Florida tide station

Porpoise Key, Big Spanish Channel tide times

Today, Sunday, October 18, 2026: high tide at 6:24 AM (1.4 ft) and 9:12 PM (1.0 ft); low tide at 1:10 PM (0.7 ft) and 11:50 PM (1.3 ft). Water temperature 85.5 F at buoy VCAF1 (15 mi away).

NOAA station 8724196 · Subordinate station · MLLW datum · times in EDT · sunrise 7:25 AM, sunset 6:56 PM · first quarter (51% lit)

High tide▲

6:24AM

1.4FT MLLW

high

Low tide▼

1:10PM

0.7FT MLLW

low

High tide▲

9:12PM

1.0FT MLLW

high

Low tide▼

11:50PM

1.3FT MLLW

low

predicted height above MLLWnightnow (build time; your browser updates it)

As of 5:20 AM the tide is rising toward high tide at 6:24 AM (1.4 ft).

First Quarter 51% litSunrise 7:25 AMSunset 6:56 PMDaylight 11h 31mEDT

High tide at Porpoise Key, Big Spanish Channel, Florida on October 18, 2026 is at 6:24 AM (1.4 ft above MLLW) and 9:12 PM (1.0 ft above MLLW).
Low tide at Porpoise Key, Big Spanish Channel on October 18, 2026 is at 1:10 PM (0.7 ft) and 11:50 PM (1.3 ft).
Today's tidal range at Porpoise Key, Big Spanish Channel is 0.7 ft (highest high 1.4 ft, lowest low 0.7 ft).
The nearest NOAA water temperature to Porpoise Key, Big Spanish Channel is 85.5 F at buoy VCAF1 (15 mi away), as of October 18, 2026.
Sunrise 7:25 AM, sunset 6:56 PM (EDT); moon first quarter, 51% illuminated.
Predictions are NOAA CO-OPS tide predictions for station 8724196 (subordinate station), heights above MLLW.

Next 7 days at Porpoise Key, Big Spanish Channel

Date	Tide 1	Tide 2	Tide 3	Tide 4	Sunrise	Sunset	Moon
Sun Oct 18today	6:24 AM1.4 ft	1:10 PM0.7 ft	9:12 PM1.0 ft	11:50 PM1.3 ft	7:25 AM	6:56 PM	51%
Mon Oct 19	7:39 AM1.4 ft	2:12 PM0.8 ft	10:08 PM1.1 ft		7:25 AM	6:55 PM	61%
Tue Oct 20	1:36 AM1.3 ft	8:59 AM1.4 ft	3:02 PM0.8 ft	10:40 PM1.2 ft	7:26 AM	6:54 PM	71%
Wed Oct 21	2:48 AM1.1 ft	10:10 AM1.4 ft	3:42 PM0.8 ft	11:08 PM1.3 ft	7:26 AM	6:53 PM	80%
Thu Oct 22	3:44 AM1.0 ft	11:09 AM1.5 ft	4:16 PM0.8 ft	11:36 PM1.4 ft	7:27 AM	6:53 PM	88%
Fri Oct 23	4:32 AM0.7 ft	12:02 PM1.5 ft	4:47 PM0.8 ft		7:28 AM	6:52 PM	94%
Sat Oct 24	12:05 AM1.5 ft	5:16 AM0.5 ft	12:51 PM1.5 ft	5:18 PM0.8 ft	7:28 AM	6:51 PM	98%

Water temperature near Porpoise Key, Big Spanish Channel

85.5 F (29.7 C)

NDBC buoy VCAF1 (8723970 - Vaca Key, FL), 15 mi away, observed 08:48 UTC October 18, 2026

Water temperature is the nearest NOAA reading to Porpoise Key, Big Spanish Channel, not a measurement at the tide gauge itself (this station has no water-temperature sensor). See water temperature by state for every sensor and buoy.

Tide tables

High (▲) and low (▼) tides in EDT with sunrise, sunset and moon illumination. CSV of today's tides for every Florida station.

