Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 50m at 7:11 pm (2.9 ft)
Next high tide (tomorrow) : 1:13 am (18.5 ft)
Sunset today : 9:36 pm
Sunrise tomorrow : 4:19 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - May 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:0818.71:5216.67:41-3.37:460.55:018:36New Moon1Tue
2Wed1:5019.02:3916.58:25-3.78:291.04:588:38New Moon2Wed
3Thu2:3218.73:2416.19:09-3.49:121.64:568:40Waxing Crescent3Thu
4Fri3:1418.04:0915.49:52-2.79:552.44:548:42Waxing Crescent4Fri
5Sat3:5717.04:5514.510:37-1.710:413.34:528:44Waxing Crescent5Sat
6Sun4:4115.65:4413.611:24-0.411:324.14:498:46Waxing Crescent6Sun
7Mon5:2914.26:3712.812:150.84:478:48First Quarter7Mon
8Tue6:2612.87:3812.412:334.81:111.94:458:51First Quarter8Tue
9Wed7:3511.88:4112.41:465.02:142.74:438:53First Quarter9Wed
10Thu8:5311.49:3912.83:054.73:163.14:418:55First Quarter10Thu
11Fri10:0411.510:2713.54:123.94:133.24:398:57Waxing Gibbous11Fri
12Sat11:0312.011:0914.35:052.85:023.14:378:59Waxing Gibbous12Sat
13Sun11:5212.711:4715.15:491.65:452.94:359:01Waxing Gibbous13Sun
14Mon12:3513.36:270.56:242.84:339:02Waxing Gibbous14Mon
15Tue12:2315.81:1513.97:04-0.47:012.64:319:04Full Moon15Tue
16Wed12:5816.41:5414.47:39-1.27:372.54:299:06Full Moon16Wed
17Thu1:3416.92:3214.78:14-1.88:142.54:279:08Full Moon17Thu
18Fri2:1017.23:1114.88:51-2.18:522.64:269:10Full Moon18Fri
19Sat2:4817.23:5214.79:30-2.19:332.74:249:12Waning Gibbous19Sat
20Sun3:2916.94:3514.510:11-1.910:183.04:229:14Waning Gibbous20Sun
21Mon4:1316.35:2214.310:55-1.411:093.34:219:16Waning Gibbous21Mon
22Tue5:0315.46:1514.111:45-0.74:199:17Third Quarter22Tue
23Wed6:0214.47:1314.112:103.412:400.14:189:19Third Quarter23Wed
24Thu7:1113.48:1514.51:213.31:411.04:169:21Third Quarter24Thu
25Fri8:3012.89:1715.12:382.72:471.64:159:22Third Quarter25Fri
26Sat9:4812.910:1516.03:511.53:531.94:139:24Waning Crescent26Sat
27Sun10:5813.411:0816.84:550.14:532.14:129:26Waning Crescent27Sun
28Mon12:0014.15:50-1.25:492.14:119:27Waning Crescent28Mon
29Tue12:5414.86:41-2.36:402.04:099:29New Moon29Tue
30Wed12:4518.01:4315.37:27-3.07:272.04:089:30New Moon30Wed
31Thu1:3018.12:2915.58:11-3.28:122.14:079:32New Moon31Thu
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 10:12 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 1% 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 (1% 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