Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in Petersburg, AK.
Next low tide : 10:13 am (-1.0 ft)
Next high tide : in 18m at 3:34 am (15.6 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 - May 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:2513.811:0515.64:322.64:470.95:038:34Waning Crescent1Mon
2Tue11:2814.711:4917.15:290.55:370.65:008:36Waning Crescent2Tue
3Wed12:2315.66:19-1.46:230.54:588:38Waning Crescent3Wed
4Thu12:3118.21:1516.17:06-2.97:080.64:568:40New Moon4Thu
5Fri1:1319.02:0416.37:51-3.87:521.04:538:42New Moon5Fri
6Sat1:5519.22:5216.28:36-4.18:361.64:518:45New Moon6Sat
7Sun2:3918.93:4015.69:22-3.79:212.44:498:47Waxing Crescent7Sun
8Mon3:2318.14:2914.810:09-2.810:083.34:478:49Waxing Crescent8Mon
9Tue4:0916.85:2113.810:58-1.611:004.24:458:51Waxing Crescent9Tue
10Wed4:5915.46:1812.911:52-0.24:438:53First Quarter10Wed
11Thu5:5713.87:2212.412:005.012:511.04:418:55First Quarter11Thu
12Fri7:0512.58:2912.31:155.31:561.94:398:57First Quarter12Fri
13Sat8:2411.79:2912.72:395.13:002.54:378:59First Quarter13Sat
14Sun9:4011.610:1813.33:534.33:572.74:359:01Waxing Gibbous14Sun
15Mon10:4311.810:5814.04:513.24:462.94:339:03Waxing Gibbous15Mon
16Tue11:3512.311:3414.75:362.05:293.04:319:05Waxing Gibbous16Tue
17Wed12:2012.86:150.96:073.14:299:06Waxing Gibbous17Wed
18Thu12:0715.31:0113.36:500.06:433.24:279:08Full Moon18Thu
19Fri12:3915.81:3913.77:24-0.77:183.34:259:10Full Moon19Fri
20Sat1:1216.22:1613.97:58-1.27:533.44:249:12Full Moon20Sat
21Sun1:4616.52:5413.98:33-1.48:283.64:229:14Full Moon21Sun
22Mon2:2116.53:3213.89:08-1.59:043.84:209:16Waning Gibbous22Mon
23Tue2:5816.44:1313.59:47-1.49:444.14:199:17Waning Gibbous23Tue
24Wed3:3816.04:5713.210:28-1.110:294.34:179:19Waning Gibbous24Wed
25Thu4:2215.45:4513.011:13-0.611:224.54:169:21Waning Gibbous25Thu
26Fri5:1314.66:3913.012:03-0.14:149:23Third Quarter26Fri
27Sat6:1413.77:3613.412:264.512:590.64:139:24Third Quarter27Sat
28Sun7:2612.98:3414.11:414.01:591.24:119:26Third Quarter28Sun
29Mon8:4512.69:3015.02:572.93:021.74:109:27Third Quarter29Mon
30Tue10:0212.710:2316.14:061.44:032.04:099:29Waning Crescent30Tue
31Wed11:1013.311:1317.15:06-0.25:002.34:089:30Waning Crescent31Wed
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 6:53 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