Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Thursday, July 30, 2026
The tide is currently rising in Petersburg, AK.
Next low tide : 8:49 pm (2.4 ft)
Next high tide : in 5h 21m at 3:04 pm (14.8 ft)
Sunset today : 9:07 pm
Sunrise tomorrow : 4:48 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Jun 1954

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:2515.76:06-4.06:062.02:077:31New Moon1Tue
2Wed12:0818.81:1315.76:53-4.06:552.22:067:32Waxing Crescent2Wed
3Thu12:5618.32:0015.57:39-3.57:442.52:057:34Waxing Crescent3Thu
4Fri1:4417.42:4715.18:26-2.68:342.92:047:35Waxing Crescent4Fri
5Sat2:3216.13:3514.59:12-1.59:283.42:037:36Waxing Crescent5Sat
6Sun3:2314.74:2314.010:00-0.210:283.72:027:37First Quarter6Sun
7Mon4:1813.25:1513.610:491.111:343.82:017:39First Quarter7Mon
8Tue5:2111.96:0713.511:422.32:017:40First Quarter8Tue
9Wed6:3211.17:0013.512:443.612:383.22:007:41First Quarter9Wed
10Thu7:4610.87:5013.81:503.01:353.92:007:42Waxing Gibbous10Thu
11Fri8:5211.18:3714.22:482.22:304.31:597:43Waxing Gibbous11Fri
12Sat9:4811.69:2114.73:371.33:214.41:597:43Waxing Gibbous12Sat
13Sun10:3512.310:0315.34:190.54:074.31:587:44Waxing Gibbous13Sun
14Mon11:1712.910:4315.84:58-0.24:494.11:587:45Full Moon14Mon
15Tue11:5613.411:2116.25:35-0.95:283.91:587:46Full Moon15Tue
16Wed12:3413.86:11-1.46:073.61:577:46Full Moon16Wed
17Thu12:0016.51:1014.16:47-1.76:453.41:577:47Full Moon17Thu
18Fri12:3816.61:4714.37:22-1.97:253.21:577:47Waning Gibbous18Fri
19Sat1:1716.42:2414.47:59-1.88:073.11:577:48Waning Gibbous19Sat
20Sun1:5915.93:0314.58:37-1.58:533.01:577:48Waning Gibbous20Sun
21Mon2:4415.23:4514.69:17-0.89:462.81:587:48Waning Gibbous21Mon
22Tue3:3514.24:3114.810:020.110:472.61:587:48Third Quarter22Tue
23Wed4:3513.15:2215.010:511.211:552.11:587:49Third Quarter23Wed
24Thu5:4612.26:1915.311:492.21:597:49Third Quarter24Thu
25Fri7:0611.87:2015.81:081.412:543.11:597:49Waning Crescent25Fri
26Sat8:2512.18:2116.42:170.32:043.62:007:49Waning Crescent26Sat
27Sun9:3612.99:2117.13:21-0.93:113.62:007:48Waning Crescent27Sun
28Mon10:3613.810:1717.74:17-2.04:123.32:017:48New Moon28Mon
29Tue11:2914.611:0918.15:09-2.95:072.92:027:48New Moon29Tue
30Wed12:1715.25:56-3.45:572.42:027:47New Moon30Wed
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 5:56 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 99% 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 Full Moon (99% 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