Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Petersburg, AK.
Next low tide : 12:14 pm (-0.6 ft)
Next high tide : in 2h 40m at 5:41 am (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 - Mar 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:1917.23:5114.59:500.19:442.26:425:25Waxing Crescent1Sun
2Mon3:5516.84:4113.110:380.710:253.56:405:27First Quarter2Mon
3Tue4:4016.05:4711.811:381.411:194.96:375:29First Quarter3Tue
4Wed5:4015.27:1811.112:571.96:345:31First Quarter4Wed
5Thu7:0414.58:5811.612:395.92:271.76:325:34First Quarter5Thu
6Fri8:3914.810:1212.92:256.03:450.76:295:36Waxing Gibbous6Fri
7Sat9:5715.711:0514.53:544.84:45-0.46:265:38Waxing Gibbous7Sat
8Sun11:5816.85:573.16:33-1.47:246:40Waxing Gibbous8Sun
9Mon12:4816.012:5017.66:491.47:15-2.07:216:42Full Moon9Mon
10Tue1:2717.21:3618.07:330.07:54-2.17:186:44Full Moon10Tue
11Wed2:0318.12:1918.08:15-1.08:30-1.77:166:47Full Moon11Wed
12Thu2:3818.53:0017.48:55-1.59:05-0.97:136:49Full Moon12Thu
13Fri3:1118.43:3916.59:33-1.59:390.37:106:51Waning Gibbous13Fri
14Sat3:4317.94:1915.310:11-0.910:131.77:086:53Waning Gibbous14Sat
15Sun4:1617.04:5913.910:510.110:473.17:056:55Waning Gibbous15Sun
16Mon4:4915.95:4412.411:331.311:244.67:026:57Third Quarter16Mon
17Tue5:2714.66:4211.012:252.57:006:59Third Quarter17Tue
18Wed6:1713.48:0710.212:105.81:353.56:577:02Third Quarter18Wed
19Thu7:2912.49:5210.41:236.83:073.86:547:04Third Quarter19Thu
20Fri9:0512.211:0111.33:116.94:283.36:527:06Third Quarter20Fri
21Sat10:2412.811:4412.44:376.15:222.46:497:08Waning Crescent21Sat
22Sun11:2113.75:334.86:021.56:467:10Waning Crescent22Sun
23Mon12:1713.512:0514.66:143.36:350.86:437:12Waning Crescent23Mon
24Tue12:4714.712:4515.56:511.97:060.26:417:14New Moon24Tue
25Wed1:1515.81:2316.17:250.67:36-0.16:387:16New Moon25Wed
26Thu1:4416.82:0016.57:59-0.58:060.06:357:18New Moon26Thu
27Fri2:1317.52:3816.58:34-1.48:380.36:327:21New Moon27Fri
28Sat2:4317.93:1716.29:10-1.89:110.96:307:23Waxing Crescent28Sat
29Sun3:1618.03:5815.59:50-1.89:471.86:277:25Waxing Crescent29Sun
30Mon3:5217.74:4414.410:33-1.410:272.86:247:27Waxing Crescent30Mon
31Tue4:3417.05:3813.211:24-0.511:154.06:227:29Waxing Crescent31Tue
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 8:57 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 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