Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 5h 08m at 10:23 pm (3.4 ft)
Next high tide (tomorrow) : 4:12 am (15.0 ft)
Sunset today : 9:46 pm
Sunrise tomorrow : 4:06 am
Moon phase : Waning Gibbous (87% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - May 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:1316.62:0014.87:48-1.27:472.15:028:35Full Moon1Sun
2Mon1:4417.12:3714.88:22-1.78:202.45:008:37Full Moon2Mon
3Tue2:1617.33:1714.68:58-2.08:562.94:578:39Waning Gibbous3Tue
4Wed2:5217.33:5914.29:37-1.99:343.44:558:41Waning Gibbous4Wed
5Thu3:3116.94:4613.510:20-1.510:184.04:538:43Waning Gibbous5Thu
6Fri4:1516.35:4012.911:10-0.811:114.74:518:45Waning Gibbous6Fri
7Sat5:0815.36:4412.512:07-0.14:498:47Third Quarter7Sat
8Sun6:1314.27:5512.612:195.11:140.64:468:49Third Quarter8Sun
9Mon7:3313.49:0313.31:434.92:250.94:448:51Third Quarter9Mon
10Tue8:5713.210:0214.53:094.03:321.04:428:53Waning Crescent10Tue
11Wed10:1313.510:5215.74:212.44:311.04:408:55Waning Crescent11Wed
12Thu11:1814.111:3716.85:190.65:231.14:388:57Waning Crescent12Thu
13Fri12:1514.76:10-1.06:101.34:368:59Waning Crescent13Fri
14Sat12:1917.61:0615.16:56-2.36:551.64:349:01New Moon14Sat
15Sun12:5918.11:5315.37:39-3.07:372.04:329:03New Moon15Sun
16Mon1:3918.12:3815.28:21-3.18:182.54:309:05New Moon16Mon
17Tue2:1817.83:2114.89:02-2.88:583.14:289:07Waxing Crescent17Tue
18Wed2:5717.14:0414.29:44-2.19:393.84:279:09Waxing Crescent18Wed
19Thu3:3716.24:4813.510:26-1.110:224.54:259:11Waxing Crescent19Thu
20Fri4:1915.15:3412.711:11-0.111:105.14:239:13Waxing Crescent20Fri
21Sat5:0413.96:2612.111:590.94:229:14First Quarter21Sat
22Sun5:5712.77:2211.912:075.512:521.84:209:16First Quarter22Sun
23Mon7:0111.78:2112.01:185.61:492.54:189:18First Quarter23Mon
24Tue8:1511.19:1412.52:365.22:472.94:179:20First Quarter24Tue
25Wed9:2911.010:0013.23:454.33:413.24:159:21Waxing Gibbous25Wed
26Thu10:3211.410:4114.14:403.14:303.34:149:23Waxing Gibbous26Thu
27Fri11:2712.011:1915.05:261.85:153.34:129:25Waxing Gibbous27Fri
28Sat12:1512.76:070.65:573.34:119:26Waxing Gibbous28Sat
29Sun1:0013.46:46-0.66:383.34:109:28Full Moon29Sun
30Mon12:3416.51:4313.97:24-1.57:183.34:099:29Full Moon30Mon
31Tue1:1417.12:2614.38:04-2.27:593.24:079:31Full Moon31Tue
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 1:17 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 spring phase. Tonight's moon is 87% 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 maximum.

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 (87% illuminated). This places Petersburg, AK in a spring tide cycle, so tidal ranges are near their weekly maximum 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