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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Porpoise Key, Big Spanish Channel, FL.
Next low tide : 10:53 am (0.4 ft)
Next high tide : in 5h 22m at 6:33 am (0.9 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 6:36 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8724196
Common Questions About Tides

Porpoise Key, Big Spanish Channel, FL Tides - Sep 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:541.46:570.911:350.510:530.87:067:44First Quarter1Mon
2Tue6:471.48:200.912:460.47:067:43First Quarter2Tue
3Wed7:551.49:470.91:580.47:077:42First Quarter3Wed
4Thu9:111.510:541.01:100.93:050.47:077:41Waxing Gibbous4Thu
5Fri10:231.611:461.12:260.84:030.37:077:40Waxing Gibbous5Fri
6Sat11:281.63:350.74:540.37:087:39Waxing Gibbous6Sat
7Sun12:301.212:261.74:370.65:390.37:087:38Full Moon7Sun
8Mon1:111.31:201.75:330.46:210.37:097:36Full Moon8Mon
9Tue1:511.42:121.76:260.37:010.47:097:35Full Moon9Tue
10Wed2:301.53:021.67:180.27:400.47:097:34Full Moon10Wed
11Thu3:101.63:511.58:100.28:200.57:107:33Waning Gibbous11Thu
12Fri3:511.64:401.39:030.29:010.67:107:32Waning Gibbous12Fri
13Sat4:341.65:301.29:590.39:440.77:107:31Waning Gibbous13Sat
14Sun5:201.66:271.111:010.410:330.87:117:30Third Quarter14Sun
15Mon6:111.57:361.012:090.57:117:29Third Quarter15Mon
16Tue7:121.49:041.01:200.67:117:28Third Quarter16Tue
17Wed8:251.410:221.012:421.02:280.67:127:27Third Quarter17Wed
18Thu9:391.411:151.11:551.03:280.77:127:26Waning Crescent18Thu
19Fri10:421.411:511.13:021.04:170.77:127:25Waning Crescent19Fri
20Sat11:331.43:580.94:560.77:137:24Waning Crescent20Sat
21Sun12:211.212:171.54:460.85:300.77:137:23Waning Crescent21Sun
22Mon12:491.312:561.55:280.76:010.77:147:22New Moon22Mon
23Tue1:171.41:341.56:050.66:290.77:147:21New Moon23Tue
24Wed1:461.52:121.56:410.56:560.77:147:19New Moon24Wed
25Thu2:171.52:501.47:160.57:230.77:157:18New Moon25Thu
26Fri2:491.53:291.47:530.47:510.87:157:17Waxing Crescent26Fri
27Sat3:221.64:111.38:330.48:210.87:157:16Waxing Crescent27Sat
28Sun3:571.64:561.29:180.48:550.97:167:15Waxing Crescent28Sun
29Mon4:361.65:471.110:100.49:350.97:167:14Waxing Crescent29Mon
30Tue5:221.66:511.111:110.510:271.07:177:13First Quarter30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8724196)

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

Show All
What time does the tide turn (slack tide) in Porpoise Key, Big Spanish Channel, FL today?

Slack tide in Porpoise Key, Big Spanish Channel, FL is approximately 8:43 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 Porpoise Key, Big Spanish Channel, FL?

Porpoise Key, Big Spanish Channel, FL is currently in a transitional phase. Tonight's moon is 37% 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 First Quarter (37% 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