Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Petersburg, AK.
Next low tide (tomorrow) : in 1h 47m at 11:54 pm (3.1 ft)
Next high tide : 5:40 am (13.3 ft)
Sunset today : 9:44 pm
Sunrise tomorrow : 4:08 am
Moon phase : Waning Gibbous (70% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - May 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:0311.59:4211.52:166.53:073.05:028:35First Quarter1Wed
2Thu9:2811.610:3412.43:465.84:102.65:008:37First Quarter2Thu
3Fri10:3412.311:1513.64:484.54:592.04:578:39Waxing Gibbous3Fri
4Sat11:2613.211:5014.75:343.05:411.54:558:41Waxing Gibbous4Sat
5Sun12:1214.16:131.56:181.14:538:43Waxing Gibbous5Sun
6Mon12:2315.912:5414.86:500.06:550.94:518:45Full Moon6Mon
7Tue12:5716.91:3615.47:27-1.37:310.94:498:47Full Moon7Tue
8Wed1:3117.82:1815.88:05-2.48:081.14:468:49Full Moon8Wed
9Thu2:0718.33:0215.78:45-2.98:471.54:448:51Full Moon9Thu
10Fri2:4618.43:4715.49:27-3.09:292.24:428:53Waning Gibbous10Fri
11Sat3:2718.04:3614.710:12-2.710:153.04:408:55Waning Gibbous11Sat
12Sun4:1317.35:3114.011:03-1.911:093.84:388:57Waning Gibbous12Sun
13Mon5:0616.16:3513.312:01-0.94:368:59Third Quarter13Mon
14Tue6:1014.87:4713.112:154.51:070.14:349:01Third Quarter14Tue
15Wed7:2713.79:0013.51:374.72:200.74:329:03Third Quarter15Wed
16Thu8:5213.210:0314.33:044.13:311.04:309:05Third Quarter16Thu
17Fri10:1013.410:5615.34:192.84:321.04:299:07Waning Crescent17Fri
18Sat11:1513.811:4016.25:181.35:251.14:279:09Waning Crescent18Sat
19Sun12:1014.36:08-0.16:101.24:259:11Waning Crescent19Sun
20Mon12:2016.812:5814.76:52-1.26:511.54:239:13New Moon20Mon
21Tue12:5717.21:4214.87:32-1.97:301.94:229:15New Moon21Tue
22Wed1:3317.32:2314.88:09-2.28:062.44:209:16New Moon22Wed
23Thu2:0717.13:0114.68:46-2.18:423.04:189:18New Moon23Thu
24Fri2:4016.73:4014.29:22-1.89:173.64:179:20Waxing Crescent24Fri
25Sat3:1416.04:1813.79:59-1.19:544.24:159:21Waxing Crescent25Sat
26Sun3:4915.24:5913.010:38-0.310:334.84:149:23Waxing Crescent26Sun
27Mon4:2814.35:4412.411:200.511:195.34:139:25Waxing Crescent27Mon
28Tue5:1113.36:3512.012:071.34:119:26First Quarter28Tue
29Wed6:0412.47:3311.912:165.71:012.04:109:28First Quarter29Wed
30Thu7:1111.68:3212.21:285.71:592.44:099:29First Quarter30Thu
31Fri8:2711.39:2612.92:465.22:592.64:089:31First Quarter31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9451439)

Common Questions About Petersburg, AK Tides

Show All
What time does the tide turn (slack tide) in Petersburg, AK today?

Slack tide in Petersburg, AK is approximately 2:47 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 transitional phase. Tonight's moon is 70% 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 (70% 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