Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 5h 08m at 11:47 pm (2.7 ft)
Next high tide (tomorrow) : 5:41 am (14.9 ft)
Sunset today : 9:48 pm
Sunrise tomorrow : 3:58 am
Moon phase : Waxing Crescent (29% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Jul 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:0312.78:4015.02:072.42:151.64:049:46First Quarter1Tue
2Wed9:2112.19:4015.13:212.03:202.64:059:46Waxing Gibbous2Wed
3Thu10:3612.210:3715.44:301.34:233.14:069:45Waxing Gibbous3Thu
4Fri11:4012.611:2715.75:280.55:213.44:089:44Waxing Gibbous4Fri
5Sat12:3313.26:18-0.26:113.44:099:44Waxing Gibbous5Sat
6Sun12:1316.01:1813.77:00-0.86:563.34:109:43Full Moon6Sun
7Mon12:5416.21:5814.17:39-1.27:373.14:119:42Full Moon7Mon
8Tue1:3216.42:3414.48:15-1.48:153.04:129:41Full Moon8Tue
9Wed2:0816.43:0914.58:49-1.48:512.94:149:40Full Moon9Wed
10Thu2:4416.23:4214.59:22-1.39:272.94:159:39Waning Gibbous10Thu
11Fri3:1815.94:1514.49:54-0.910:033.04:179:38Waning Gibbous11Fri
12Sat3:5415.34:4914.210:27-0.410:423.24:189:36Waning Gibbous12Sat
13Sun4:3014.55:2413.911:000.211:243.44:199:35Waning Gibbous13Sun
14Mon5:1113.66:0313.711:361.04:219:34Third Quarter14Mon
15Tue5:5812.76:4713.612:133.612:181.94:239:32Third Quarter15Tue
16Wed6:5611.87:3813.71:113.61:062.84:249:31Third Quarter16Wed
17Thu8:0711.38:3614.12:183.22:063.54:269:29Third Quarter17Thu
18Fri9:2611.49:3814.73:282.43:143.94:289:28Waning Crescent18Fri
19Sat10:4012.010:3715.74:341.24:233.84:299:26Waning Crescent19Sat
20Sun11:4313.111:3416.95:32-0.35:263.34:319:25Waning Crescent20Sun
21Mon12:3814.36:24-1.76:222.64:339:23Waning Crescent21Mon
22Tue12:2717.91:2815.57:13-3.07:141.74:349:21New Moon22Tue
23Wed1:1818.82:1516.47:59-3.98:041.04:369:19New Moon23Wed
24Thu2:0819.23:0117.18:44-4.38:530.44:389:18New Moon24Thu
25Fri2:5619.13:4517.49:29-4.19:420.24:409:16Waxing Crescent25Fri
26Sat3:4518.54:3017.310:14-3.310:330.44:429:14Waxing Crescent26Sat
27Sun4:3517.35:1616.910:59-2.111:270.84:449:12Waxing Crescent27Sun
28Mon5:2715.76:0516.211:47-0.64:469:10First Quarter28Mon
29Tue6:2614.06:5715.512:261.412:381.14:489:08First Quarter29Tue
30Wed7:3412.57:5614.81:331.91:362.74:499:06First Quarter30Wed
31Thu8:5411.79:0114.42:472.12:443.84:519:04First Quarter31Thu
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 2:44 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 transitional phase. Tonight's moon is 29% 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 Waxing Crescent (29% 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