Tides Today & Tomorrow in Big Pine Key, Spanish Harbor, FL

TIDE TIMES for Saturday, August 15, 2026
The tide is currently rising in Big Pine Key, Spanish Harbor, FL.
Next low tide (tomorrow) : 6:40 am (0.1 ft)
Next high tide (tomorrow) : in 3h 46m at 12:10 am (1.4 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:59 am
Moon phase : Waxing Crescent (11% illuminated)
Tide Station Location : Station #8724178
Common Questions About Tides

Big Pine Key, Spanish Harbor, FL Tides - Sep 1945

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:211.57:260.91:030.17:067:44Waning Crescent1Sat
2Sun6:321.68:161.012:040.42:040.17:067:43Waning Crescent2Sun
3Mon7:321.68:571.11:100.32:520.17:077:42Waning Crescent3Mon
4Tue8:241.69:311.12:080.33:310.17:077:41New Moon4Tue
5Wed9:101.710:011.22:590.34:060.17:077:40New Moon5Wed
6Thu9:511.610:291.33:450.34:390.27:087:39New Moon6Thu
7Fri10:291.610:571.44:280.25:100.27:087:38New Moon7Fri
8Sat11:051.511:241.45:090.25:410.27:087:37Waxing Crescent8Sat
9Sun11:411.511:531.55:500.26:110.37:097:36Waxing Crescent9Sun
10Mon12:191.46:310.26:400.37:097:35Waxing Crescent10Mon
11Tue12:241.512:581.27:160.27:070.47:097:33Waxing Crescent11Tue
12Wed12:571.51:441.18:060.27:340.47:107:32Waxing Crescent12Wed
13Thu1:351.42:421.09:050.38:050.47:107:31First Quarter13Thu
14Fri2:211.44:040.910:120.38:500.57:107:30First Quarter14Fri
15Sat3:201.45:450.911:240.210:040.57:117:29First Quarter15Sat
16Sun4:321.56:551.012:300.27:117:28First Quarter16Sun
17Mon5:441.57:401.11:260.27:127:27Waxing Gibbous17Mon
18Tue6:491.68:161.212:370.42:120.27:127:26Waxing Gibbous18Tue
19Wed7:461.78:511.31:370.42:540.27:127:25Waxing Gibbous19Wed
20Thu8:391.89:251.42:310.33:320.27:137:24Full Moon20Thu
21Fri9:301.89:591.53:210.24:080.27:137:23Full Moon21Fri
22Sat10:211.810:351.64:110.24:450.27:137:22Full Moon22Sat
23Sun11:121.711:131.75:010.15:220.27:147:21Waning Gibbous23Sun
24Mon12:031.65:540.15:590.37:147:20Waning Gibbous24Mon
25Tue12:571.46:500.16:390.37:147:19Waning Gibbous25Tue
26Wed12:371.81:571.27:520.17:230.47:157:18Waning Gibbous26Wed
27Thu1:271.73:101.19:010.18:160.47:157:16Third Quarter27Thu
28Fri2:271.74:401.010:170.29:240.47:167:15Third Quarter28Fri
29Sat3:431.66:061.111:340.210:450.57:167:14Third Quarter29Sat
30Sun4:081.66:071.111:440.211:030.46:166:13Waning Crescent30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8724178)

Common Questions About Big Pine Key, Spanish Harbor, FL Tides

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What time does the tide turn (slack tide) in Big Pine Key, Spanish Harbor, FL today?

Slack tide in Big Pine Key, Spanish Harbor, FL is approximately 3:25 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 Big Pine Key, Spanish Harbor, FL?

Big Pine Key, Spanish Harbor, FL is currently in a spring phase. Tonight's moon is 11% 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 near their weekly maximum.

What datum are Big Pine Key, Spanish 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 Big Pine Key, Spanish Harbor, FL?

Tide predictions for Big Pine Key, Spanish 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 Big Pine Key, Spanish Harbor, FL?

Tide data for Big Pine Key, Spanish Harbor, FL is sourced from NOAA Station #8724178. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8724178.

What is the moon phase in Big Pine Key, Spanish Harbor, FL tonight?

Tonight the moon over Big Pine Key, Spanish Harbor, FL is Waxing Crescent (11% illuminated). This places Big Pine Key, Spanish Harbor, FL in a spring tide cycle, so tidal ranges are near their weekly maximum 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