Tides Today & Tomorrow in Big Torch Key, Harbor Channel, FL

TIDE TIMES for Monday, August 17, 2026
The tide is currently rising in Big Torch Key, Harbor Channel, FL.
Next low tide (tomorrow) : 1:24 am (0.8 ft)
Next high tide : in 2h 47m at 5:52 pm (2.4 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 7:01 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8724274
Common Questions About Tides

Big Torch Key, Harbor Channel, FL Tides - Sep 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:343.010:191.62:391.15:090.67:067:45Third Quarter1Sat
2Sun8:473.011:431.73:431.26:240.67:067:44Third Quarter2Sun
3Mon10:043.05:021.27:270.67:077:43Waning Crescent3Mon
4Tue12:261.911:09 AM3.16:151.28:140.67:077:42Waning Crescent4Tue
5Wed12:552.112:013.27:171.28:500.67:087:41Waning Crescent5Wed
6Thu1:182.312:453.38:081.19:200.67:087:40Waning Crescent6Thu
7Fri1:402.51:253.38:511.09:470.67:087:39New Moon7Fri
8Sat2:042.72:033.39:300.910:120.77:097:37New Moon8Sat
9Sun2:292.92:413.310:070.710:360.87:097:36New Moon9Sun
10Mon2:563.13:193.110:440.611:000.87:097:35New Moon10Mon
11Tue3:243.23:593.011:220.511:240.97:107:34Waxing Crescent11Tue
12Wed3:543.34:412.712:040.47:107:33Waxing Crescent12Wed
13Thu4:253.35:272.412:520.47:107:32Waxing Crescent13Thu
14Fri5:013.46:222.112:181.11:470.47:117:31Waxing Crescent14Fri
15Sat5:453.47:361.912:501.12:540.57:117:30First Quarter15Sat
16Sun6:423.49:171.81:301.24:120.57:117:29First Quarter16Sun
17Mon7:593.410:451.92:341.35:300.57:127:28First Quarter17Mon
18Tue9:293.511:372.14:101.46:390.57:127:27Waxing Gibbous18Tue
19Wed10:483.65:431.37:350.67:137:26Waxing Gibbous19Wed
20Thu12:162.411:56 AM3.76:591.18:200.67:137:25Waxing Gibbous20Thu
21Fri12:522.812:543.88:030.88:590.77:137:24Full Moon21Fri
22Sat1:263.11:483.88:590.69:350.77:147:23Full Moon22Sat
23Sun2:003.42:383.69:510.410:100.87:147:22Full Moon23Sun
24Mon2:343.63:263.310:410.210:440.97:147:20Full Moon24Mon
25Tue3:103.84:123.011:290.211:181.07:157:19Waning Gibbous25Tue
26Wed3:473.84:572.712:190.37:157:18Waning Gibbous26Wed
27Thu4:253.75:442.41:120.47:167:17Waning Gibbous27Thu
28Fri5:073.66:382.112:271.22:100.57:167:16Third Quarter28Fri
29Sat5:533.47:492.01:051.33:170.77:167:15Third Quarter29Sat
30Sun5:503.28:372.01:541.43:300.86:176:14Third Quarter30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8724274)

Common Questions About Big Torch Key, Harbor Channel, FL Tides

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

Slack tide in Big Torch Key, Harbor Channel, FL is approximately 9:38 pm — 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 Torch Key, Harbor Channel, FL?

Big Torch Key, Harbor Channel, FL is currently in a transitional phase. Tonight's moon is 27% 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 Big Torch Key, Harbor 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 Big Torch Key, Harbor Channel, FL?

Tide predictions for Big Torch Key, Harbor 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 Big Torch Key, Harbor Channel, FL?

Tide data for Big Torch Key, Harbor Channel, FL is sourced from NOAA Station #8724274. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8724274.

What is the moon phase in Big Torch Key, Harbor Channel, FL tonight?

Tonight the moon over Big Torch Key, Harbor Channel, FL is Waxing Crescent (27% illuminated). This places Big Torch Key, Harbor 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