide (tomorrow) : 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 - Jan 1990

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:5115.73:3416.19:443.210:04-0.48:283:22Waxing Crescent1Mon
2Tue4:3115.84:2314.910:353.110:460.78:283:23First Quarter2Tue
3Wed5:1415.85:2213.611:353.011:332.18:273:25First Quarter3Wed
4Thu6:0415.96:3412.412:432.78:273:26First Quarter4Thu
5Fri7:0216.08:0011.912:303.41:592.18:263:28First Quarter5Fri
6Sat8:0716.29:2712.21:384.53:141.18:253:29Waxing Gibbous6Sat
7Sun9:1416.710:4013.12:555.14:20-0.18:253:31Waxing Gibbous7Sun
8Mon10:1817.411:4014.24:095.05:18-1.28:243:32Waxing Gibbous8Mon
9Tue11:1618.25:124.56:08-2.28:233:34Full Moon9Tue
10Wed12:3015.212:0818.76:073.86:54-2.78:223:36Full Moon10Wed
11Thu1:1516.012:5618.96:563.17:37-2.98:213:37Full Moon11Thu
12Fri1:5616.51:4018.67:412.68:16-2.78:203:39Full Moon12Fri
13Sat2:3516.72:2217.98:252.38:54-2.08:193:41Waning Gibbous13Sat
14Sun3:1116.63:0316.89:072.39:30-1.08:183:43Waning Gibbous14Sun
15Mon3:4616.33:4315.59:502.610:050.38:173:45Waning Gibbous15Mon
16Tue4:2115.84:2513.910:343.010:391.88:163:47Third Quarter16Tue
17Wed4:5715.35:1212.411:233.411:163.38:143:49Third Quarter17Wed
18Thu5:3614.76:1111.112:203.98:133:51Third Quarter18Thu
19Fri6:2214.27:3110.31:304.08:123:53Third Quarter19Fri
20Sat7:2013.89:0610.312:566.02:493.88:103:55Third Quarter20Sat
21Sun8:2813.910:2411.02:136.73:583.08:093:57Waning Crescent21Sun
22Mon9:3414.411:1812.03:336.74:532.08:073:59Waning Crescent22Mon
23Tue10:3015.24:366.25:360.98:054:01Waning Crescent23Tue
24Wed12:0013.011:18 AM16.15:265.46:14-0.28:044:03Waning Crescent24Wed
25Thu12:3514.012:0117.06:084.46:49-1.28:024:05New Moon25Thu
26Fri1:0915.012:4117.76:473.47:22-1.98:004:08New Moon26Fri
27Sat1:4115.81:2018.17:262.57:55-2.27:594:10New Moon27Sat
28Sun2:1316.51:5918.18:041.78:28-2.17:574:12Waxing Crescent28Sun
29Mon2:4617.02:3917.58:451.29:02-1.67:554:14Waxing Crescent29Mon
30Tue3:2017.33:2216.69:280.99:38-0.57:534:16Waxing Crescent30Tue
31Wed3:5617.44:1015.210:150.910:160.97:514:19Waxing Crescent31Wed
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 12:39 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