L-36.com
Top   Marine   7-Day   Tide   NWS   Buoy   Airport   Map   GEOS   Radar   TAF  

Marine Weather and Tide Forecast for Big Pine Key, FL

July 17, 2025 3:44 PM EDT (19:44 UTC)
Change Location 
Sunrise 6:47 AM   Sunset 8:19 PM
Moonrise 11:55 PM   Moonset 12:17 PM 
Print  Help   Reset   Save   Recall   News  Map
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

Marine Forecasts
   
Edit   Hide   Help

NOTE: Zones were updated 3/20/2025. If your report is out of date, please click Edit
GMZ035 Expires:202507180230;;600058 Fzus52 Kkey 171426 Cwfkey
coastal waters forecast for the florida keys national weather service key west fl 1026 am edt Thu jul 17 2025
florida bay, hawk channel and straits of florida from ocean reef to south of dry tortugas, and the extreme southeastern gulf of america, including the florida keys national marine sanctuary
seas are given as significant wave height, which is the average height of the highest 1/3 of the waves. Individual waves may be more than twice the significant wave height.
wave detail will include details about the period and direction of origin for the highest energy waves. Long-period swells coming from a different direction than the wind would be included in the wave detail.
gmz032-035-180230- bayside and gulfside from craig key to west end of seven mile bridge- gulf of america from west end of seven mile bridge to halfmoon shoal out to 5 fathoms- 1026 am edt Thu jul 17 2025

This afternoon - East to southeast winds 10 to 15 knots, increasing to near 15 knots. Seas 1 to 2 feet. NEarshore waters a light to moderate chop, becoming a moderate chop. Scattered showers and isolated Thunderstorms.

Tonight - East to southeast winds near 15 knots, increasing to 15 to 20 knots. Seas 1 to 2 feet, except building to 2 to 3 feet west of the marquesas keys. NEarshore waters a moderate chop, becoming choppy. Isolated showers and Thunderstorms.

Friday - East to southeast winds 15 to 20 knots, decreasing to near 15 knots. Seas 1 to 2 feet, except 2 to 3 feet west of the marquesas keys. NEarshore waters choppy, becoming a moderate chop. Isolated showers and Thunderstorms.

Friday night - East winds near 15 knots. Seas 1 to 2 feet, except 2 to 3 feet west of the marquesas keys. NEarshore waters a moderate chop. Isolated showers and Thunderstorms.

Saturday - East winds near 15 knots, decreasing to 10 to 15 knots. Seas 1 to 2 feet. West of the marquesas keys, seas 2 to 3 feet, subsiding to around 2 feet. NEarshore waters a moderate chop, becoming a light to moderate chop. Isolated showers and Thunderstorms.

Saturday night - East winds 10 to 15 knots, decreasing to near 10 knots. Seas 1 to 2 feet. NEarshore waters a light to moderate chop, becoming a light chop. Isolated showers and Thunderstorms.

Sunday and Sunday night - East winds near 10 knots. Seas around 1 foot. NEarshore waters a light chop. Isolated showers and Thunderstorms.

Monday and Monday night - East to southeast winds 5 to 10 knots. Seas 1 foot or less. NEarshore waters smooth to a light chop. Scattered showers and isolated Thunderstorms.
GMZ005 Synopsis For Keys Coastal Waters From Ocean Reef To Dry Tortugas 1026 Am Edt Thu Jul 17 2025

Synopsis - A strong area of high pressure will build westward across the north atlantic towards the florida peninsula, supporting freshening east to southeast breezes over the next several days. As a second, weak area of high pressure builds over the eastern gulf for the second half of the weekend through early next week, east to southeast breezes will slacken, becoming light to gentle.
the approximate shoreward edge of the gulf stream as of july 15 - .
18 nm south of dry tortugas light - .on loggerhead key. 3 nm south of cosgrove shoal light - .off the marquesas keys. 1 nm south of sand key light - .off key west. 4 nm south of looe key - .off big pine key. 4 nm southeast of sombrero key light - .off marathon. 10 nm southeast of alligator reef light - .off islamorada. 6 nm southeast of molasses reef light - .off key largo. 3 nm southeast of carysfort reef light - .off ocean reef.
gulf stream information courtesy of the national weather service in key west based on products from nasa sport.

