Tides Today & Tomorrow in St. Petersburg, FL

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in St. Petersburg, FL.
Next low tide : 11:57 pm (1.3 ft)
Next high tide : in 1h 05m at 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 - Oct 2002

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:182.45:380.37:237:16Waning Crescent1Tue
2Wed1:341.910:48 AM2.55:001.76:310.27:237:15Waning Crescent2Wed
3Thu1:442.011:59 AM2.66:021.57:160.37:247:14Waning Crescent3Thu
4Fri1:562.012:592.76:541.37:540.57:247:13Waning Crescent4Fri
5Sat2:072.11:552.77:431.08:290.77:257:12New Moon5Sat
6Sun2:222.22:512.68:310.79:010.97:257:11New Moon6Sun
7Mon2:412.43:492.49:210.49:311.27:267:10New Moon7Mon
8Tue3:062.54:532.210:120.29:571.47:267:09Waxing Crescent8Tue
9Wed3:362.76:052.011:060.110:171.67:277:08Waxing Crescent9Wed
10Thu4:102.77:361.812:050.17:277:07Waxing Crescent10Thu
11Fri4:492.71:110.17:287:05First Quarter11Fri
12Sat5:372.62:270.27:297:04First Quarter12Sat
13Sun6:412.43:480.37:297:03First Quarter13Sun
14Mon8:122.25:010.47:307:02First Quarter14Mon
15Tue12:581.910:04 AM2.24:271.75:580.47:307:01Waxing Gibbous15Tue
16Wed1:071.911:36 AM2.25:421.46:400.57:317:00Waxing Gibbous16Wed
17Thu1:212.012:372.26:331.27:120.77:316:59Waxing Gibbous17Thu
18Fri1:342.11:242.27:131.07:380.87:326:58Waxing Gibbous18Fri
19Sat1:452.22:042.27:490.88:011.07:336:57Full Moon19Sat
20Sun1:542.32:422.18:240.68:211.27:336:56Full Moon20Sun
21Mon2:072.43:212.08:580.58:391.37:346:55Full Moon21Mon
22Tue2:242.54:032.09:340.38:551.47:346:55Full Moon22Tue
23Wed2:442.54:501.910:110.29:101.57:356:54Waning Gibbous23Wed
24Thu3:082.65:441.810:510.29:271.57:366:53Waning Gibbous24Thu
25Fri3:352.66:531.711:370.19:451.67:366:52Waning Gibbous25Fri
26Sat4:082.612:300.17:376:51Waning Gibbous26Sat
27Sun3:492.512:350.16:385:50Third Quarter27Sun
28Mon4:452.41:460.26:385:49Third Quarter28Mon
29Tue6:142.211:141.82:550.26:395:49Third Quarter29Tue
30Wed8:012.211:241.92:391.73:550.26:405:48Third Quarter30Wed
31Thu9:372.211:372.03:581.44:460.36:405:47Waning Crescent31Thu
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 9:46 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