Tides Today & Tomorrow in St. Petersburg, FL

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in St. Petersburg, FL.
Next low tide : in 19m at 1:12 pm (0.6 ft)
Next high tide : 7:36 pm (1.6 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 7:02 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8726520
Common Questions About Tides

St. Petersburg, FL Tides - Nov 1925

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:072.52:571.98:180.27:471.36:415:47Full Moon1Sun
2Mon1:322.63:501.89:000.18:111.46:425:46Waning Gibbous2Mon
3Tue2:012.64:451.79:410.18:321.56:425:45Waning Gibbous3Tue
4Wed2:322.55:461.710:250.18:551.56:435:44Waning Gibbous4Wed
5Thu3:082.46:541.611:130.19:251.66:445:44Waning Gibbous5Thu
6Fri3:502.38:121.612:060.26:445:43Third Quarter6Fri
7Sat4:442.19:211.71:060.36:455:42Third Quarter7Sat
8Sun5:592.010:041.712:391.62:080.36:465:42Third Quarter8Sun
9Mon7:311.810:341.82:261.53:080.46:475:41Third Quarter9Mon
10Tue9:061.810:581.93:431.33:590.56:475:41Waning Crescent10Tue
11Wed10:261.811:172.04:401.04:430.66:485:40Waning Crescent11Wed
12Thu11:291.911:342.15:250.85:210.86:495:40Waning Crescent12Thu
13Fri12:221.96:060.55:530.96:505:39Waning Crescent13Fri
14Sat1:111.96:460.36:231.16:505:39New Moon14Sat
15Sun12:132.42:021.87:260.16:501.26:515:38New Moon15Sun
16Mon12:372.52:581.78:08-0.17:161.36:525:38New Moon16Mon
17Tue1:072.64:001.78:53-0.27:431.46:535:37New Moon17Tue
18Wed1:412.75:081.69:42-0.38:131.46:535:37Waxing Crescent18Wed
19Thu2:222.76:191.510:34-0.38:511.56:545:37Waxing Crescent19Thu
20Fri3:112.67:301.511:30-0.39:461.56:555:36Waxing Crescent20Fri
21Sat4:092.48:321.512:31-0.16:565:36First Quarter21Sat
22Sun5:202.29:191.61:340.06:575:36First Quarter22Sun
23Mon6:471.99:561.71:251.32:350.26:575:36First Quarter23Mon
24Tue8:301.710:271.82:591.13:310.36:585:35First Quarter24Tue
25Wed10:141.710:552.04:160.84:190.56:595:35Waxing Gibbous25Wed
26Thu11:361.611:192.15:170.45:010.77:005:35Waxing Gibbous26Thu
27Fri12:401.66:070.25:360.97:005:35Waxing Gibbous27Fri
28Sat1:371.66:510.06:081.17:015:35Full Moon28Sat
29Sun12:062.42:301.67:32-0.26:361.27:025:35Full Moon29Sun
30Mon12:312.43:211.58:10-0.27:011.37:035:35Full Moon30Mon
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 4:24 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 36% 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 First Quarter (36% 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