Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 2h 14m at 12:14 pm (-0.6 ft)
Next high tide : 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 2037

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:5415.74:5714.110:33-0.810:453.54:049:47Waning Gibbous1Wed
2Thu4:3314.75:3613.711:100.011:303.84:059:46Waning Gibbous2Thu
3Fri5:1513.66:1713.311:491.04:069:45Third Quarter3Fri
4Sat6:0212.57:0213.112:214.112:312.04:079:45Third Quarter4Sat
5Sun6:5911.67:5313.01:204.21:182.94:089:44Third Quarter5Sun
6Mon8:0610.98:4613.22:264.02:143.64:109:43Third Quarter6Mon
7Tue9:2110.89:4013.83:333.33:154.14:119:42Waning Crescent7Tue
8Wed10:3111.210:3214.54:332.34:164.24:129:41Waning Crescent8Wed
9Thu11:3112.011:2115.45:261.15:124.04:139:40Waning Crescent9Thu
10Fri12:2413.06:13-0.26:033.64:159:39Waning Crescent10Fri
11Sat12:0716.41:1114.06:56-1.46:513.14:169:38New Moon11Sat
12Sun12:5317.31:5514.97:39-2.57:362.54:189:37New Moon12Sun
13Mon1:3818.02:3815.68:21-3.28:221.94:199:35New Moon13Mon
14Tue2:2318.33:2116.19:03-3.69:081.54:219:34Waxing Crescent14Tue
15Wed3:0918.34:0516.39:46-3.59:561.44:229:33Waxing Crescent15Wed
16Thu3:5717.74:4916.410:31-2.910:471.44:249:31Waxing Crescent16Thu
17Fri4:4716.75:3716.211:17-1.911:441.64:259:30Waxing Crescent17Fri
18Sat5:4215.36:2715.912:06-0.64:279:28First Quarter18Sat
19Sun6:4513.87:2315.612:471.81:010.84:299:27First Quarter19Sun
20Mon7:5812.68:2515.41:581.82:022.24:319:25First Quarter20Mon
21Tue9:2012.19:2915.43:141.53:103.24:329:23Waxing Gibbous21Tue
22Wed10:3912.210:3115.64:260.94:203.74:349:22Waxing Gibbous22Wed
23Thu11:4612.911:2816.05:280.15:233.74:369:20Waxing Gibbous23Thu
24Fri12:4013.66:21-0.76:183.54:389:18Waxing Gibbous24Fri
25Sat12:1816.41:2614.27:06-1.27:063.14:409:16Full Moon25Sat
26Sun1:0316.72:0714.77:47-1.67:482.84:419:14Full Moon26Sun
27Mon1:4416.82:4315.08:24-1.78:272.54:439:13Full Moon27Mon
28Tue2:2216.73:1715.18:58-1.69:042.34:459:11Full Moon28Tue
29Wed2:5816.53:4915.09:31-1.39:402.34:479:09Waning Gibbous29Wed
30Thu3:3315.94:2114.810:03-0.710:172.54:499:07Waning Gibbous30Thu
31Fri4:0815.24:5314.510:340.010:552.74:519:04Waning Gibbous31Fri
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 3:26 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