Marine Weather and Tide Forecast for Key West, FL
 | Sunrise 6:37 AM Sunset 8:18 PM Moonrise 11:39 PM Moonset 10:26 AM |
GMZ075 Expires:202506170830;;353956 Fzus52 Kkey 162025 Cwfkey
coastal waters forecast for the florida keys national weather service key west fl 425 pm edt Mon jun 16 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.
gmz052>055-072>075-170830- straits of florida from ocean reef to craig key out 20 nm- straits of florida from craig key to west end of seven mile bridge out 20 nm- straits of florida from west end of seven mile bridge to south of halfmoon shoal out 20 nm- straits of florida from halfmoon shoal to 20 nm west of dry tortugas out 20 nm- straits of florida from ocean reef to craig key 20 to 60 nm out- straits of florida from craig key to west end of seven mile bridge 20 to 60 nm out- straits of florida from west end of seven mile bridge to south of halfmoon shoal 20 to 60 nm out- straits of florida from halfmoon shoal to 20 nm west of dry tortugas 20 to 60 nm out- 425 pm edt Mon jun 16 2025
Tonight - East to southeast winds near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: east to southeast 4 feet at 5 seconds. Isolated showers and Thunderstorms.
Tuesday - East to southeast winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: east to southeast 3 feet at 5 seconds. Scattered showers and isolated Thunderstorms.
Tuesday night - East to southeast winds near 15 knots. Seas 2 to 4 feet, occasionally 5 feet. Isolated showers and Thunderstorms.
Wednesday - East to southeast winds 10 to 15 knots. Seas 2 to 3 feet. Isolated showers and Thunderstorms.
Wednesday night - East to southeast winds near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers and Thunderstorms.
Thursday - East winds 10 to 15 knots. Seas 2 to 3 feet. Isolated showers and Thunderstorms.
Thursday night - East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers and Thunderstorms.
Friday - East winds 10 to 15 knots. Seas 2 to 3 feet. Scattered showers and isolated Thunderstorms.
Friday night - East to southeast winds 10 to 15 knots. Seas 2 to 3 feet. Scattered showers and isolated Thunderstorms.
Saturday - East winds 10 to 15 knots. Seas 2 to 3 feet. Scattered showers and isolated Thunderstorms.
Saturday night - East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Scattered showers and isolated Thunderstorms.
coastal waters forecast for the florida keys national weather service key west fl 425 pm edt Mon jun 16 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.
gmz052>055-072>075-170830- straits of florida from ocean reef to craig key out 20 nm- straits of florida from craig key to west end of seven mile bridge out 20 nm- straits of florida from west end of seven mile bridge to south of halfmoon shoal out 20 nm- straits of florida from halfmoon shoal to 20 nm west of dry tortugas out 20 nm- straits of florida from ocean reef to craig key 20 to 60 nm out- straits of florida from craig key to west end of seven mile bridge 20 to 60 nm out- straits of florida from west end of seven mile bridge to south of halfmoon shoal 20 to 60 nm out- straits of florida from halfmoon shoal to 20 nm west of dry tortugas 20 to 60 nm out- 425 pm edt Mon jun 16 2025
GMZ005 Synopsis For Keys Coastal Waters From Ocean Reef To Dry Tortugas 425 Pm Edt Mon Jun 16 2025
Synopsis - Atlantic ridging will remain across the florida peninsula through Friday. This will support moderate to occasionally fresh east to southeast breezes. Winds will peak in the evening and overnight, while lulling during the day.
the approximate shoreward edge of the gulf stream as of june 13 - .
18 nm southwest of dry tortugas light - .on loggerhead key. 36 nm south of cosgrove shoal light - .off the marquesas keys. 33 nm south of sand key light - .off key west. 39 nm south of looe key - .off big pine key. 25 nm south of sombrero key light - .off marathon. 11 nm southeast of alligator reef light - .off islamorada. 5 nm southeast of molasses reef light - .off key largo. 5 nm east 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.
the approximate shoreward edge of the gulf stream as of june 13 - .