October 2026 tide table

Date	Tide 1	Tide 2	Tide 3	Tide 4	Sunrise	Sunset	Moon
Thu Oct 1					7:18 AM	7:12 PM	72%
Fri Oct 2					7:18 AM	7:11 PM	62%
Sat Oct 3					7:18 AM	7:10 PM	52%
Sun Oct 4					7:19 AM	7:09 PM	41%
Mon Oct 5					7:19 AM	7:08 PM	31%
Tue Oct 6					7:20 AM	7:07 PM	22%
Wed Oct 7					7:20 AM	7:06 PM	14%
Thu Oct 8					7:20 AM	7:05 PM	7%
Fri Oct 9					7:21 AM	7:04 PM	3%
Sat Oct 10					7:21 AM	7:03 PM	0%
Sun Oct 11					7:22 AM	7:02 PM	0%
Mon Oct 12					7:22 AM	7:02 PM	2%
Tue Oct 13					7:23 AM	7:01 PM	7%
Wed Oct 14					7:23 AM	7:00 PM	13%
Thu Oct 15					7:24 AM	6:59 PM	21%
Fri Oct 16	4:38 AM1.5 ft	10:55 AM0.5 ft	6:21 PM1.0 ft	9:18 PM1.1 ft	7:24 AM	6:58 PM	30%
Sat Oct 17	5:26 AM1.5 ft	12:01 PM0.6 ft	7:37 PM0.9 ft	9:59 PM1.2 ft	7:24 AM	6:57 PM	40%
Sun Oct 18today	6:24 AM1.4 ft	1:10 PM0.7 ft	9:12 PM1.0 ft	11:50 PM1.3 ft	7:25 AM	6:56 PM	51%
Mon Oct 19	7:39 AM1.4 ft	2:12 PM0.8 ft	10:08 PM1.1 ft		7:25 AM	6:55 PM	61%
Tue Oct 20	1:36 AM1.3 ft	8:59 AM1.4 ft	3:02 PM0.8 ft	10:40 PM1.2 ft	7:26 AM	6:54 PM	71%
Wed Oct 21	2:48 AM1.1 ft	10:10 AM1.4 ft	3:42 PM0.8 ft	11:08 PM1.3 ft	7:26 AM	6:53 PM	80%
Thu Oct 22	3:44 AM1.0 ft	11:09 AM1.5 ft	4:16 PM0.8 ft	11:36 PM1.4 ft	7:27 AM	6:53 PM	88%
Fri Oct 23	4:32 AM0.7 ft	12:02 PM1.5 ft	4:47 PM0.8 ft		7:28 AM	6:52 PM	94%
Sat Oct 24	12:05 AM1.5 ft	5:16 AM0.5 ft	12:51 PM1.5 ft	5:18 PM0.8 ft	7:28 AM	6:51 PM	98%
Sun Oct 25	12:36 AM1.6 ft	5:59 AM0.3 ft	1:40 PM1.4 ft	5:49 PM0.8 ft	7:29 AM	6:50 PM	100%
Mon Oct 26	1:09 AM1.7 ft	6:43 AM0.1 ft	2:28 PM1.3 ft	6:21 PM0.8 ft	7:29 AM	6:49 PM	99%
Tue Oct 27	1:46 AM1.8 ft	7:29 AM-0.0 ft	3:17 PM1.2 ft	6:56 PM0.8 ft	7:30 AM	6:49 PM	97%
Wed Oct 28	2:27 AM1.8 ft	8:18 AM-0.1 ft	4:08 PM1.1 ft	7:32 PM0.9 ft	7:30 AM	6:48 PM	92%
Thu Oct 29	3:12 AM1.8 ft	9:12 AM0.0 ft	5:02 PM1.0 ft	8:12 PM0.9 ft	7:31 AM	6:47 PM	85%
Fri Oct 30	4:04 AM1.8 ft	10:12 AM0.1 ft	6:01 PM1.0 ft	9:01 PM0.9 ft	7:31 AM	6:47 PM	77%
Sat Oct 31	5:02 AM1.7 ft	11:20 AM0.3 ft	7:09 PM0.9 ft	10:06 PM1.0 ft	7:32 AM	6:46 PM	68%

