24.7183’ N, 81.3517’ W

Porpoise Key, Big Spanish Channel, FL

85°
H 86°
L 77°
ENE
18mph
Low tide
2:12 pm

Tides Today & Tomorrow in Porpoise Key, Big Spanish Channel, FL

TIDE TIMES for Monday, October 19, 2026
The tide is currently falling in Porpoise Key, Big Spanish Channel, FL.
Next low tide : in 1h 39m at 2:12 pm (0.8 ft)
Next high tide : 10:08 pm (1.1 ft)
Sunset today : 6:55 pm
Sunrise tomorrow : 7:25 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #8724196
Common Questions About Tides

Porpoise Key, Big Spanish Channel, FL Tides - Oct 1903

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:131.410:271.21:471.12:500.76:166:13Waxing Gibbous1Thu
2Fri10:081.410:581.32:441.03:310.76:176:12Waxing Gibbous2Fri
3Sat10:551.511:271.33:320.94:060.76:176:11Waxing Gibbous3Sat
4Sun11:381.511:561.44:130.84:380.76:186:10Full Moon4Sun
5Mon12:191.54:510.65:070.76:186:09Full Moon5Mon
6Tue12:271.512:591.55:270.55:350.76:196:08Full Moon6Tue
7Wed12:591.61:401.56:040.46:050.76:196:07Full Moon7Wed
8Thu1:321.62:231.46:430.36:360.86:196:06Waning Gibbous8Thu
9Fri2:071.63:071.37:250.37:090.86:206:05Waning Gibbous9Fri
10Sat2:451.73:551.28:120.37:470.96:206:04Waning Gibbous10Sat
11Sun3:261.64:491.29:060.48:320.96:216:03Waning Gibbous11Sun
12Mon4:161.65:531.110:080.49:291.06:216:02Third Quarter12Mon
13Tue5:171.67:081.111:170.510:451.16:226:01Third Quarter13Tue
14Wed6:341.58:211.112:280.66:226:00Third Quarter14Wed
15Thu8:001.59:211.212:101.01:320.66:225:59Waning Crescent15Thu
16Fri9:181.510:101.41:290.92:290.66:235:58Waning Crescent16Fri
17Sat10:251.610:531.52:370.73:180.76:235:58Waning Crescent17Sat
18Sun11:221.611:331.63:360.64:020.76:245:57Waning Crescent18Sun
19Mon12:141.54:290.44:420.76:245:56New Moon19Mon
20Tue12:111.71:021.55:170.35:210.76:255:55New Moon20Tue
21Wed12:491.71:471.46:030.25:590.76:255:54New Moon21Wed
22Thu1:271.72:301.36:480.26:370.86:265:53Waxing Crescent22Thu
23Fri2:051.73:121.37:330.27:150.86:265:52Waxing Crescent23Fri
24Sat2:431.73:551.28:190.37:550.96:275:52Waxing Crescent24Sat
25Sun3:241.64:401.19:090.48:401.06:285:51Waxing Crescent25Sun
26Mon4:071.55:331.110:050.69:351.16:285:50First Quarter26Mon
27Tue4:571.46:361.111:050.710:481.16:295:49First Quarter27Tue
28Wed5:571.47:471.112:070.76:295:49First Quarter28Wed
29Thu7:111.38:461.112:081.11:050.86:305:48First Quarter29Thu
30Fri8:261.39:301.21:201.11:560.86:305:47Waxing Gibbous30Fri
31Sat9:311.310:061.32:191.02:390.86:315:46Waxing Gibbous31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8724196)

Common Questions About Porpoise Key, Big Spanish Channel, FL Tides

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Is this week a spring tide or neap tide in Porpoise Key, Big Spanish Channel, FL?

Porpoise Key, Big Spanish Channel, FL is currently in a neap phase. Tonight's moon is 59% 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 minimum.

What datum are Porpoise Key, Big Spanish Channel, 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 Porpoise Key, Big Spanish Channel, FL?

Tide predictions for Porpoise Key, Big Spanish Channel, 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 Porpoise Key, Big Spanish Channel, FL?

Tide data for Porpoise Key, Big Spanish Channel, FL is sourced from NOAA Station #8724196. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8724196.

What is the moon phase in Porpoise Key, Big Spanish Channel, FL tonight?

Tonight the moon over Porpoise Key, Big Spanish Channel, FL is First Quarter (59% illuminated). This places Porpoise Key, Big Spanish Channel, FL in a neap tide cycle, so tidal ranges are near their weekly minimum 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