Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 5h 49m at 11:25 am (-2.0 ft)
Next high tide : 5:47 pm (15.2 ft)
Sunset today : 9:48 pm
Sunrise tomorrow : 3:58 am
Moon phase : Waxing Crescent (29% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - May 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:1517.54:1814.69:57-1.99:593.15:038:34Waning Gibbous1Sat
2Sun3:5516.45:0313.610:40-0.810:434.05:008:36Waning Gibbous2Sun
3Mon4:3715.25:5212.711:260.411:334.84:588:38Waning Gibbous3Mon
4Tue5:2313.96:4812.012:171.54:568:40Third Quarter4Tue
5Wed6:1912.67:5211.712:345.41:152.44:548:42Third Quarter5Wed
6Thu7:2911.78:5611.91:495.52:203.04:518:44Third Quarter6Thu
7Fri8:4711.39:5112.53:085.03:223.24:498:46Third Quarter7Fri
8Sat9:5811.510:3613.44:144.04:173.24:478:49Waning Crescent8Sat
9Sun10:5712.111:1514.35:062.85:033.14:458:51Waning Crescent9Sun
10Mon11:4712.811:5115.25:491.55:442.94:438:53Waning Crescent10Mon
11Tue12:3113.56:270.36:222.84:418:55Waning Crescent11Tue
12Wed12:2516.01:1314.17:04-0.86:592.74:398:57New Moon12Wed
13Thu1:0116.71:5314.67:41-1.77:362.64:378:59New Moon13Thu
14Fri1:3717.22:3414.88:19-2.38:142.74:359:01New Moon14Fri
15Sat2:1517.53:1614.98:59-2.68:542.84:339:02Waxing Crescent15Sat
16Sun2:5517.54:0014.79:41-2.59:373.04:319:04Waxing Crescent16Sun
17Mon3:3817.14:4714.410:26-2.210:263.44:299:06Waxing Crescent17Mon
18Tue4:2616.35:3814.111:15-1.511:223.74:279:08Waxing Crescent18Tue
19Wed5:2115.36:3513.912:08-0.74:269:10First Quarter19Wed
20Thu6:2614.17:3614.012:293.81:080.24:249:12First Quarter20Thu
21Fri7:4113.28:3914.51:463.62:110.94:229:14First Quarter21Fri
22Sat9:0212.89:3815.23:052.73:161.54:209:16Waxing Gibbous22Sat
23Sun10:1812.910:3216.14:161.44:171.94:199:17Waxing Gibbous23Sun
24Mon11:2413.411:2216.85:160.05:132.14:179:19Waxing Gibbous24Mon
25Tue12:2114.06:08-1.26:052.34:169:21Waxing Gibbous25Tue
26Wed12:0817.31:1214.56:55-2.16:522.44:149:22Full Moon26Wed
27Thu12:5217.61:5914.87:39-2.57:372.64:139:24Full Moon27Thu
28Fri1:3517.62:4214.98:21-2.68:202.84:129:26Full Moon28Fri
29Sat2:1617.33:2414.79:01-2.39:013.04:109:27Full Moon29Sat
30Sun2:5616.84:0414.39:40-1.89:433.44:099:29Waning Gibbous30Sun
31Mon3:3516.04:4413.910:19-1.110:253.84:089:30Waning Gibbous31Mon
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 2:36 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 transitional phase. Tonight's moon is 29% 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 Waxing Crescent (29% 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