November 2026 tide table

Date	Tide 1	Tide 2	Tide 3	Tide 4	Sunrise	Sunset	Moon
Sun Nov 1	5:12 AM1.6 ft	11:31 AM0.4 ft	7:22 PM1.0 ft	10:38 PM1.0 ft	6:33 AM	5:45 PM	57%
Mon Nov 2	6:36 AM1.5 ft	12:37 PM0.6 ft	8:26 PM1.1 ft		6:33 AM	5:45 PM	46%
Tue Nov 3	12:16 AM1.0 ft	8:06 AM1.5 ft	1:34 PM0.7 ft	9:15 PM1.2 ft	6:34 AM	5:44 PM	36%
Wed Nov 4	1:39 AM0.8 ft	9:26 AM1.4 ft	2:21 PM0.8 ft	9:56 PM1.4 ft	6:34 AM	5:43 PM	26%
Thu Nov 5	2:47 AM0.7 ft	10:31 AM1.4 ft	3:02 PM0.8 ft	10:33 PM1.5 ft	6:35 AM	5:43 PM	17%
Fri Nov 6	3:43 AM0.5 ft	11:26 AM1.3 ft	3:39 PM0.9 ft	11:06 PM1.6 ft	6:36 AM	5:42 PM	10%
Sat Nov 7	4:31 AM0.3 ft	12:15 PM1.3 ft	4:14 PM0.9 ft	11:39 PM1.6 ft	6:36 AM	5:42 PM	5%
Sun Nov 8	5:13 AM0.2 ft	12:58 PM1.2 ft	4:48 PM0.8 ft		6:37 AM	5:41 PM	1%
Mon Nov 9	12:11 AM1.7 ft	5:53 AM0.1 ft	1:37 PM1.1 ft	5:20 PM0.8 ft	6:38 AM	5:41 PM	0%
Tue Nov 10	12:44 AM1.6 ft	6:31 AM0.1 ft	2:14 PM1.1 ft	5:52 PM0.8 ft	6:38 AM	5:40 PM	1%
Wed Nov 11	1:18 AM1.6 ft	7:10 AM0.1 ft	2:51 PM1.0 ft	6:23 PM0.8 ft	6:39 AM	5:40 PM	4%
Thu Nov 12	1:54 AM1.6 ft	7:51 AM0.2 ft	3:29 PM1.0 ft	6:53 PM0.9 ft	6:40 AM	5:39 PM	10%
Fri Nov 13	2:32 AM1.5 ft	8:35 AM0.2 ft	4:10 PM0.9 ft	7:24 PM0.9 ft	6:40 AM	5:39 PM	17%
Sat Nov 14	3:13 AM1.5 ft	9:23 AM0.4 ft	4:57 PM0.9 ft	8:01 PM1.0 ft	6:41 AM	5:39 PM	25%
Sun Nov 15	3:58 AM1.4 ft	10:16 AM0.5 ft	5:50 PM0.9 ft	8:57 PM1.1 ft	6:42 AM	5:38 PM	35%
Mon Nov 16	4:51 AM1.4 ft	11:11 AM0.6 ft	6:47 PM1.0 ft	10:26 PM1.1 ft	6:42 AM	5:38 PM	45%
Tue Nov 17	5:55 AM1.3 ft	12:04 PM0.6 ft	7:40 PM1.0 ft		6:43 AM	5:38 PM	56%
Wed Nov 18	12:00 AM1.0 ft	7:11 AM1.2 ft	12:51 PM0.7 ft	8:24 PM1.1 ft	6:44 AM	5:37 PM	66%
Thu Nov 19	1:14 AM0.9 ft	8:29 AM1.2 ft	1:33 PM0.7 ft	9:02 PM1.2 ft	6:45 AM	5:37 PM	76%
Fri Nov 20	2:15 AM0.6 ft	9:40 AM1.2 ft	2:12 PM0.8 ft	9:38 PM1.4 ft	6:45 AM	5:37 PM	84%
Sat Nov 21	3:08 AM0.4 ft	10:42 AM1.1 ft	2:50 PM0.8 ft	10:15 PM1.5 ft	6:46 AM	5:37 PM	91%
Sun Nov 22	3:57 AM0.1 ft	11:39 AM1.1 ft	3:29 PM0.8 ft	10:54 PM1.6 ft	6:47 AM	5:36 PM	96%
Mon Nov 23	4:45 AM-0.1 ft	12:32 PM1.1 ft	4:07 PM0.7 ft	11:36 PM1.7 ft	6:47 AM	5:36 PM	99%
Tue Nov 24	5:32 AM-0.3 ft	1:23 PM1.0 ft	4:47 PM0.7 ft		6:48 AM	5:36 PM	100%
Wed Nov 25	12:22 AM1.7 ft	6:21 AM-0.4 ft	2:12 PM0.9 ft	5:29 PM0.6 ft	6:49 AM	5:36 PM	98%
Thu Nov 26	1:12 AM1.8 ft	7:11 AM-0.3 ft	3:01 PM0.9 ft	6:14 PM0.6 ft	6:50 AM	5:36 PM	95%
Fri Nov 27	2:05 AM1.7 ft	8:04 AM-0.2 ft	3:51 PM0.9 ft	7:04 PM0.6 ft	6:50 AM	5:36 PM	89%
Sat Nov 28	3:01 AM1.7 ft	9:00 AM-0.1 ft	4:42 PM0.9 ft	8:03 PM0.7 ft	6:51 AM	5:36 PM	81%
Sun Nov 29	4:00 AM1.6 ft	9:58 AM0.1 ft	5:35 PM0.9 ft	9:16 PM0.7 ft	6:52 AM	5:36 PM	73%
Mon Nov 30	5:06 AM1.4 ft	10:56 AM0.3 ft	6:32 PM1.0 ft	10:44 PM0.7 ft	6:52 AM	5:36 PM	63%