18 nm southwest of dry tortugas light - .on loggerhead key. 36 nm south of cosgrove shoal light - .off the marquesas keys. 33 nm south of sand key light - .off key west. 39 nm south of looe key - .off big pine key. 25 nm south of sombrero key light - .off marathon. 11 nm southeast of alligator reef light - .off islamorada. 5 nm southeast of molasses reef light - .off key largo. 5 nm east 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 Key West, FL
NEW! Add second zone forecast
| Sand Key Lighthouse Click for Map Mon -- 12:02 AM EDT Moonrise Mon -- 01:47 AM EDT 0.96 feet High Tide Mon -- 06:16 AM EDT 0.51 feet Low Tide Mon -- 06:38 AM EDT Sunrise Mon -- 11:25 AM EDT Moonset Mon -- 12:52 PM EDT 1.61 feet High Tide Mon -- 07:56 PM EDT -0.08 feet Low Tide Mon -- 08:17 PM EDT Sunset Tide / Current data from XTide NOT FOR NAVIGATION |
Sand Key Lighthouse, Sand Key Channel, Florida, Tide feet
| 12 am |
| 0.8 |
| 1 am |
| 0.9 |
| 2 am |
| 1 |
| 3 am |
| 0.9 |
| 4 am |
| 0.7 |
| 5 am |
| 0.6 |
| 6 am |
| 0.5 |
| 7 am |
| 0.5 |
| 8 am |
| 0.7 |
| 9 am |
| 0.9 |
| 10 am |
| 1.1 |
| 11 am |
| 1.4 |
| 12 pm |
| 1.6 |
| 1 pm |
| 1.6 |
| 2 pm |
| 1.5 |
| 3 pm |
| 1.3 |
| 4 pm |
| 0.9 |
| 5 pm |
| 0.5 |
| 6 pm |
| 0.2 |
| 7 pm |
| -0 |
| 8 pm |
| -0.1 |
| 9 pm |
| -0 |
| 10 pm |
| 0.2 |
| 11 pm |
| 0.4 |
| Boca Grande Channel Click for Map Mon -- 12:03 AM EDT Moonrise Mon -- 02:22 AM EDT -0.00 knots Slack Mon -- 05:25 AM EDT -0.99 knots Max Ebb Mon -- 06:39 AM EDT Sunrise Mon -- 08:30 AM EDT 0.00 knots Slack Mon -- 10:59 AM EDT 0.93 knots Max Flood Mon -- 11:26 AM EDT Moonset Mon -- 02:04 PM EDT -0.00 knots Slack Mon -- 05:36 PM EDT -1.15 knots Max Ebb Mon -- 08:18 PM EDT Sunset Mon -- 08:51 PM EDT 0.00 knots Slack Mon -- 11:32 PM EDT 1.12 knots Max Flood Tide / Current data from XTide NOT FOR NAVIGATION |
Boca Grande Channel, Florida Current, knots
| 12 am |
| 1 |
| 1 am |
| 0.6 |
| 2 am |
| 0.2 |
| 3 am |
| -0.3 |
| 4 am |
| -0.7 |
| 5 am |
| -1 |
| 6 am |
| -1 |
| 7 am |
| -0.7 |
| 8 am |
| -0.3 |
| 9 am |
| 0.3 |
| 10 am |
| 0.8 |
| 11 am |
| 0.9 |
| 12 pm |
| 0.8 |
| 1 pm |
| 0.4 |
| 2 pm |
| 0 |
| 3 pm |
| -0.4 |
| 4 pm |
| -0.8 |
| 5 pm |
| -1.1 |
| 6 pm |
| -1.1 |
| 7 pm |
| -0.9 |
| 8 pm |
| -0.5 |
| 9 pm |
| 0.1 |
| 10 pm |
| 0.7 |
| 11 pm |
| 1.1 |
FXUS62 KKEY 161849 AFDKEY
Area Forecast Discussion National Weather Service Key West FL 249 PM EDT Mon Jun 16 2025
New DISCUSSION, PREV MARINE AND DISCUSSION
AVIATION
(18Z TAFS)
Issued at 248 PM EDT Mon Jun 16 2025
Although a quickly-passing isolated shower or thunderstorm will be possible in the gentle to moderate east to southeast breezes, VFR conditions will prevail at the island terminals through the TAF period.
