Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 4h 22m at 12:50 am (2.9 ft)
Next high tide : 6:37 am (12.3 ft)
Sunset today : 9:43 pm
Sunrise tomorrow : 4:09 am
Moon phase : Third Quarter (60% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Nov 1982

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:3718.75:320.76:07-2.26:013:08Full Moon1Mon
2Tue12:1517.112:1319.26:090.96:47-2.86:043:06Full Moon2Tue
3Wed12:5817.012:5119.26:481.47:29-2.86:063:04Waning Gibbous3Wed
4Thu1:4416.51:3218.77:302.28:16-2.26:083:02Waning Gibbous4Thu
5Fri2:3415.72:1817.78:163.29:07-1.36:103:00Waning Gibbous5Fri
6Sat3:3014.73:1216.49:104.310:07-0.26:122:58Third Quarter6Sat
7Sun4:3614.04:2015.010:195.211:170.86:152:55Third Quarter7Sun
8Mon5:5313.75:4414.011:485.56:172:53Third Quarter8Mon
9Tue7:1014.17:1313.812:341.41:204.86:192:51Third Quarter9Tue
10Wed8:1415.18:2814.21:451.52:343.46:212:49Waning Crescent10Wed
11Thu9:0516.19:2814.92:461.43:301.96:232:47Waning Crescent11Thu
12Fri9:4817.010:1915.43:361.24:160.56:262:45Waning Crescent12Fri
13Sat10:2617.611:0415.84:191.34:57-0.56:282:44New Moon13Sat
14Sun11:0118.011:4515.94:581.55:34-1.26:302:42New Moon14Sun
15Mon11:3418.15:351.96:10-1.56:322:40New Moon15Mon
16Tue12:2315.912:0617.96:092.46:44-1.46:342:38New Moon16Tue
17Wed1:0115.612:3717.56:433.17:18-1.06:362:36Waxing Crescent17Wed
18Thu1:3715.11:0916.87:173.87:52-0.46:382:35Waxing Crescent18Thu
19Fri2:1514.41:4316.07:534.68:290.46:402:33Waxing Crescent19Fri
20Sat2:5613.72:2015.08:315.39:101.36:422:32Waxing Crescent20Sat
21Sun3:4213.03:0314.09:176.09:572.26:452:30First Quarter21Sun
22Mon4:3712.53:5713.010:176.510:542.96:472:29First Quarter22Mon
23Tue5:4212.45:0812.211:356.611:593.36:492:27First Quarter23Tue
24Wed6:4712.86:2912.012:575.96:502:26First Quarter24Wed
25Thu7:4213.77:4412.41:053.32:044.76:522:24Waxing Gibbous25Thu
26Fri8:2814.88:4613.32:033.12:573.06:542:23Waxing Gibbous26Fri
27Sat9:0916.19:3914.32:532.73:421.36:562:22Waxing Gibbous27Sat
28Sun9:4817.310:2815.33:382.44:24-0.46:582:21Waxing Gibbous28Sun
29Mon10:2818.511:1516.24:212.15:06-1.97:002:20Full Moon29Mon
30Tue11:0819.35:041.95:49-3.07:022:19Full Moon30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9451439)

Common Questions About Petersburg, AK Tides

Show All
What time does the tide turn (slack tide) in Petersburg, AK today?

Slack tide in Petersburg, AK is approximately 3:43 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 neap phase. Tonight's moon is 60% 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 Third Quarter (60% 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