7 Day Forecast for Marine Location Near Big Pine Key, FL
   
Edit   Hide   Help   Map    ←NEW

NEW! Add second zone forecast

Tide / Current for Howe Key, south end, Harbor Channel, Florida
  
Edit   Tide Week   Weekend Mode (on/off)   Hide   Help
Howe Key
Click for Map
Thu -- 12:19 AM EDT     Moonrise
Thu -- 01:18 AM EDT     0.15 feet Low Tide
Thu -- 06:46 AM EDT     Sunrise
Thu -- 07:53 AM EDT     1.19 feet High Tide
Thu -- 01:16 PM EDT     Moonset
Thu -- 02:19 PM EDT     0.14 feet Low Tide
Thu -- 08:16 PM EDT     Sunset
Thu -- 08:30 PM EDT     0.87 feet High Tide
Thu -- 08:39 PM EDT     Last Quarter
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, Howe Key, south end, Harbor Channel, Florida does not exist in database. Press Edit above and select a valid nearby location.

Howe Key, south end, Harbor Channel, Florida, Tide feet
12
am
0.3
1
am
0.2
2
am
0.2
3
am
0.3
4
am
0.6
5
am
0.8
6
am
1
7
am
1.1
8
am
1.2
9
am
1.1
10
am
1
11
am
0.7
12
pm
0.5
1
pm
0.2
2
pm
0.2
3
pm
0.2
4
pm
0.3
5
pm
0.5
6
pm
0.6
7
pm
0.8
8
pm
0.9
9
pm
0.9
10
pm
0.8
11
pm
0.6

Tide / Current for No Name Key (northeast of), Florida Current
  
Edit  Tide Week   Hide   Help
No Name Key (northeast of)
Click for Map
Thu -- 12:18 AM EDT     Moonrise
Thu -- 01:46 AM EDT     0.55 knots Max Flood
Thu -- 04:42 AM EDT     -0.00 knots Slack
Thu -- 06:46 AM EDT     Sunrise
Thu -- 07:50 AM EDT     -1.04 knots Max Ebb
Thu -- 11:32 AM EDT     0.00 knots Slack
Thu -- 01:16 PM EDT     Moonset
Thu -- 02:46 PM EDT     0.68 knots Max Flood
Thu -- 05:53 PM EDT     -0.00 knots Slack
Thu -- 08:16 PM EDT     Sunset
Thu -- 08:28 PM EDT     -0.75 knots Max Ebb
Thu -- 08:39 PM EDT     Last Quarter
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, No Name Key (northeast of), Florida Current does not exist in database. Press Edit above and select a valid nearby location.

No Name Key (northeast of), Florida Current, knots
12
am
0.3
1
am
0.5
2
am
0.5
3
am
0.5
4
am
0.2
5
am
-0.1
6
am
-0.6
7
am
-0.9
8
am
-1
9
am
-0.9
10
am
-0.6
11
am
-0.2
12
pm
0.2
1
pm
0.5
2
pm
0.6
3
pm
0.7
4
pm
0.6
5
pm
0.3
6
pm
-0.1
7
pm
-0.5
8
pm
-0.7
9
pm
-0.7
10
pm
-0.5
11
pm
-0.3

Area Discussion for Key West, FL
   Hide   Help   
NOTE: mouseover dotted underlined text for definition
FXUS62 KKEY 171916 AFDKEY

Area Forecast Discussion National Weather Service Key West FL 316 PM EDT Thu Jul 17 2025

New AVIATION, PREV DISCUSSION

AVIATION
(18Z TAFS)
Issued at 302 PM EDT Thu Jul 17 2025 VFR conditions will prevail through the 18Z TAF period with only FEW to SCT skies near FL025. Some isolated showers will continue to transverse the forecast area tonight, specifically in the vicinity of the Middle and Upper Keys. Therefore, opted to remove VCSH from EYW completely, and only keeping VCSH for MTH until 18/00Z. East to southeasterly winds near 10 knots will see some gusts near 20 knots overnight.

