Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in Petersburg, AK.
Next low tide : 6:12 pm (3.6 ft)
Next high tide : in 14m at 12:34 pm (13.9 ft)
Sunset today : 8:43 pm
Sunrise tomorrow : 5:10 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Feb 1936

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:2415.57:5511.61:351.86:513:19Waxing Gibbous1Sat
2Sun7:4415.39:1712.31:225.72:521.26:493:21Waxing Gibbous2Sun
3Mon8:5615.710:1713.42:485.63:530.36:473:24Waxing Gibbous3Mon
4Tue9:5616.311:0314.43:554.94:43-0.56:453:26Waxing Gibbous4Tue
5Wed10:4516.911:4115.24:464.05:24-1.16:433:28Full Moon5Wed
6Thu11:2717.25:293.16:00-1.46:413:30Full Moon6Thu
7Fri12:1515.812:0517.36:072.46:32-1.46:393:33Full Moon7Fri
8Sat12:4516.312:4017.16:421.87:03-1.16:363:35Full Moon8Sat
9Sun1:1416.51:1316.67:151.57:31-0.66:343:37Waning Gibbous9Sun
10Mon1:4116.51:4515.97:481.57:590.26:323:39Waning Gibbous10Mon
11Tue2:0816.32:1814.98:211.78:271.26:303:42Waning Gibbous11Tue
12Wed2:3616.02:5313.88:562.08:562.46:273:44Waning Gibbous12Wed
13Thu3:0615.53:3312.69:352.69:283.66:253:46Third Quarter13Thu
14Fri3:4114.94:2311.310:233.210:074.96:233:48Third Quarter14Fri
15Sat4:2614.25:3610.411:273.711:025.96:213:51Third Quarter15Sat
16Sun5:2713.77:1810.212:523.76:183:53Third Quarter16Sun
17Mon6:4713.78:4711.012:286.62:172.96:163:55Waning Crescent17Mon
18Tue8:0714.49:4512.42:046.33:201.66:133:58Waning Crescent18Tue
19Wed9:1215.610:2913.93:165.24:090.16:114:00Waning Crescent19Wed
20Thu10:0716.911:0815.44:103.74:51-1.26:084:02Waning Crescent20Thu
21Fri10:5518.111:4516.94:582.15:30-2.26:064:04New Moon21Fri
22Sat11:4118.85:420.56:08-2.86:044:07New Moon22Sat
23Sun12:2218.112:2619.16:26-0.86:46-2.76:014:09New Moon23Sun
24Mon12:5918.91:1118.77:09-1.67:24-2.15:594:11Waxing Crescent24Mon
25Tue1:3619.21:5617.77:54-1.88:03-1.05:564:13Waxing Crescent25Tue
26Wed2:1619.02:4416.38:42-1.58:440.65:534:15Waxing Crescent26Wed
27Thu2:5818.23:3714.69:33-0.69:292.35:514:18First Quarter27Thu
28Fri3:4517.04:4012.910:330.610:234.15:484:20First Quarter28Fri
29Sat4:4315.66:0211.711:461.611:355.55:464:22First Quarter29Sat
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 3:23 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 5% 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 Crescent (5% 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