24.7183’ N, 81.3517’ W

Porpoise Key, Big Spanish Channel, FL

83°
H -°
L 79°
NNW
5mph
High tide
12:57 am

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

TIDE TIMES for Thursday, September 24, 2026
The tide is currently rising in Porpoise Key, Big Spanish Channel, FL.
Next low tide (tomorrow) : 5:35 am (0.7 ft)
Next high tide (tomorrow) : in 1h 29m at 12:57 am (1.3 ft)
Sunset today : 7:19 pm
Sunrise tomorrow : 7:14 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #8724196
Common Questions About Tides

Porpoise Key, Big Spanish Channel, FL Tides - Apr 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:080.68:460.91:480.01:170.67:167:41First Quarter1Sat
2Sun11:090.610:070.92:550.02:350.57:157:42Waxing Gibbous2Sun
3Mon11:480.711:101.03:520.13:410.57:147:42Waxing Gibbous3Mon
4Tue12:170.84:380.14:340.47:137:42Waxing Gibbous4Tue
5Wed12:001.012:430.95:150.15:180.27:127:43Waxing Gibbous5Wed
6Thu12:431.01:081.05:480.15:560.17:117:43Waxing Gibbous6Thu
7Fri1:221.11:341.06:170.16:320.07:107:44Full Moon7Fri
8Sat2:001.12:021.16:440.27:06-0.17:097:44Full Moon8Sat
9Sun2:391.02:311.27:100.27:41-0.27:087:45Full Moon9Sun
10Mon3:181.03:011.27:370.28:18-0.27:077:45Full Moon10Mon
11Tue3:590.93:331.28:040.38:59-0.37:067:45Waning Gibbous11Tue
12Wed4:430.84:061.28:340.49:46-0.37:057:46Waning Gibbous12Wed
13Thu5:320.74:441.29:080.410:40-0.27:057:46Waning Gibbous13Thu
14Fri6:300.75:311.29:510.511:44-0.27:047:47Third Quarter14Fri
15Sat7:440.66:331.110:500.67:037:47Third Quarter15Sat
16Sun9:060.67:561.112:53-0.112:140.67:027:48Third Quarter16Sun
17Mon10:130.79:261.12:02-0.11:440.57:017:48Third Quarter17Mon
18Tue11:030.810:441.13:050.03:030.47:007:48Waning Crescent18Tue
19Wed11:451.011:511.23:590.04:090.26:597:49Waning Crescent19Wed
20Thu12:231.14:460.05:070.06:587:49Waning Crescent20Thu
21Fri12:491.21:001.25:290.15:59-0.26:577:50New Moon21Fri
22Sat1:431.21:371.36:090.16:48-0.46:567:50New Moon22Sat
23Sun2:341.12:151.46:470.27:37-0.56:567:51New Moon23Sun
24Mon3:221.02:531.47:250.28:25-0.56:557:51Waxing Crescent24Mon
25Tue4:090.93:321.48:040.39:14-0.46:547:52Waxing Crescent25Tue
26Wed4:570.84:121.38:440.410:06-0.36:537:52Waxing Crescent26Wed
27Thu5:470.74:551.29:270.511:02-0.26:527:53Waxing Crescent27Thu
28Fri6:440.75:431.110:190.66:527:53First Quarter28Fri
29Sat7:530.76:411.012:030.011:29 AM0.66:517:54First Quarter29Sat
30Sun9:110.77:550.91:050.112:520.76:507:54First Quarter30Sun
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 spring phase. Tonight's moon is 95% 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 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 Waxing Gibbous (95% illuminated). This places Porpoise Key, Big Spanish Channel, 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