Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 3h 57m at 8:47 am (-4.0 ft)
Next high tide : 3:06 pm (16.2 ft)
Sunset today : 9:33 pm
Sunrise tomorrow : 4:22 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Apr 1972

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:0116.71:4114.67:31-0.57:312.44:195:31Waning Gibbous1Sat
2Sun1:2816.32:1513.88:030.08:003.34:165:33Waning Gibbous2Sun
3Mon1:5815.72:5212.88:380.78:324.24:145:35Waning Gibbous3Mon
4Tue2:3115.03:3711.89:191.59:105.14:115:37Waning Gibbous4Tue
5Wed3:1214.14:3810.910:112.310:035.94:085:39Third Quarter5Wed
6Thu4:0713.26:0010.611:192.811:246.44:065:42Third Quarter6Thu
7Fri5:2512.67:2411.212:412.84:035:44Third Quarter7Fri
8Sat6:5512.78:2512.41:035.91:542.24:005:46Waning Crescent8Sat
9Sun8:1113.59:1213.92:214.62:511.33:585:48Waning Crescent9Sun
10Mon9:1314.79:5215.53:192.73:380.53:555:50Waning Crescent10Mon
11Tue10:0615.810:3117.14:070.74:21-0.13:525:52Waning Crescent11Tue
12Wed10:5616.711:1018.44:52-1.25:02-0.43:505:54New Moon12Wed
13Thu11:4317.211:4919.35:36-2.85:43-0.43:475:56New Moon13Thu
14Fri12:3017.36:20-3.76:250.13:445:58New Moon14Fri
15Sat12:2919.61:1816.87:05-4.07:070.83:426:01Waxing Crescent15Sat
16Sun1:1219.32:0616.07:52-3.57:521.83:396:03Waxing Crescent16Sun
17Mon1:5718.42:5814.88:41-2.58:403.03:376:05Waxing Crescent17Mon
18Tue2:4617.03:5713.69:36-1.29:384.23:346:07First Quarter18Tue
19Wed3:4315.45:0612.710:390.210:505.03:326:09First Quarter19Wed
20Thu4:5413.96:2512.411:521.23:296:11First Quarter20Thu
21Fri6:1912.97:3912.812:225.21:071.83:276:13First Quarter21Fri
22Sat7:4312.88:3713.51:504.52:131.93:246:15Waxing Gibbous22Sat
23Sun8:5013.19:2214.32:563.33:071.83:226:18Waxing Gibbous23Sun
24Mon9:4413.59:5915.13:462.13:501.73:196:20Waxing Gibbous24Mon
25Tue10:2914.010:3115.74:261.04:271.83:176:22Waxing Gibbous25Tue
26Wed11:0814.311:0116.15:020.15:011.93:146:24Full Moon26Wed
27Thu11:4414.511:3016.45:34-0.65:332.23:126:26Full Moon27Thu
28Fri12:1914.56:06-1.06:042.53:096:28Full Moon28Fri
29Sat12:0016.512:5314.46:38-1.16:362.93:076:30Full Moon29Sat
30Sun12:3016.42:2714.18:10-0.98:073.44:057:32Waning Gibbous30Sun
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 11:56 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 3% 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 New Moon (3% 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