Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Petersburg, AK.
Next low tide : 11:06 pm (3.3 ft)
Next high tide : in 4h 22m at 5:11 pm (14.1 ft)
Sunset today : 9:45 pm
Sunrise tomorrow : 4:07 am
Moon phase : Waning Gibbous (79% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Jan 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:1314.211:51 AM17.25:514.26:37-1.08:283:22Full Moon1Sat
2Sun12:5214.912:2917.76:303.87:14-1.78:273:23Full Moon2Sun
3Mon1:3115.41:0818.17:093.57:51-2.18:273:25Full Moon3Mon
4Tue2:0915.81:4718.17:493.38:29-2.28:263:26Waning Gibbous4Tue
5Wed2:4816.02:2817.88:303.19:08-2.08:263:28Waning Gibbous5Wed
6Thu3:2916.03:1217.29:153.19:50-1.48:253:29Waning Gibbous6Thu
7Fri4:1216.04:0116.110:063.210:35-0.58:253:31Waning Gibbous7Fri
8Sat4:5915.84:5714.811:033.311:260.78:243:32Third Quarter8Sat
9Sun5:5115.76:0513.612:113.38:233:34Third Quarter9Sun
10Mon6:5015.87:2612.712:231.91:272.98:223:36Third Quarter10Mon
11Tue7:5316.18:5112.71:283.02:442.08:213:37Waning Crescent11Tue
12Wed8:5716.610:0713.32:383.73:530.88:203:39Waning Crescent12Wed
13Thu9:5717.211:1014.23:473.94:52-0.48:193:41Waning Crescent13Thu
14Fri10:5217.84:483.75:44-1.48:183:43Waning Crescent14Fri
15Sat12:0415.111:42 AM18.35:423.36:30-2.18:173:45New Moon15Sat
16Sun12:5115.812:2818.66:303.07:12-2.48:153:47New Moon16Sun
17Mon1:3316.21:1218.57:152.77:52-2.48:143:49New Moon17Mon
18Tue2:1316.41:5318.17:582.68:29-1.98:133:51Waxing Crescent18Tue
19Wed2:5016.22:3217.48:382.69:06-1.28:113:53Waxing Crescent19Wed
20Thu3:2715.93:1016.49:192.99:41-0.38:103:55Waxing Crescent20Thu
21Fri4:0215.43:4915.110:013.310:160.98:083:57Waxing Crescent21Fri
22Sat4:3914.94:3113.810:463.710:522.18:073:59First Quarter22Sat
23Sun5:1814.45:2012.511:384.111:323.48:054:01First Quarter23Sun
24Mon6:0213.96:2111.412:394.38:044:03First Quarter24Mon
25Tue6:5513.67:3910.712:214.61:514.28:024:05First Quarter25Tue
26Wed7:5613.79:0310.91:235.53:033.68:004:07First Quarter26Wed
27Thu8:5814.110:1411.62:375.94:042.67:584:10Waxing Gibbous27Thu
28Fri9:5514.911:0812.63:465.84:541.47:574:12Waxing Gibbous28Fri
29Sat10:4515.811:5313.84:435.25:370.17:554:14Waxing Gibbous29Sat
30Sun11:3116.85:314.46:17-1.07:534:16Full Moon30Sun
31Mon12:3314.812:1417.76:143.66:55-2.07:514:19Full 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 8:08 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 transitional phase. Tonight's moon is 79% 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 shifting between spring and neap.

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 (79% illuminated). This places Petersburg, AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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