Marine Weather and Tide Forecast for Cudjoe Key, FL
 | Sunrise 6:37 AM Sunset 8:15 PM Moonrise 1:38 AM Moonset 2:38 PM |
Marine Forecasts
NOTE: Zones updated 4/16/2026. Some zones changed. Use Edit if needed.
GMZ035 Expires:202606110215;;504832 Fzus52 Kkey 101413 Cwfkey
coastal waters forecast for the florida keys national weather service key west fl 1013 am edt Wed jun 10 2026
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.
gmz032-035-110215- 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- 1013 am edt Wed jun 10 2026
This afternoon - East to southeast winds near 10 knots, increasing to 10 to 15 knots. Seas around 1 foot, except 1 to 2 feet west of the marquesas keys. NEarshore waters a light chop, becoming a light to moderate chop. A chance of showers with a slight chance of Thunderstorms.
Tonight - East to southeast winds 10 to 15 knots, decreasing to near 10 knots. Seas around 1 foot, except 1 to 2 feet west of the marquesas keys. NEarshore waters a light to moderate chop, becoming a light chop. A slight chance of showers and Thunderstorms.
Thursday - East to southeast winds near 10 knots. Seas around 1 foot. NEarshore waters a light chop. A chance of showers with a slight chance of Thunderstorms.
Thursday night - East to southeast winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop. A slight chance of showers and Thunderstorms.
Friday - East winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop. A slight chance of showers and Thunderstorms.
Friday night - East winds near 5 knots. Seas 1 foot or less. NEarshore waters smooth. A slight chance of showers and Thunderstorms.
Saturday - Northeast to east winds near 5 knots. Seas 1 foot or less. NEarshore waters smooth. A slight chance of showers and Thunderstorms.
Saturday night - East to southeast winds near 5 knots. Seas 1 foot or less. NEarshore waters smooth. A slight chance of showers.
Sunday - Southeast winds near 5 knots. Seas 1 foot or less. NEarshore waters smooth. A slight chance of showers and Thunderstorms.
Sunday night - Southeast to south winds 5 to 10 knots. Seas 1 foot or less. NEarshore waters smooth to a light chop. A slight chance of showers and Thunderstorms.
coastal waters forecast for the florida keys national weather service key west fl 1013 am edt Wed jun 10 2026
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.
gmz032-035-110215- 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- 1013 am edt Wed jun 10 2026
GMZ005 Synopsis For Keys Coastal Waters From Ocean Reef To Dry Tortugas 1013 Am Edt Wed Jun 10 2026
Synopsis - A high pressure system over the north atlantic will support gentle east to southeast breezes across the florida keys coastal waters through this evening. Shower and Thunderstorm coverage will peak this afternoon, owed to the peripheral moisture surge from a central american gyre near the yucatan peninsula. The high pressure system will move further east into the north atlantic overnight, allowing breezes to slacken to light to gentle. As the gyre shifts slightly westward, the moisture plume will also shift west of the florida keys marine zones, supporting a drier pattern through the weekend.
the approximate shoreward edge of the gulf stream as of june 6 - .
47 nm south of dry tortugas light - .on loggerhead key. 18 nm south of cosgrove shoal light - .off the marquesas keys. 13 nm south of sand key light - .off key west. 12 nm south of looe key - .off big pine key. 14 nm south of sombrero key light - .off marathon. 10 nm southeast of alligator reef light - .off islamorada. 7 nm southeast of molasses reef light - .off key largo. 6 nm east of carysfort reef light - .off ocean reef.
gulf stream information courtesy of the national weather service in key west, using data from rtofs and nasa sport sst.
the approximate shoreward edge of the gulf stream as of june 6 - .
47 nm south of dry tortugas light - .on loggerhead key. 18 nm south of cosgrove shoal light - .off the marquesas keys. 13 nm south of sand key light - .off key west. 12 nm south of looe key - .off big pine key. 14 nm south of sombrero key light - .off marathon. 10 nm southeast of alligator reef light - .off islamorada. 7 nm southeast of molasses reef light - .off key largo. 6 nm east of carysfort reef light - .off ocean reef.
gulf stream information courtesy of the national weather service in key west, using data from rtofs and nasa sport sst.
