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 4h 12m at 11:57 pm (1.3 ft)
Next high tide (tomorrow) : 6:26 am (2.4 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 - Aug 2002

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:062.19:231.51:371.03:190.76:538:20Third Quarter1Thu
2Fri8:472.211:531.42:061.24:340.66:548:19Third Quarter2Fri
3Sat9:352.32:311.45:420.46:548:18Waning Crescent3Sat
4Sun10:272.46:430.26:558:18Waning Crescent4Sun
5Mon11:192.67:350.06:558:17Waning Crescent5Mon
6Tue12:112.78:22-0.16:568:16Waning Crescent6Tue
7Wed1:012.99:05-0.16:568:15New Moon7Wed
8Thu4:421.71:512.97:201.69:46-0.16:578:14New Moon8Thu
9Fri4:561.62:432.98:201.410:250.06:578:14New Moon9Fri
10Sat5:101.73:382.89:201.311:020.26:588:13Waxing Crescent10Sat
11Sun5:261.74:342.610:201.111:370.46:588:12Waxing Crescent11Sun
12Mon5:471.95:342.411:230.96:598:11Waxing Crescent12Mon
13Tue6:152.06:402.112:110.612:310.86:598:10Waxing Crescent13Tue
14Wed6:492.27:591.712:440.91:460.67:008:09First Quarter14Wed
15Thu7:292.310:031.51:151.13:090.57:008:08First Quarter15Thu
16Fri8:182.41:451.44:360.37:018:08First Quarter16Fri
17Sat9:182.55:570.27:018:07Waxing Gibbous17Sat
18Sun10:272.57:010.17:028:06Waxing Gibbous18Sun
19Mon3:021.711:34 AM2.65:071.77:510.17:028:05Waxing Gibbous19Mon
20Tue3:221.812:302.66:131.68:310.17:038:04Waxing Gibbous20Tue
21Wed3:401.81:182.77:071.59:040.27:038:03Full Moon21Wed
22Thu3:551.82:012.77:541.49:330.37:048:02Full Moon22Thu
23Fri4:081.82:412.68:371.39:590.57:048:01Full Moon23Fri
24Sat4:191.83:212.59:191.210:240.67:058:00Full Moon24Sat
25Sun4:321.94:032.410:001.110:490.77:057:59Waning Gibbous25Sun
26Mon4:502.04:482.310:430.911:130.87:067:58Waning Gibbous26Mon
27Tue5:142.15:362.111:290.811:351.07:067:57Waning Gibbous27Tue
28Wed5:412.26:311.912:200.77:077:56Waning Gibbous28Wed
29Thu6:112.27:381.71:210.77:077:54Third Quarter29Thu
30Fri6:452.39:231.612:141.32:330.67:087:53Third Quarter30Fri
31Sat7:282.312:241.53:520.57:087:52Third Quarter31Sat
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 3:11 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 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