Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 3h 00m at 12:05 pm (2.8 ft)
Next high tide : 6:27 pm (15.3 ft)
Sunset today : 8:54 pm
Sunrise tomorrow : 5:00 am
Moon phase : Third Quarter (53% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Apr 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:1612.68:5511.51:106.12:212.85:206:31First Quarter1Sat
2Sun8:4412.510:0212.22:476.03:342.55:176:33Waxing Gibbous2Sun
3Mon9:5313.110:4813.14:015.24:291.95:146:35Waxing Gibbous3Mon
4Tue10:4513.811:2414.04:524.15:111.35:126:37Waxing Gibbous4Tue
5Wed11:2714.611:5514.95:312.95:470.75:096:39Waxing Gibbous5Wed
6Thu12:0415.26:051.86:190.35:066:41Full Moon6Thu
7Fri12:2415.612:3815.66:370.96:490.25:046:43Full Moon7Fri
8Sat12:5216.21:1215.97:080.17:180.35:016:45Full Moon8Sat
9Sun1:2016.71:4515.87:39-0.47:470.64:586:47Full Moon9Sun
10Mon1:4816.92:2015.68:11-0.78:171.14:566:50Waning Gibbous10Mon
11Tue2:1816.92:5615.08:45-0.88:491.84:536:52Waning Gibbous11Tue
12Wed2:4916.63:3614.39:22-0.59:252.74:506:54Waning Gibbous12Wed
13Thu3:2516.14:2213.310:040.010:073.74:486:56Waning Gibbous13Thu
14Fri4:0715.45:2012.510:560.711:014.74:456:58Third Quarter14Fri
15Sat5:0214.56:3612.012:011.34:427:00Third Quarter15Sat
16Sun6:1613.88:0012.212:155.31:201.54:407:02Third Quarter16Sun
17Mon7:4313.79:1313.31:475.12:391.14:377:04Third Quarter17Mon
18Tue9:0514.310:1014.73:114.03:460.44:357:06Waning Crescent18Tue
19Wed10:1315.410:5816.24:162.24:41-0.44:327:09Waning Crescent19Wed
20Thu11:1016.411:4217.55:100.45:29-1.04:307:11Waning Crescent20Thu
21Fri12:0217.15:58-1.36:13-1.24:277:13New Moon21Fri
22Sat12:2318.512:4917.56:43-2.56:54-1.04:257:15New Moon22Sat
23Sun1:0218.91:3517.47:27-3.27:35-0.44:227:17New Moon23Sun
24Mon1:4118.92:2016.88:09-3.28:150.54:207:19Waxing Crescent24Mon
25Tue2:1918.33:0415.98:52-2.78:551.74:177:21Waxing Crescent25Tue
26Wed2:5817.33:5014.89:36-1.79:372.94:157:23Waxing Crescent26Wed
27Thu3:3916.04:4013.510:22-0.510:244.24:127:26Waxing Crescent27Thu
28Fri4:2414.65:3712.511:150.811:215.34:107:28First Quarter28Fri
29Sat5:1813.26:4611.812:162.04:077:30First Quarter29Sat
30Sun6:3012.18:0311.712:375.91:282.64:057:32First Quarter30Sun
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 3:16 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 neap phase. Tonight's moon is 53% 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 near their weekly minimum.

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 Third Quarter (53% illuminated). This places Petersburg, AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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