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 2h 14m at 10:13 am (-1.0 ft)
Next high tide : 4:38 pm (14.0 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 - Jan 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:1814.08:2310.612:514.92:254.08:283:23Third Quarter1Sun
2Mon8:1314.39:4211.01:535.73:303.18:273:24Waning Crescent2Mon
3Tue9:1014.910:4511.93:016.14:252.08:273:25Waning Crescent3Tue
4Wed10:0315.611:3612.94:036.05:130.88:263:27Waning Crescent4Wed
5Thu10:5316.64:585.55:56-0.48:263:28Waning Crescent5Thu
6Fri12:1913.911:40 AM17.55:464.96:36-1.58:253:30New Moon6Fri
7Sat1:0014.812:2618.36:314.17:16-2.38:253:31New Moon7Sat
8Sun1:3915.61:1018.87:143.37:55-2.88:243:33New Moon8Sun
9Mon2:1816.21:5418.87:592.78:34-2.98:233:34Waxing Crescent9Mon
10Tue2:5616.72:3918.38:442.29:13-2.48:223:36Waxing Crescent10Tue
11Wed3:3616.93:2617.39:331.99:54-1.58:213:38Waxing Crescent11Wed
12Thu4:1717.04:1715.910:251.910:37-0.18:203:40First Quarter12Thu
13Fri5:0216.85:1414.211:242.011:231.68:193:42First Quarter13Fri
14Sat5:5116.56:2412.612:312.18:183:43First Quarter14Sat
15Sun6:4816.17:4911.712:173.31:462.08:173:45First Quarter15Sun
16Mon7:5415.99:2111.71:254.83:041.58:153:47Waxing Gibbous16Mon
17Tue9:0515.910:3912.52:445.74:140.78:143:49Waxing Gibbous17Tue
18Wed10:1116.311:3813.44:035.75:12-0.18:133:51Waxing Gibbous18Wed
19Thu11:0816.85:075.36:01-0.98:113:53Waxing Gibbous19Thu
20Fri12:2514.311:58 AM17.25:594.66:43-1.48:103:55Full Moon20Fri
21Sat1:0515.012:4117.56:433.97:21-1.78:083:57Full Moon21Sat
22Sun1:4015.51:2017.57:233.47:55-1.68:074:00Full Moon22Sun
23Mon2:1215.71:5517.28:002.98:27-1.38:054:02Full Moon23Mon
24Tue2:4215.92:3016.68:352.78:57-0.78:034:04Waning Gibbous24Tue
25Wed3:1115.83:0315.79:102.79:260.18:024:06Waning Gibbous25Wed
26Thu3:4015.73:3814.69:462.89:551.28:004:08Waning Gibbous26Thu
27Fri4:0915.44:1513.410:243.110:252.57:584:10Waning Gibbous27Fri
28Sat4:4015.04:5912.111:083.410:573.87:564:13Third Quarter28Sat
29Sun5:1614.65:5610.912:013.87:544:15Third Quarter29Sun
30Mon6:0214.17:1910.11:114.07:524:17Third Quarter30Mon
31Tue7:0413.99:0210.212:366.22:363.67:514:19Third Quarter31Tue
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 1:25 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 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