Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 1h 31m at 1:05 pm (0.9 ft)
Next high tide : 7:30 pm (14.6 ft)
Sunset today : 9:48 pm
Sunrise tomorrow : 3:58 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Dec 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:4317.210:3014.43:252.64:250.08:043:17Waxing Gibbous1Fri
2Sat10:3018.311:2715.14:192.85:15-1.58:053:16Waxing Gibbous2Sat
3Sun11:1519.05:092.96:02-2.68:073:16Full Moon3Sun
4Mon12:1815.611:59 AM19.35:573.16:47-3.18:083:15Full Moon4Mon
5Tue1:0615.912:4319.26:433.37:31-3.08:103:14Full Moon5Tue
6Wed1:5215.91:2718.87:283.68:15-2.68:123:13Waning Gibbous6Wed
7Thu2:3715.62:1117.98:134.08:58-1.88:133:13Waning Gibbous7Thu
8Fri3:2115.12:5416.88:584.59:42-0.78:143:12Waning Gibbous8Fri
9Sat4:0714.53:3915.59:465.010:270.48:163:12Waning Gibbous9Sat
10Sun4:5313.94:2814.110:405.411:141.58:173:12Third Quarter10Sun
11Mon5:4313.65:2512.811:435.78:183:11Third Quarter11Mon
12Tue6:3513.46:3211.712:042.612:555.58:193:11Third Quarter12Tue
13Wed7:2813.67:4911.212:573.52:084.98:203:11Third Quarter13Wed
14Thu8:1814.09:0311.31:544.33:114.08:213:11Waning Crescent14Thu
15Fri9:0414.510:0611.82:494.84:032.98:223:11Waning Crescent15Fri
16Sat9:4715.210:5912.53:425.04:471.88:233:11Waning Crescent16Sat
17Sun10:2815.911:4413.24:295.15:270.78:243:11Waning Crescent17Sun
18Mon11:0916.65:145.06:05-0.28:253:11New Moon18Mon
19Tue12:2613.911:48 AM17.25:554.86:43-0.98:263:12New Moon19Tue
20Wed1:0614.512:2917.76:354.57:21-1.58:263:12New Moon20Wed
21Thu1:4614.81:0918.07:164.38:00-1.88:273:12New Moon21Thu
22Fri2:2515.11:5118.07:574.18:39-1.98:273:13Waxing Crescent22Fri
23Sat3:0615.22:3517.68:413.99:20-1.68:283:14Waxing Crescent23Sat
24Sun3:4815.33:2116.89:303.910:03-1.08:283:14Waxing Crescent24Sun
25Mon4:3315.34:1315.710:243.810:49-0.18:283:15Waxing Crescent25Mon
26Tue5:2115.45:1314.311:273.711:401.18:283:16First Quarter26Tue
27Wed6:1315.66:2413.112:383.38:283:17First Quarter27Wed
28Thu7:1015.97:4612.412:362.41:522.58:283:18First Quarter28Thu
29Fri8:0916.39:0912.41:393.53:041.48:283:19Waxing Gibbous29Fri
30Sat9:0816.810:2313.02:474.34:080.28:283:20Waxing Gibbous30Sat
31Sun10:0517.311:2413.83:544.75:04-0.78:283:21Waxing Gibbous31Sun
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 4:17 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 neap phase. Tonight's moon is 49% 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 minimum.

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 First Quarter (49% illuminated). This places Petersburg, AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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