Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 1h 53m at 8:15 pm (3.0 ft)
Next high tide (tomorrow) : 2:07 am (16.4 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 - May 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:2613.44:4711.810:161.910:345.43:036:34Third Quarter1Tue
2Wed4:2212.45:5011.611:132.711:495.53:006:36Third Quarter2Wed
3Thu5:3111.76:5512.012:183.12:586:38Third Quarter3Thu
4Fri6:4911.57:5112.71:084.91:223.12:566:40Third Quarter4Fri
5Sat8:0011.98:3813.72:143.82:182.92:536:42Waning Crescent5Sat
6Sun9:0012.79:1914.93:062.43:072.62:516:45Waning Crescent6Sun
7Mon9:5113.69:5816.03:510.93:512.22:496:47Waning Crescent7Mon
8Tue10:3814.510:3717.14:33-0.64:321.82:476:49New Moon8Tue
9Wed11:2315.211:1617.95:14-1.95:131.62:456:51New Moon9Wed
10Thu12:0815.75:55-2.85:551.52:436:53New Moon10Thu
11Fri12:5215.96:37-3.46:371.62:416:55New Moon11Fri
12Sat12:4018.61:3915.87:21-3.57:231.82:396:57Waxing Crescent12Sat
13Sun1:2518.22:2715.58:08-3.18:122.32:376:59Waxing Crescent13Sun
14Mon2:1417.43:1915.08:58-2.49:072.82:357:01Waxing Crescent14Mon
15Tue3:0816.24:1614.59:52-1.410:113.32:337:03First Quarter15Tue
16Wed4:1014.85:1814.310:52-0.311:263.42:317:05First Quarter16Wed
17Thu5:2313.66:2414.411:560.72:297:06First Quarter17Thu
18Fri6:4412.97:2714.812:473.01:031.52:277:08First Quarter18Fri
19Sat8:0112.88:2415.42:012.12:061.92:257:10Waxing Gibbous19Sat
20Sun9:0813.29:1316.03:030.93:022.12:247:12Waxing Gibbous20Sun
21Mon10:0513.79:5816.53:55-0.23:532.32:227:14Waxing Gibbous21Mon
22Tue10:5414.110:3916.84:41-1.04:382.42:207:16Full Moon22Tue
23Wed11:3814.411:1716.95:21-1.55:192.52:197:17Full Moon23Wed
24Thu12:1814.65:59-1.85:582.72:177:19Full Moon24Thu
25Fri12:5614.56:36-1.86:362.92:167:21Full Moon25Fri
26Sat12:3016.51:3314.37:11-1.57:123.22:147:22Waning Gibbous26Sat
27Sun1:0516.12:0914.07:47-1.17:503.52:137:24Waning Gibbous27Sun
28Mon1:4115.52:4613.68:23-0.58:303.92:117:26Waning Gibbous28Mon
29Tue2:1914.73:2613.29:000.29:134.22:107:27Waning Gibbous29Tue
30Wed3:0013.74:0912.99:391.010:044.52:097:29Third Quarter30Wed
31Thu3:4812.84:5612.710:231.711:044.52:087:30Third Quarter31Thu
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 11:11 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