Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently rising in Petersburg, AK.
Next low tide : 8:15 pm (3.0 ft)
Next high tide : in 2h 12m at 2:34 pm (14.3 ft)
Sunset today : 9:09 pm
Sunrise tomorrow : 4:46 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Dec 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:5818.14:593.25:42-1.77:042:17New Moon1Sat
2Sun12:0215.511:37 AM18.15:413.26:20-1.77:062:16New Moon2Sun
3Mon12:4115.612:1417.86:203.46:57-1.57:072:16New Moon3Mon
4Tue1:1815.512:5017.36:583.67:32-1.07:092:15Waxing Crescent4Tue
5Wed1:5515.11:2716.67:363.98:08-0.37:102:14Waxing Crescent5Wed
6Thu2:3214.72:0415.78:154.38:430.57:122:13Waxing Crescent6Thu
7Fri3:1014.32:4314.68:584.79:211.47:132:13Waxing Crescent7Fri
8Sat3:5113.93:2813.59:475.110:022.37:152:12First Quarter8Sat
9Sun4:3613.74:2212.410:455.210:483.27:162:12First Quarter9Sun
10Mon5:2613.65:2911.611:535.111:424.07:172:12First Quarter10Mon
11Tue6:2113.96:4611.41:044.47:182:11First Quarter11Tue
12Wed7:1614.48:0111.712:444.52:083.37:202:11Waxing Gibbous12Wed
13Thu8:0815.39:0512.51:474.73:031.97:212:11Waxing Gibbous13Thu
14Fri8:5716.310:0013.62:464.63:510.57:222:11Waxing Gibbous14Fri
15Sat9:4517.410:4914.63:394.24:36-0.97:232:11Waxing Gibbous15Sat
16Sun10:3118.311:3515.64:283.75:19-2.17:242:11Full Moon16Sun
17Mon11:1719.15:153.16:02-3.07:242:11Full Moon17Mon
18Tue12:2016.412:0319.56:012.66:46-3.47:252:11Full Moon18Tue
19Wed1:0416.912:5019.46:482.27:29-3.47:262:12Waning Gibbous19Wed
20Thu1:4817.21:3718.87:372.08:14-2.87:262:12Waning Gibbous20Thu
21Fri2:3417.22:2817.78:292.19:00-1.87:272:13Waning Gibbous21Fri
22Sat3:2217.03:2216.29:252.49:49-0.47:272:13Third Quarter22Sat
23Sun4:1316.64:2414.510:292.710:431.17:282:14Third Quarter23Sun
24Mon5:0816.35:3713.111:412.811:422.67:282:14Third Quarter24Mon
25Tue6:0916.06:5912.412:582.57:282:15Third Quarter25Tue
26Wed7:1216.08:2112.412:493.82:111.87:292:16Waning Crescent26Wed
27Thu8:1416.29:3013.01:594.43:141.07:292:17Waning Crescent27Thu
28Fri9:1016.510:2613.73:034.64:070.27:292:18Waning Crescent28Fri
29Sat9:5916.911:1214.43:594.54:52-0.57:292:19Waning Crescent29Sat
30Sun10:4417.211:5214.94:474.25:32-0.97:282:20New Moon30Sun
31Mon11:2417.35:293.96:07-1.17:282:21New Moon31Mon
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 5:24 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 100% 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 (100% 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