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 1h 25m 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 - Feb 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:2916.14:5513.011:022.110:503.07:484:22First Quarter1Sun
2Mon5:1215.86:0111.812:032.47:464:24First Quarter2Mon
3Tue6:0815.47:2911.11:202.47:444:26First Quarter3Tue
4Wed7:2315.29:0811.412:525.62:461.87:424:29Waxing Gibbous4Wed
5Thu8:4715.610:2612.62:256.04:010.67:404:31Waxing Gibbous5Thu
6Fri10:0216.611:2414.13:545.45:02-0.97:384:33Waxing Gibbous6Fri
7Sat11:0417.85:024.15:53-2.17:364:35Waxing Gibbous7Sat
8Sun12:1115.611:58 AM18.75:572.66:37-3.07:334:38Full Moon8Sun
9Mon12:5316.912:4719.26:461.37:18-3.47:314:40Full Moon9Mon
10Tue1:3317.81:3319.17:310.37:57-3.17:294:42Full Moon10Tue
11Wed2:1018.32:1618.58:15-0.38:35-2.37:274:44Waning Gibbous11Wed
12Thu2:4618.42:5917.38:58-0.39:11-1.07:244:47Waning Gibbous12Thu
13Fri3:2218.03:4115.89:410.19:460.67:224:49Waning Gibbous13Fri
14Sat3:5717.24:2514.110:250.910:232.37:204:51Waning Gibbous14Sat
15Sun4:3316.15:1512.311:141.911:024.17:174:54Third Quarter15Sun
16Mon5:1515.06:2110.912:133.07:154:56Third Quarter16Mon
17Tue6:0713.87:5710.21:323.67:124:58Third Quarter17Tue
18Wed7:2213.19:4110.51:056.83:033.67:105:00Third Quarter18Wed
19Thu8:5013.110:4611.42:477.04:152.97:085:03Waning Crescent19Thu
20Fri10:0013.811:2812.54:076.45:051.97:055:05Waning Crescent20Fri
21Sat10:5214.75:015.45:430.97:035:07Waning Crescent21Sat
22Sun12:0113.511:34 AM15.65:424.26:150.17:005:09Waning Crescent22Sun
23Mon12:3014.512:1116.36:183.16:44-0.66:585:12New Moon23Mon
24Tue12:5815.412:4616.86:522.07:12-0.96:555:14New Moon24Tue
25Wed1:2416.21:2017.07:251.17:40-0.96:535:16New Moon25Wed
26Thu1:5116.81:5516.97:580.48:08-0.66:505:18New Moon26Thu
27Fri2:1917.22:3016.48:320.08:370.06:475:20Waxing Crescent27Fri
28Sat2:4717.43:0915.69:09-0.19:091.06:455:23Waxing Crescent28Sat
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