How these predictions are made

Porpoise Key, Big Spanish Channel is a subordinate station: NOAA derives its tides from the reference station Key West by applying fixed offsets.

High tide time

+3h 23m

relative to Key West

Low tide time

+2h 29m

relative to reference

High tide height

x0.72

ratio

Low tide height

x1.00

ratio

Nearby tide stations

Mayo Key, Big Spanish Channel1.2 mi · next high 6:36 AM
Big Pine Key, Bogie Channel Bridge1.5 mi · next high 7:59 PM
Water Key, west end, Big Spanish Channel1.6 mi · next high 6:24 AM
Big Pine Key, Doctors Arm, Bogie Channel2.0 mi · next high 6:30 PM
Big Pine Key, northeast shore2.3 mi · next high 6:20 AM
No Name Key, east side, Bahia Honda Channel2.5 mi · next high 7:24 PM

Questions

What time is high tide at Porpoise Key, Big Spanish Channel today?

High tide at Porpoise Key, Big Spanish Channel, Florida on Sunday, October 18, 2026 is at 6:24 AM (1.4 ft above MLLW) and 9:12 PM (1.0 ft above MLLW), NOAA prediction, local time.

What time is low tide at Porpoise Key, Big Spanish Channel today?

Low tide at Porpoise Key, Big Spanish Channel on Sunday, October 18, 2026 is at 1:10 PM (0.7 ft) and 11:50 PM (1.3 ft).

What is the water temperature at Porpoise Key, Big Spanish Channel?

The nearest NOAA water-temperature reading to Porpoise Key, Big Spanish Channel is 85.5 F at buoy VCAF1 (15 mi away), as of October 18, 2026.

Not for navigation. Predictions do not include weather; wind and pressure can move the real water level by a foot or more. Source: NOAA CO-OPS station 8724196.