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 11m 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 - Jan 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:0014.93:4114.99:553.910:090.88:283:23Waxing Crescent1Thu
2Fri4:3514.94:2613.810:423.910:461.88:273:24First Quarter2Fri
3Sat5:1414.95:2112.711:373.811:292.98:273:25First Quarter3Sat
4Sun6:0015.06:3111.812:433.58:263:27First Quarter4Sun
5Mon6:5615.27:5611.512:234.01:572.88:263:28First Quarter5Mon
6Tue8:0015.79:2211.91:314.93:111.68:253:30Waxing Gibbous6Tue
7Wed9:0716.510:3413.02:485.34:160.28:243:31Waxing Gibbous7Wed
8Thu10:1117.511:3414.24:025.05:13-1.38:243:33Waxing Gibbous8Thu
9Fri11:1018.55:064.36:04-2.68:233:35Full Moon9Fri
10Sat12:2515.512:0419.46:023.46:52-3.58:223:36Full Moon10Sat
11Sun1:1116.512:5519.86:532.47:37-3.98:213:38Full Moon11Sun
12Mon1:5517.31:4319.77:431.78:19-3.78:203:40Waning Gibbous12Mon
13Tue2:3717.72:3019.08:311.39:01-3.08:193:42Waning Gibbous13Tue
14Wed3:1817.73:1717.79:191.29:42-1.78:183:44Waning Gibbous14Wed
15Thu3:5917.54:0516.010:091.510:23-0.18:163:46Waning Gibbous15Thu
16Fri4:4116.94:5614.111:022.111:051.78:153:48Third Quarter16Fri
17Sat5:2416.15:5512.412:012.78:143:49Third Quarter17Sat
18Sun6:1315.37:1011.11:103.18:123:51Third Quarter18Sun
19Mon7:1014.68:4310.712:475.12:273.28:113:54Third Quarter19Mon
20Tue8:1714.210:0811.11:596.23:422.88:093:56Waning Crescent20Tue
21Wed9:2514.311:0911.93:196.54:422.18:083:58Waning Crescent21Wed
22Thu10:2314.811:5312.84:266.35:291.38:064:00Waning Crescent22Thu
23Fri11:1115.55:185.66:080.58:054:02Waning Crescent23Fri
24Sat12:2913.611:53 AM16.26:014.86:41-0.28:034:04New Moon24Sat
25Sun1:0114.312:3016.76:384.17:12-0.88:014:06New Moon25Sun
26Mon1:3115.01:0417.07:123.47:41-1.18:004:08New Moon26Mon
27Tue1:5915.51:3817.17:462.88:10-1.17:584:11New Moon27Tue
28Wed2:2715.92:1216.88:202.38:37-0.97:564:13Waxing Crescent28Wed
29Thu2:5516.22:4616.38:542.09:06-0.37:544:15Waxing Crescent29Thu
30Fri3:2316.33:2315.49:311.99:360.67:524:17Waxing Crescent30Fri
31Sat3:5416.34:0514.310:131.910:101.77:504:20Waxing Crescent31Sat
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