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 4h 28m at 12:10 pm (0.6 ft)
Next high tide : 6:25 pm (1.9 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 - Apr 1928

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:211.56:19-0.26:060.96:206:48Waxing Gibbous1Sun
2Mon1:301.66:510.06:490.76:196:48Waxing Gibbous2Mon
3Tue12:461.81:381.77:160.17:270.56:186:49Full Moon3Tue
4Wed1:271.81:441.87:390.38:030.36:176:49Full Moon4Wed
5Thu2:071.71:551.98:000.58:380.16:166:50Full Moon5Thu
6Fri2:471.62:122.08:190.79:140.06:156:50Full Moon6Fri
7Sat3:301.52:332.18:360.89:51-0.16:146:51Waning Gibbous7Sat
8Sun4:191.42:572.28:520.910:32-0.26:136:51Waning Gibbous8Sun
9Mon5:141.33:242.29:061.011:20-0.26:116:52Waning Gibbous9Mon
10Tue6:271.23:542.29:171.16:106:52Waning Gibbous10Tue
11Wed4:312.112:17-0.26:096:53Third Quarter11Wed
12Thu5:202.01:26-0.26:086:53Third Quarter12Thu
13Fri6:411.92:40-0.26:076:54Third Quarter13Fri
14Sat12:331.53:48-0.23:041.46:066:54Third Quarter14Sat
15Sun12:271.54:45-0.24:251.26:056:55Waning Crescent15Sun
16Mon12:351.65:31-0.15:231.06:046:55Waning Crescent16Mon
17Tue12:441.76:100.06:130.66:036:56Waning Crescent17Tue
18Wed12:102.012:541.96:450.27:010.36:026:57New Moon18Wed
19Thu1:082.01:102.07:150.57:480.06:016:57New Moon19Thu
20Fri2:071.81:312.37:430.78:38-0.26:006:58New Moon20Fri
21Sat3:101.71:582.48:061.09:29-0.45:596:58New Moon21Sat
22Sun4:221.52:302.68:221.210:24-0.55:586:59Waxing Crescent22Sun
23Mon5:531.33:072.68:241.311:23-0.55:576:59Waxing Crescent23Mon
24Tue3:502.55:567:00Waxing Crescent24Tue
25Wed4:422.312:29-0.45:557:00First Quarter25Wed
26Thu5:532.11:42-0.35:557:01First Quarter26Thu
27Fri7:301.92:56-0.25:547:02First Quarter27Fri
28Sat12:001.64:00-0.13:571.35:537:02First Quarter28Sat
29Sun1:051.75:500.16:111.06:528:03Waxing Gibbous29Sun
30Mon1:161.86:280.27:010.76:518:03Waxing Gibbous30Mon
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 3:17 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 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