Tides Today & Tomorrow in St. Petersburg, FL

TIDE TIMES for Monday, August 17, 2026
The tide is currently falling in St. Petersburg, FL.
Next low tide : in 1h 03m at 11:47 pm (1.1 ft)
Next high tide (tomorrow) : 5:52 am (2.3 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 7:02 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8726520
Common Questions About Tides

St. Petersburg, FL Tides - Feb 1927

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:451.28:04-0.96:381.07:176:10New Moon1Tue
2Wed12:452.34:051.18:46-0.97:340.97:176:11New Moon2Wed
3Thu1:382.34:231.19:25-0.88:310.77:166:12New Moon3Thu
4Fri2:332.24:411.210:03-0.69:300.57:166:13Waxing Crescent4Fri
5Sat3:302.05:021.310:39-0.410:320.37:156:13Waxing Crescent5Sat
6Sun4:301.75:291.411:13-0.111:390.17:146:14Waxing Crescent6Sun
7Mon5:351.36:011.611:460.27:146:15First Quarter7Mon
8Tue6:551.06:391.712:540.012:140.57:136:16First Quarter8Tue
9Wed9:160.87:261.72:16-0.212:340.77:126:16First Quarter9Wed
10Thu8:231.83:41-0.37:126:17First Quarter10Thu
11Fri9:291.84:59-0.57:116:18Waxing Gibbous11Fri
12Sat10:331.96:01-0.67:106:19Waxing Gibbous12Sat
13Sun2:491.26:49-0.65:261.17:096:19Waxing Gibbous13Sun
14Mon3:021.27:28-0.66:211.07:096:20Full Moon14Mon
15Tue12:161.93:131.28:00-0.57:070.97:086:21Full Moon15Tue
16Wed12:581.93:231.28:28-0.47:490.87:076:21Full Moon16Wed
17Thu1:391.93:321.28:55-0.38:290.67:066:22Full Moon17Thu
18Fri2:191.83:431.39:21-0.29:090.57:056:23Full Moon18Fri
19Sat3:011.73:591.49:47-0.19:510.37:056:24Waning Gibbous19Sat
20Sun3:461.54:221.510:110.010:360.27:046:24Waning Gibbous20Sun
21Mon4:341.44:481.610:350.211:260.17:036:25Waning Gibbous21Mon
22Tue5:281.25:161.610:560.37:026:26Waning Gibbous22Tue
23Wed6:361.05:481.712:260.011:14 AM0.57:016:26Third Quarter23Wed
24Thu8:240.86:261.71:38-0.111:22 AM0.77:006:27Third Quarter24Thu
25Fri7:191.82:57-0.26:596:28Third Quarter25Fri
26Sat8:301.84:13-0.46:586:28Third Quarter26Sat
27Sun9:461.95:18-0.56:576:29Waning Crescent27Sun
28Mon2:131.36:13-0.74:561.26:566:29Waning Crescent28Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8726520)

Common Questions About St. Petersburg, FL Tides

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What time does the tide turn (slack tide) in St. Petersburg, FL today?

Slack tide in St. Petersburg, FL is approximately 2:49 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 St. Petersburg, FL?

St. Petersburg, FL is currently in a transitional phase. Tonight's moon is 27% 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 St. Petersburg, FL 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 St. Petersburg, FL?

Tide predictions for St. Petersburg, FL 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 St. Petersburg, FL?

Tide data for St. Petersburg, FL is sourced from NOAA Station #8726520. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8726520.

What is the moon phase in St. Petersburg, FL tonight?

Tonight the moon over St. Petersburg, FL is Waxing Crescent (27% illuminated). This places St. Petersburg, FL 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