MARINE
Issued at 1110 AM EDT Mon Jun 16 2025
No watches, warnings, or advisories are currently in effect for the Florida Keys waters. From synopsis, Atlantic ridging will remain across the Florida Peninsula through Friday. This will support moderate to occasionally fresh east to southeast breezes.
Winds will peak in the evening and overnight, while lulling during the day.
PREV DISCUSSION
Issued at 1110 AM EDT Mon Jun 16 2025
Composite satellite analysis places an expansive high pressure system centered in the central North Atlantic, extending westward all the way to the Gulf. The axis of the associated low-level ridge is currently bisecting the Florida Peninsula. Further aloft, a mid- and upper-level ridge remains firmly planted, bridging from the central Gulf eastward to the western North Atlantic. KBYX radar continues to detect isolated, popcorn-variety showers dotting the Florida Keys marine zones, being generated from the elevated moisture fluxes in the moderate east to southeast breezes. The forecast today calls for slight rain and thunder chances, and given recent radar trends, this still seems appropriate. Highs will easily top out near 90F, with ample sunshine outside of the isolated passing showers. No changes proposed to the inherited full forecast package.
PRELIMINARY POINT TEMPS/POPS
Key West 81 90 81 90 / 20 20 20 20 Marathon 82 88 82 88 / 20 20 20 20
KEY WATCHES/WARNINGS/ADVISORIES
FL...None.
GM...None.
Area Forecast Discussion National Weather Service Key West FL 249 PM EDT Mon Jun 16 2025
New DISCUSSION, PREV MARINE AND DISCUSSION
AVIATION
(18Z TAFS)
Issued at 248 PM EDT Mon Jun 16 2025
Although a quickly-passing isolated shower or thunderstorm will be possible in the gentle to moderate east to southeast breezes, VFR conditions will prevail at the island terminals through the TAF period.
MARINE
Issued at 1110 AM EDT Mon Jun 16 2025
No watches, warnings, or advisories are currently in effect for the Florida Keys waters. From synopsis, Atlantic ridging will remain across the Florida Peninsula through Friday. This will support moderate to occasionally fresh east to southeast breezes.
Winds will peak in the evening and overnight, while lulling during the day.
PREV DISCUSSION
Issued at 1110 AM EDT Mon Jun 16 2025
Composite satellite analysis places an expansive high pressure system centered in the central North Atlantic, extending westward all the way to the Gulf. The axis of the associated low-level ridge is currently bisecting the Florida Peninsula. Further aloft, a mid- and upper-level ridge remains firmly planted, bridging from the central Gulf eastward to the western North Atlantic. KBYX radar continues to detect isolated, popcorn-variety showers dotting the Florida Keys marine zones, being generated from the elevated moisture fluxes in the moderate east to southeast breezes. The forecast today calls for slight rain and thunder chances, and given recent radar trends, this still seems appropriate. Highs will easily top out near 90F, with ample sunshine outside of the isolated passing showers. No changes proposed to the inherited full forecast package.
PRELIMINARY POINT TEMPS/POPS
Key West 81 90 81 90 / 20 20 20 20 Marathon 82 88 82 88 / 20 20 20 20
KEY WATCHES/WARNINGS/ADVISORIES
FL...None.
GM...None.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| 42095 | 13 mi | 53 min | 85°F | 85°F | 2 ft | |||
| SANF1 - Sand Key, FL | 15 mi | 33 min | ESE 14G | 83°F | 30.04 | 73°F | ||
| KYWF1 - 8724580 - Key West, FL | 17 mi | 53 min | SE 9.9G | 90°F | 88°F | 30.06 |
Wind History for Key West, FL
toggle option: (graph/table)
Link to 1 hour of 5 minute data for KEYW
Terminal Aerodrome Forecast (TAF) for KEYW
Wind History Graph: EYW
(wind in knots)
GEOS Local Image of Southeast
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