Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 1h 00m at 5:23 am (-0.7 ft)
Next high tide : 11:42 am (12.5 ft)
Sunset today : 9:38 pm
Sunrise tomorrow : 4:16 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - May 1976

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:4316.42:3014.68:18-1.18:152.84:027:34Waxing Crescent1Sat
2Sun2:1516.23:0614.28:53-0.98:493.24:007:37Waxing Crescent2Sun
3Mon2:4915.73:4613.79:30-0.49:273.73:587:39Waxing Crescent3Mon
4Tue3:2715.14:3213.110:120.110:134.23:557:41Waxing Crescent4Tue
5Wed4:1314.35:2512.811:020.711:124.63:537:43First Quarter5Wed
6Thu5:1113.46:2712.812:001.33:517:45First Quarter6Thu
7Fri6:2412.87:3413.312:264.61:061.63:497:47First Quarter7Fri
8Sat7:4612.88:3614.31:483.92:141.63:477:49First Quarter8Sat
9Sun9:0213.39:3215.63:022.53:161.33:447:51Waxing Gibbous9Sun
10Mon10:0914.210:2216.94:040.74:131.03:427:53Waxing Gibbous10Mon
11Tue11:0715.211:1018.14:58-1.05:050.63:407:55Waxing Gibbous11Tue
12Wed12:0016.15:48-2.55:540.43:387:57Full Moon12Wed
13Thu12:5116.66:35-3.66:410.43:367:59Full Moon13Thu
14Fri12:4319.41:3916.87:21-4.17:280.63:348:01Full Moon14Fri
15Sat1:2819.32:2716.58:07-4.08:151.13:328:03Waning Gibbous15Sat
16Sun2:1418.63:1516.08:54-3.39:031.83:308:05Waning Gibbous16Sun
17Mon3:0117.64:0515.29:41-2.39:542.63:298:07Waning Gibbous17Mon
18Tue3:4916.14:5714.410:30-1.010:513.43:278:09Waning Gibbous18Tue
19Wed4:4214.65:5313.711:230.311:563.93:258:10Third Quarter19Wed
20Thu5:4313.16:5513.312:211.63:238:12Third Quarter20Thu
21Fri6:5312.07:5613.31:094.11:242.53:228:14Third Quarter21Fri
22Sat8:0911.58:5213.62:223.72:263.13:208:16Third Quarter22Sat
23Sun9:1811.69:4114.13:252.93:233.33:188:18Waning Crescent23Sun
24Mon10:1612.010:2214.64:171.94:123.43:178:19Waning Crescent24Mon
25Tue11:0412.611:0015.25:011.04:553.33:158:21Waning Crescent25Tue
26Wed11:4713.211:3615.75:400.15:343.23:148:23Waning Crescent26Wed
27Thu12:2613.76:16-0.66:113.03:138:24New Moon27Thu
28Fri12:1116.11:0314.16:51-1.26:463.03:118:26New Moon28Fri
29Sat12:4616.41:4014.47:25-1.57:212.93:108:28New Moon29Sat
30Sun1:2016.52:1614.58:00-1.77:573.03:098:29New Moon30Sun
31Mon1:5616.42:5414.58:36-1.78:353.13:088:30Waxing Crescent31Mon
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 8:32 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 10% 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 (10% 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