Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 2h 48m at 10:23 pm (3.4 ft)
Next high tide (tomorrow) : 4:12 am (15.0 ft)
Sunset today : 9:46 pm
Sunrise tomorrow : 4:06 am
Moon phase : Waning Gibbous (87% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Mar 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:1914.012:0315.86:083.76:34-0.26:425:25Full Moon1Tue
2Wed12:4614.812:3616.26:412.77:02-0.66:395:27Full Moon2Wed
3Thu1:1215.51:0816.47:111.87:29-0.76:375:29Full Moon3Thu
4Fri1:3616.11:3916.37:411.27:55-0.46:345:32Full Moon4Fri
5Sat2:0116.52:1116.08:110.78:200.16:325:34Waning Gibbous5Sat
6Sun2:2616.72:4315.48:410.58:460.96:295:36Waning Gibbous6Sun
7Mon2:5116.63:1714.69:130.59:141.96:265:38Waning Gibbous7Mon
8Tue3:1916.43:5513.59:500.89:453.16:245:40Waning Gibbous8Tue
9Wed3:5116.04:4212.210:331.410:224.36:215:43Third Quarter9Wed
10Thu4:3215.35:4711.111:302.111:135.56:185:45Third Quarter10Thu
11Fri5:2814.57:2510.512:492.56:165:47Third Quarter11Fri
12Sat6:5114.09:0811.112:346.52:242.26:135:49Third Quarter12Sat
13Sun8:2814.310:1712.62:246.43:441.16:105:51Waning Crescent13Sun
14Mon9:4815.411:0614.33:515.14:43-0.36:085:53Waning Crescent14Mon
15Tue10:5016.711:4816.04:543.25:30-1.56:055:55Waning Crescent15Tue
16Wed11:4317.85:451.26:13-2.36:025:58New Moon16Wed
17Thu12:2617.412:3218.56:31-0.66:52-2.55:596:00New Moon17Thu
18Fri1:0318.51:1718.57:15-1.97:30-2.15:576:02New Moon18Fri
19Sat1:4019.12:0218.07:58-2.68:07-1.25:546:04Waxing Crescent19Sat
20Sun2:1619.22:4617.08:40-2.68:440.15:516:06Waxing Crescent20Sun
21Mon2:5218.63:3015.59:24-1.99:211.75:496:08Waxing Crescent21Mon
22Tue3:2917.54:1713.910:09-0.810:013.45:466:10Waxing Crescent22Tue
23Wed4:0816.05:1212.311:000.710:455.05:436:12First Quarter23Wed
24Thu4:5514.56:2411.012:032.15:406:14First Quarter24Thu
25Fri6:0013.08:0710.51:263.05:386:17First Quarter25Fri
26Sat7:3612.29:3711.11:307.12:553.05:356:19First Quarter26Sat
27Sun9:0812.510:3112.13:186.54:022.55:326:21Waxing Gibbous27Sun
28Mon10:1213.211:0813.14:235.44:491.75:306:23Waxing Gibbous28Mon
29Tue10:5814.011:3714.15:074.05:251.15:276:25Waxing Gibbous29Tue
30Wed11:3714.75:422.75:560.65:246:27Waxing Gibbous30Wed
31Thu12:0415.012:1215.26:141.66:250.45:216:29Full Moon31Thu
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 1:17 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 87% 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 (87% 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