Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in Petersburg, AK.
Next low tide : 2:45 pm (4.1 ft)
Next high tide : in 3h 18m at 9:08 am (11.2 ft)
Sunset today : 9:40 pm
Sunrise tomorrow : 4:13 am
Moon phase : Waning Crescent (28% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - May 2062

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:3912.08:4011.012:526.51:522.95:028:35Third Quarter1Mon
2Tue8:0111.69:4311.72:246.33:032.95:008:37Third Quarter2Tue
3Wed9:2111.710:3012.83:455.34:022.64:578:39Waning Crescent3Wed
4Thu10:2712.411:0814.04:433.94:502.24:558:41Waning Crescent4Thu
5Fri11:2213.211:4315.35:302.25:321.84:538:43Waning Crescent5Fri
6Sat12:1014.16:110.56:111.64:518:45Waning Crescent6Sat
7Sun12:1816.512:5614.96:51-1.16:501.54:488:47New Moon7Sun
8Mon12:5417.51:4115.47:31-2.47:291.64:468:49New Moon8Mon
9Tue1:3118.22:2615.78:12-3.28:101.84:448:51New Moon9Tue
10Wed2:1118.63:1315.58:56-3.68:522.34:428:53Waxing Crescent10Wed
11Thu2:5418.54:0115.19:42-3.39:382.94:408:55Waxing Crescent11Thu
12Fri3:4017.94:5414.410:31-2.710:293.64:388:57Waxing Crescent12Fri
13Sat4:3116.85:5213.711:26-1.711:304.34:368:59Waxing Crescent13Sat
14Sun5:3115.56:5813.312:27-0.64:349:01First Quarter14Sun
15Mon6:4214.18:0813.312:444.71:340.34:329:03First Quarter15Mon
16Tue8:0313.29:1413.92:114.42:430.94:309:05First Quarter16Tue
17Wed9:2512.810:1014.63:333.53:461.34:289:07Waxing Gibbous17Wed
18Thu10:3613.010:5815.44:402.14:421.64:279:09Waxing Gibbous18Thu
19Fri11:3613.311:4016.15:340.85:311.94:259:11Waxing Gibbous19Fri
20Sat12:2813.76:20-0.36:142.34:239:13Waxing Gibbous20Sat
21Sun12:1816.51:1314.07:00-1.16:542.64:229:15Full Moon21Sun
22Mon12:5316.71:5514.17:38-1.67:323.04:209:16Full Moon22Mon
23Tue1:2816.72:3414.18:13-1.78:083.44:189:18Full Moon23Tue
24Wed2:0216.53:1113.98:49-1.58:443.84:179:20Full Moon24Wed
25Thu2:3616.23:4813.69:24-1.19:204.24:159:22Waning Gibbous25Thu
26Fri3:1115.74:2713.110:01-0.69:584.64:149:23Waning Gibbous26Fri
27Sat3:4815.05:0812.610:390.010:395.04:139:25Waning Gibbous27Sat
28Sun4:2814.25:5212.211:200.711:275.34:119:26Waning Gibbous28Sun
29Mon5:1313.36:4212.012:051.34:109:28Third Quarter29Mon
30Tue6:0712.47:3512.112:265.412:551.94:099:29Third Quarter30Tue
31Wed7:1211.78:2912.61:355.21:492.44:089:31Third Quarter31Wed
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 11:56 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 transitional phase. Tonight's moon is 28% 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 Waning Crescent (28% 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