Tides Today & Tomorrow in Port Boca Grande, Charlotte Harbor, FL

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Port Boca Grande, Charlotte Harbor, FL.
Next low tide : 9:20 pm (1.0 ft)
Next high tide : in 7h 02m at 7:09 pm (1.0 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 7:02 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8725577
Common Questions About Tides

Port Boca Grande, Charlotte Harbor, FL Tides - Feb 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:100.56:021.112:260.210:00 AM0.57:146:11Third Quarter1Fri
2Sat6:461.21:490.17:136:11Third Quarter2Sat
3Sun7:421.23:00-0.17:136:12Waning Crescent3Sun
4Mon8:391.33:56-0.27:126:13Waning Crescent4Mon
5Tue9:291.44:42-0.37:126:14Waning Crescent5Tue
6Wed10:131.55:22-0.47:116:14Waning Crescent6Wed
7Thu1:250.75:59-0.53:410.67:106:15Waning Crescent7Thu
8Fri1:430.76:33-0.54:350.67:106:16New Moon8Fri
9Sat2:070.77:06-0.55:250.57:096:17New Moon9Sat
10Sun12:021.52:310.77:36-0.46:150.57:096:17New Moon10Sun
11Mon12:371.42:530.78:05-0.37:070.47:086:18Waxing Crescent11Mon
12Tue1:161.33:110.88:31-0.28:040.37:076:19Waxing Crescent12Tue
13Wed2:041.13:220.98:530.09:090.27:066:19Waxing Crescent13Wed
14Thu3:110.93:291.09:100.210:270.17:066:20Waxing Crescent14Thu
15Fri5:030.73:471.29:150.411:55-0.17:056:21First Quarter15Fri
16Sat4:251.37:046:21First Quarter16Sat
17Sun5:221.41:23-0.27:036:22First Quarter17Sun
18Mon6:521.52:41-0.47:026:23First Quarter18Mon
19Tue8:261.63:48-0.67:026:23Waxing Gibbous19Tue
20Wed9:371.74:45-0.67:016:24Waxing Gibbous20Wed
21Thu1:000.75:32-0.73:290.67:006:25Waxing Gibbous21Thu
22Fri1:090.76:13-0.64:410.56:596:25Full Moon22Fri
23Sat1:290.86:49-0.55:420.46:586:26Full Moon23Sat
24Sun12:181.61:520.87:20-0.36:380.36:576:27Full Moon24Sun
25Mon1:071.42:160.97:48-0.27:300.26:566:27Waning Gibbous25Mon
26Tue1:581.22:391.08:130.08:230.16:556:28Waning Gibbous26Tue
27Wed2:541.02:591.08:330.29:180.16:546:28Waning Gibbous27Wed
28Thu4:000.83:101.18:440.410:200.16:536:29Waning Gibbous28Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8725577)

Common Questions About Port Boca Grande, Charlotte Harbor, FL Tides

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What time does the tide turn (slack tide) in Port Boca Grande, Charlotte Harbor, FL today?

Slack tide in Port Boca Grande, Charlotte Harbor, FL is approximately 8:14 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 Port Boca Grande, Charlotte Harbor, FL?

Port Boca Grande, Charlotte Harbor, 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 Port Boca Grande, Charlotte Harbor, 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 Port Boca Grande, Charlotte Harbor, FL?

Tide predictions for Port Boca Grande, Charlotte Harbor, 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 Port Boca Grande, Charlotte Harbor, FL?

Tide data for Port Boca Grande, Charlotte Harbor, FL is sourced from NOAA Station #8725577. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8725577.

What is the moon phase in Port Boca Grande, Charlotte Harbor, FL tonight?

Tonight the moon over Port Boca Grande, Charlotte Harbor, FL is First Quarter (36% illuminated). This places Port Boca Grande, Charlotte Harbor, 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