Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Petersburg, AK.
Next low tide (tomorrow) : 12:51 am (2.9 ft)
Next high tide : in 6h 08m at 6:38 pm (14.9 ft)
Sunset today : 9:48 pm
Sunrise tomorrow : 3:58 am
Moon phase : First Quarter (39% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Jul 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:5514.06:35-2.56:293.44:049:47New Moon1Tue
2Wed12:3318.11:4814.97:26-3.47:242.74:059:46New Moon2Wed
3Thu1:2718.62:3615.68:15-3.98:162.24:069:45New Moon3Thu
4Fri2:1818.73:2116.09:01-4.09:061.84:079:45Waxing Crescent4Fri
5Sat3:0718.34:0516.19:45-3.69:561.64:089:44Waxing Crescent5Sat
6Sun3:5517.44:4716.010:28-2.710:461.74:099:43Waxing Crescent6Sun
7Mon4:4216.15:2915.711:10-1.511:382.04:119:42Waxing Crescent7Mon
8Tue5:3114.46:1215.211:530.14:129:41First Quarter8Tue
9Wed6:2512.86:5714.612:332.412:361.74:139:40First Quarter9Wed
10Thu7:2711.47:4514.11:352.71:253.24:159:39First Quarter10Thu
11Fri8:4310.58:4013.72:432.82:214.64:169:38First Quarter11Fri
12Sat10:0610.39:3913.73:532.53:275.44:189:37Waxing Gibbous12Sat
13Sun11:1910.710:3713.94:572.04:365.74:199:35Waxing Gibbous13Sun
14Mon12:1611.55:511.35:355.54:219:34Waxing Gibbous14Mon
15Tue1:0012.26:360.66:255.04:229:33Waxing Gibbous15Tue
16Wed12:1715.01:3812.97:15-0.27:074.44:249:31Full Moon16Wed
17Thu12:5915.62:1213.67:51-0.87:463.84:259:30Full Moon17Thu
18Fri1:3816.12:4414.18:24-1.38:223.24:279:28Full Moon18Fri
19Sat2:1516.43:1614.68:55-1.78:582.74:299:27Full Moon19Sat
20Sun2:5116.43:4615.09:26-1.79:352.34:309:25Waning Gibbous20Sun
21Mon3:2716.24:1715.39:57-1.510:142.04:329:23Waning Gibbous21Mon
22Tue4:0515.64:4915.410:29-0.910:561.84:349:22Waning Gibbous22Tue
23Wed4:4714.75:2415.511:040.111:441.74:369:20Waning Gibbous23Wed
24Thu5:3513.56:0515.511:421.34:389:18Third Quarter24Thu
25Fri6:3312.36:5315.312:401.712:282.64:399:16Third Quarter25Fri
26Sat7:4611.47:5415.21:471.71:264.04:419:14Third Quarter26Sat
27Sun9:1611.09:0615.33:041.32:414.94:439:12Waning Crescent27Sun
28Mon10:4311.610:2115.94:220.54:075.14:459:11Waning Crescent28Mon
29Tue11:5312.711:2916.75:30-0.75:234.54:479:09Waning Crescent29Tue
30Wed12:4814.06:27-1.86:263.54:499:06New Moon30Wed
31Thu12:2817.61:3615.17:16-2.87:192.34:519:04New 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 9:44 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 transitional phase. Tonight's moon is 39% 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 First Quarter (39% 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