Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 3h 38m at 11:06 pm (3.3 ft)
Next high tide (tomorrow) : 4:53 am (14.2 ft)
Sunset today : 9:45 pm
Sunrise tomorrow : 4:07 am
Moon phase : Waning Gibbous (79% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Jun 1986

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:3812.010:1714.43:503.13:522.34:079:31Waning Crescent1Sun
2Mon10:4512.011:0114.94:502.04:452.84:069:33Waning Crescent2Mon
3Tue11:4212.311:4015.35:391.05:313.24:059:34Waning Crescent3Tue
4Wed12:3012.76:210.16:123.54:049:35Waning Crescent4Wed
5Thu12:1515.61:1213.16:59-0.66:503.74:039:37New Moon5Thu
6Fri12:4915.91:5113.47:35-1.07:263.94:029:38New Moon6Fri
7Sat1:2316.02:2813.68:10-1.28:014.04:019:39New Moon7Sat
8Sun1:5716.03:0413.68:45-1.38:364.14:019:40New Moon8Sun
9Mon2:3215.83:4013.59:20-1.19:114.34:009:41Waxing Crescent9Mon
10Tue3:0715.54:1813.29:56-0.99:484.53:599:42Waxing Crescent10Tue
11Wed3:4415.14:5813.010:34-0.510:294.73:599:43Waxing Crescent11Wed
12Thu4:2314.55:4012.811:14-0.111:174.83:599:44Waxing Crescent12Thu
13Fri5:0813.76:2612.811:580.43:589:45First Quarter13Fri
14Sat6:0212.97:1613.112:144.812:461.03:589:45First Quarter14Sat
15Sun7:0812.28:0813.71:214.41:391.63:589:46First Quarter15Sun
16Mon8:2311.89:0114.52:333.52:372.23:589:46First Quarter16Mon
17Tue9:4011.99:5415.53:422.23:372.63:579:47Waxing Gibbous17Tue
18Wed10:5112.510:4616.64:440.64:372.83:579:47Waxing Gibbous18Wed
19Thu11:5513.411:3717.65:40-1.05:342.93:579:48Waxing Gibbous19Thu
20Fri12:5214.26:33-2.46:282.83:589:48Full Moon20Fri
21Sat12:2818.41:4614.97:23-3.47:212.63:589:48Full Moon21Sat
22Sun1:2018.92:3715.48:12-4.08:122.43:589:49Full Moon22Sun
23Mon2:1119.03:2615.69:00-4.19:032.33:589:49Waning Gibbous23Mon
24Tue3:0118.64:1415.59:48-3.79:552.43:599:49Waning Gibbous24Tue
25Wed3:5217.75:0215.310:36-2.810:492.63:599:49Waning Gibbous25Wed
26Thu4:4316.45:5114.911:24-1.711:472.94:009:48Waning Gibbous26Thu
27Fri5:3614.96:4114.512:12-0.44:009:48Third Quarter27Fri
28Sat6:3413.37:3314.212:493.11:031.14:019:48Third Quarter28Sat
29Sun7:4011.98:2714.01:573.11:562.44:029:48Third Quarter29Sun
30Mon8:5411.19:1914.03:052.82:523.64:039:47Third Quarter30Mon
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 1:59 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 79% 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 Waning Gibbous (79% 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