7 Day Forecast for Marine Location Near Cudjoe Key, FL
NEW! Add second zone forecast
| Gopher Key Click for Map Wed -- 02:38 AM EDT Moonrise Wed -- 05:13 AM EDT 1.41 feet High Tide Wed -- 06:36 AM EDT Sunrise Wed -- 12:53 PM EDT 0.05 feet Low Tide Wed -- 03:37 PM EDT Moonset Wed -- 06:27 PM EDT 0.95 feet High Tide Wed -- 08:14 PM EDT Sunset Tide / Current data from XTide NOT FOR NAVIGATION |
Gopher Key, Cudjoe Bay, Florida, Tide feet
| 12 am |
| 0.3 |
| 1 am |
| 0.5 |
| 2 am |
| 0.7 |
| 3 am |
| 1 |
| 4 am |
| 1.3 |
| 5 am |
| 1.4 |
| 6 am |
| 1.4 |
| 7 am |
| 1.3 |
| 8 am |
| 1 |
| 9 am |
| 0.8 |
| 10 am |
| 0.5 |
| 11 am |
| 0.2 |
| 12 pm |
| 0.1 |
| 1 pm |
| 0 |
| 2 pm |
| 0.2 |
| 3 pm |
| 0.4 |
| 4 pm |
| 0.6 |
| 5 pm |
| 0.8 |
| 6 pm |
| 0.9 |
| 7 pm |
| 0.9 |
| 8 pm |
| 0.9 |
| 9 pm |
| 0.7 |
| 10 pm |
| 0.6 |
| 11 pm |
| 0.4 |
| Loggerhead Key Click for Map Flood direction 322 true Ebb direction 158 true Wed -- 12:24 AM EDT 0.00 knots Slack Wed -- 02:38 AM EDT Moonrise Wed -- 03:54 AM EDT 0.19 knots Max Flood Wed -- 06:36 AM EDT Sunrise Wed -- 06:55 AM EDT -0.00 knots Slack Wed -- 10:45 AM EDT -0.28 knots Max Ebb Wed -- 02:23 PM EDT 0.00 knots Slack Wed -- 03:37 PM EDT Moonset Wed -- 04:51 PM EDT 0.12 knots Max Flood Wed -- 08:14 PM EDT Sunset Wed -- 08:23 PM EDT -0.00 knots Slack Wed -- 11:07 PM EDT -0.08 knots Max Ebb Tide / Current data from XTide NOT FOR NAVIGATION |
Loggerhead Key, east of (depth 2 ft), Florida Current, knots
| 12 am |
| -0 |
| 1 am |
| 0 |
| 2 am |
| 0.1 |
| 3 am |
| 0.2 |
| 4 am |
| 0.2 |
| 5 am |
| 0.2 |
| 6 am |
| 0.1 |
| 7 am |
| -0 |
| 8 am |
| -0.1 |
| 9 am |
| -0.2 |
| 10 am |
| -0.3 |
| 11 am |
| -0.3 |
| 12 pm |
| -0.2 |
| 1 pm |
| -0.1 |
| 2 pm |
| -0 |
| 3 pm |
| 0.1 |
| 4 pm |
| 0.1 |
| 5 pm |
| 0.1 |
| 6 pm |
| 0.1 |
| 7 pm |
| 0.1 |
| 8 pm |
| 0 |
| 9 pm |
| -0 |
| 10 pm |
| -0.1 |
| 11 pm |
| -0.1 |
FXUS62 KKEY 101807 AFDKEY
Area Forecast Discussion National Weather Service Key West FL 207 PM EDT Wed Jun 10 2026
New DISCUSSION, AVIATION
KEY MESSAGES
- Rain and thunder chances will remain elevated (around 30%)
through Thursday.