PREV DISCUSSION
Issued at 1113 AM EDT Thu Jul 17 2025 Weather conditions look a lot friendlier compared to 24 hours ago! Throughout this morning and early afternoon, isolated showers and thunderstorms have been tracking northwestward across our local waters, and have occasionally crossed the island chain. Automated observations along our island communities have reported rainfall amounts up to 0.12", but radar estimated rainfall totals suggest some locations in the Upper Keys, where the heaviest showers have occurred, have seen near half of an inch of rain along with wind gusts near 20 mph. The lack of activity compared to yesterday likely stems from reduced moisture across the area. Our 12Z sounding calculated a PWAT value of 1.97" which is just below the 75th percentile value of 1.99", but CIMSS MIMIC Layer PWAT suggests that this value isn't entirely representative of the air mass aloft. Values from CIMSS across the area range from approximately 1.5" to 2.0".

This trend of spotty shower and thunderstorm development will continue through today, and an increase in areal coverage isn't expected as the atmosphere becomes worked over. The inherited forecast advertises 30 percent PoPs, and we will go ahead and keep them due to radar trends showing development heading toward the island chain. This activity won't lead to a washout necessarily, and anyone running into these showers may only have to wait 15 to 30 minutes for them to pass. No changes will be made to the current forecast package.

MARINE
Issued at 1113 AM EDT Thu Jul 17 2025 A strong area of high pressure will build westward across the North Atlantic towards the Florida Peninsula, supporting freshening east to southeast breezes over the next several days.
Small Craft Should Exercise Caution headlines will likely need to be posted for portions of the Florida Keys coastal waters beginning as early as this evening, possibly lasting through Friday.

As a second, weak area of high pressure builds over the eastern Gulf for the second half of the weekend through early next week, east to southeast breezes will slacken, becoming light to gentle.

KEY WATCHES/WARNINGS/ADVISORIES
FL...None.
GM...None.


Weather Reporting Stations
   Edit   Hide   Help
Stations Dist Age Wind AirWater WavesinHgDewPt
VCAF1 - 8723970 - Vaca Key, FL 16 mi57 minSE 4.1G8
SMKF1 - Sombrero Key, FL 17 mi45 minESE 7G8.9 87°F 30.0679°F
KYWF1 - 8724580 - Key West, FL 24 mi57 minSSE 7G11 92°F 88°F30.08
LONF1 - Long Key, FL 30 mi45 minSE 7G8.9 85°F 30.0578°F
SANF1 - Sand Key, FL 31 mi45 minESE 8G8.9 85°F 30.0576°F
JKYF1 - Johnson Key, FL 35 mi105 min 86°F
LRKF1 - Little Rabbit Key, FL 36 mi105 min 86°F
MUKF1 - Murray Key, FL 36 mi105 min 89°F
42095 37 mi75 min 86°F 86°F
PKYF1 - Peterson Key, FL 37 mi105 min 88°F
BSKF1 39 mi165 min 87°F
BKYF1 41 mi105 min 87°F
WRBF1 - Whipray Basin, FL 43 mi105 min5.1 86°F
WWEF1 43 mi165 min 93°F
BOBF1 - Bob Allen, FL 44 mi105 min 87°F
GBTF1 - Garfield Bight, FL 44 mi105 min 87°F
SREF1 46 mi105 min 87°F
LRIF1 47 mi105 min 86°F
TBYF1 47 mi105 min 87°F
GBIF1 - Gunboat Island, FL 49 mi105 min 85°F


Wind History for Vaca Key, FL
(wind in knots)    Edit   Hide   Help
toggle option: (graph/table)

Airport Reports
   
Edit   Hide   Help   Click EDIT to display multiple airports. Follow links for more data.

Weather Map
   Hide   Help

GEOS Local Image of gulf of mexico  
Edit   Hide

Key West, FL,





NOTICE: Some pages have affiliate links to Amazon. As an Amazon Associate, I earn from qualifying purchases. Please read website Cookie, Privacy, and Disclamers by clicking HERE. To contact me click HERE. For my YouTube page click HERE