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 6h 28m at 7:13 am (-3.1 ft)
Next high tide : 1:34 pm (14.7 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 - Aug 2067

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:1713.56:3915.812:200.512:172.14:539:03Third Quarter1Mon
2Tue7:2512.07:3814.81:241.31:133.84:549:01Third Quarter2Tue
3Wed8:4811.18:4914.22:381.82:255.04:568:59Third Quarter3Wed
4Thu10:1611.110:0214.13:561.83:485.54:588:57Waning Crescent4Thu
5Fri11:2811.711:0714.55:041.45:035.35:008:54Waning Crescent5Fri
6Sat12:2012.65:580.76:004.65:028:52Waning Crescent6Sat
7Sun1:0013.46:420.16:443.85:048:50Waning Crescent7Sun
8Mon12:4215.51:3314.17:18-0.57:223.15:068:48New Moon8Mon
9Tue1:1916.02:0314.77:51-0.97:562.45:088:45New Moon9Tue
10Wed1:5416.22:3215.28:21-1.08:291.85:108:43New Moon10Wed
11Thu2:2716.23:0015.68:50-1.09:011.45:138:41New Moon11Thu
12Fri2:5915.93:2715.89:18-0.69:331.25:158:38Waxing Crescent12Fri
13Sat3:3215.53:5515.89:460.010:061.25:178:36Waxing Crescent13Sat
14Sun4:0514.74:2415.710:150.810:421.45:198:33Waxing Crescent14Sun
15Mon4:4213.84:5615.410:461.811:231.85:218:31Waxing Crescent15Mon
16Tue5:2512.85:3415.011:222.95:238:29First Quarter16Tue
17Wed6:1911.76:2314.612:142.212:074.05:258:26First Quarter17Wed
18Thu7:3410.97:2914.31:202.51:095.05:278:24First Quarter18Thu
19Fri9:0810.88:4914.42:422.32:345.55:298:21Waxing Gibbous19Fri
20Sat10:3111.710:0815.24:041.54:035.05:318:19Waxing Gibbous20Sat
21Sun11:3313.211:1516.45:100.25:143.75:338:16Waxing Gibbous21Sun
22Mon12:2314.86:04-1.26:122.15:358:13Waxing Gibbous22Mon
23Tue12:1217.71:0716.36:51-2.37:030.55:378:11Full Moon23Tue
24Wed1:0418.61:4817.67:34-3.07:51-0.85:398:08Full Moon24Wed
25Thu1:5219.02:2818.58:15-3.18:37-1.75:418:06Full Moon25Thu
26Fri2:3918.83:0818.98:55-2.69:22-2.15:438:03Waning Gibbous26Fri
27Sat3:2518.13:4718.79:35-1.610:08-1.85:458:01Waning Gibbous27Sat
28Sun4:1116.84:2718.010:15-0.210:55-1.05:477:58Waning Gibbous28Sun
29Mon4:5915.25:1016.910:571.511:470.15:497:55Third Quarter29Mon
30Tue5:5213.55:5715.511:433.25:517:53Third Quarter30Tue
31Wed6:5612.06:5614.212:471.412:384.85:537:50Third 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 10:23 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 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