24.7183’ N, 81.3517’ W

Porpoise Key, Big Spanish Channel, FL

84°
H 88°
L 81°
SE
4mph
High tide
9:11 am

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

TIDE TIMES for Sunday, September 6, 2026
The tide is currently rising in Porpoise Key, Big Spanish Channel, FL.
Next low tide : 3:36 pm (0.3 ft)
Next high tide : in 4h 52m at 9:11 am (1.5 ft)
Sunset today : 7:38 pm
Sunrise tomorrow : 7:08 am
Moon phase : Waning Crescent (24% illuminated)
Tide Station Location : Station #8724196
Common Questions About Tides

Porpoise Key, Big Spanish Channel, FL Tides - Aug 1970

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:150.81:191.45:340.67:100.06:538:10New Moon1Sat
2Sun2:420.81:581.46:180.57:400.06:538:09New Moon2Sun
3Mon3:080.92:351.47:000.58:100.16:548:08New Moon3Mon
4Tue3:341.03:121.47:410.58:380.26:548:08Waxing Crescent4Tue
5Wed4:011.13:481.38:220.59:050.36:558:07Waxing Crescent5Wed
6Thu4:291.14:261.29:040.59:310.46:558:06Waxing Crescent6Thu
7Fri4:581.25:071.19:520.49:560.56:568:06Waxing Crescent7Fri
8Sat5:291.25:530.910:450.410:220.66:568:05First Quarter8Sat
9Sun6:031.26:520.811:480.410:510.66:568:04First Quarter9Sun
10Mon6:451.28:170.712:580.36:578:04First Quarter10Mon
11Tue7:391.310:090.62:120.26:578:03First Quarter11Tue
12Wed8:471.311:330.612:230.83:230.16:588:02Waxing Gibbous12Wed
13Thu10:001.41:400.84:260.06:588:01Waxing Gibbous13Thu
14Fri12:260.711:08 AM1.52:590.75:19-0.16:598:00Waxing Gibbous14Fri
15Sat1:060.812:101.64:100.66:05-0.16:598:00Full Moon15Sat
16Sun1:420.91:081.75:120.56:46-0.16:597:59Full Moon16Sun
17Mon2:171.02:021.76:100.47:240.07:007:58Full Moon17Mon
18Tue2:521.22:551.77:060.38:020.27:007:57Full Moon18Tue
19Wed3:271.33:471.58:020.28:380.37:017:56Waning Gibbous19Wed
20Thu4:041.44:391.49:000.19:140.47:017:55Waning Gibbous20Thu
21Fri4:431.55:331.210:010.19:520.67:027:54Waning Gibbous21Fri
22Sat5:241.56:331.011:080.210:310.77:027:54Third Quarter22Sat
23Sun6:121.57:490.812:210.27:027:53Third Quarter23Sun
24Mon7:091.49:360.71:380.37:037:52Third Quarter24Mon
25Tue8:191.411:110.712:130.82:570.37:037:51Third Quarter25Tue
26Wed9:361.41:250.94:070.37:047:50Waning Crescent26Wed
27Thu12:070.810:45 AM1.42:390.95:000.37:047:49Waning Crescent27Thu
28Fri12:440.911:40 AM1.43:460.85:380.37:047:48Waning Crescent28Fri
29Sat1:120.912:261.54:410.86:090.37:057:47Waning Crescent29Sat
30Sun1:351.01:061.55:290.76:380.47:057:46New Moon30Sun
31Mon1:581.11:431.56:100.77:040.47:057:45New Moon31Mon
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 transitional phase. Tonight's moon is 24% 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 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 Waning Crescent (24% illuminated). This places Porpoise Key, Big Spanish Channel, 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