- Lower rain chances will ensue Thursday night, lasting through early next week.
- Conditions will remain seasonably warm and muggy, with heat indices approaching near 100F each afternoon through early next week.
AVIATION
(18Z TAFS)
Issued at 159 PM EDT Wed Jun 10 2026 Scattered showers and isolated thunderstorms along a boundary warrant mention of VCSH in the 18z TAFs at EYW for now. Although scattered shower and isolated thunderstorm will be possible, mainly late in the TAF period, confidence in timing and coverage is too low to include in the explicit TAFs at this time. This will be reevaluated at the 00z and 06z standard TAF issuances later this evening.
PREV DISCUSSION
Issued at 443 AM EDT Wed Jun 10 2026 Looking ahead, the pressure gradient starts to collapse across the Florida Keys. Eastward movement of the Atlantic High and westward movement of the CAG indicates the Keys will be in the doldrums between the two pressure centers. The CAG also is primed to divert additional Caribbean moisture away from the Florida Keys later this week. The result would be a collapse in wind speeds, to light to gentle breezes, and low shower coverage over the weekend. The complicating factor would be local effects. Light to gentle breezes mean cloud line patterns may develop, sea and land breezes become more of a factor, and boundary collisions over the water can set off disorganized showers. However, the environmental pattern looks to be on the drier end. Statistical guidance indicates a below average chance of rain late in the period.
Overall, enjoy the dry conditions while they last.
MARINE
Issued at 1015 AM EDT Wed Jun 10 2026 No watches, warnings, or advisories are in effect for the Florida Keys coastal waters. However, isolated thunderstorms across the eastern Florida Keys marine zones will progress westward throughout the day. Any thunderstorm will be capable of producing locally higher and confused seas, as well as wind gusts well over the mean forecast sustained wind speeds would suggest.
From synopsis, a high pressure system over the North Atlantic will support gentle east to southeast breezes across the Florida Keys coastal waters through this evening. Shower and thunderstorm coverage will peak this afternoon, owed to the peripheral moisture surge from a Central American Gyre near the Yucatan Peninsula.
The high pressure system will move further east into the North Atlantic overnight, allowing breezes to slacken to light to gentle. As the Gyre shifts slightly westward, the moisture plume will also shift west of the Florida Keys marine zones, supporting a drier pattern through the weekend.
PRELIMINARY POINT TEMPS/POPS
Key West 89 81 89 81 / 50 30 30 10 Marathon 88 81 89 81 / 50 30 30 20
KEY WATCHES/WARNINGS/ADVISORIES
FL...None.
GM...None.
Area Forecast Discussion National Weather Service Key West FL 207 PM EDT Wed Jun 10 2026
New DISCUSSION, AVIATION
KEY MESSAGES
- Rain and thunder chances will remain elevated (around 30%)
through Thursday.
- Lower rain chances will ensue Thursday night, lasting through early next week.
- Conditions will remain seasonably warm and muggy, with heat indices approaching near 100F each afternoon through early next week.
AVIATION
(18Z TAFS)
Issued at 159 PM EDT Wed Jun 10 2026 Scattered showers and isolated thunderstorms along a boundary warrant mention of VCSH in the 18z TAFs at EYW for now. Although scattered shower and isolated thunderstorm will be possible, mainly late in the TAF period, confidence in timing and coverage is too low to include in the explicit TAFs at this time. This will be reevaluated at the 00z and 06z standard TAF issuances later this evening.
PREV DISCUSSION
Issued at 443 AM EDT Wed Jun 10 2026 Looking ahead, the pressure gradient starts to collapse across the Florida Keys. Eastward movement of the Atlantic High and westward movement of the CAG indicates the Keys will be in the doldrums between the two pressure centers. The CAG also is primed to divert additional Caribbean moisture away from the Florida Keys later this week. The result would be a collapse in wind speeds, to light to gentle breezes, and low shower coverage over the weekend. The complicating factor would be local effects. