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 39m at 8:53 pm (1.5 ft)
Next high tide (tomorrow) : 2:54 am (18.6 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 - Jun 1971

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:4811.37:4012.81:064.61:142.83:078:31First Quarter1Tue
2Wed8:0210.98:3013.22:164.12:093.43:068:32First Quarter2Wed
3Thu9:1110.99:1513.83:173.13:033.83:058:34Waxing Gibbous3Thu
4Fri10:1111.49:5714.54:082.13:524.03:048:35Waxing Gibbous4Fri
5Sat11:0212.010:3715.14:521.14:384.13:038:36Waxing Gibbous5Sat
6Sun11:4712.611:1615.75:320.15:214.03:028:37Waxing Gibbous6Sun
7Mon12:2913.26:10-0.76:023.93:028:38Full Moon7Mon
8Tue1:1013.76:48-1.46:413.73:018:40Full Moon8Tue
9Wed12:3516.71:5014.07:26-1.97:213.63:008:41Full Moon9Wed
10Thu1:1617.02:3014.28:05-2.28:033.43:008:42Waning Gibbous10Thu
11Fri1:5717.03:1114.38:45-2.38:473.32:598:43Waning Gibbous11Fri
12Sat2:4116.63:5414.39:27-2.09:363.32:598:43Waning Gibbous12Sat
13Sun3:2816.04:4014.410:11-1.510:313.22:588:44Waning Gibbous13Sun
14Mon4:2115.05:2914.510:58-0.711:333.02:588:45Third Quarter14Mon
15Tue5:2113.86:2214.711:490.32:588:46Third Quarter15Tue
16Wed6:3112.77:1815.112:432.612:461.42:588:46Third Quarter16Wed
17Thu7:4912.18:1515.61:551.81:482.42:578:47Waning Crescent17Thu
18Fri9:0712.19:1316.23:050.72:533.12:578:47Waning Crescent18Fri
19Sat10:1912.610:0816.84:08-0.53:563.52:578:48Waning Crescent19Sat
20Sun11:2113.311:0117.25:04-1.64:553.62:588:48Waning Crescent20Sun
21Mon12:1514.05:54-2.35:493.42:588:48New Moon21Mon
22Tue1:0314.56:42-2.86:393.32:588:48New Moon22Tue
23Wed12:3917.61:4814.87:26-2.97:253.12:588:49New Moon23Wed
24Thu1:2417.32:2914.88:08-2.78:093.02:598:49Waxing Crescent24Thu
25Fri2:0716.83:0914.78:48-2.28:533.12:598:49Waxing Crescent25Fri
26Sat2:4816.03:4714.49:27-1.59:363.33:008:49Waxing Crescent26Sat
27Sun3:2915.04:2414.110:05-0.510:223.53:008:48Waxing Crescent27Sun
28Mon4:1113.85:0213.810:420.611:113.73:018:48First Quarter28Mon
29Tue4:5712.55:4213.511:211.73:018:48First Quarter29Tue
30Wed5:5111.36:2613.412:063.812:032.93:028:47First Quarter30Wed
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 11:53 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 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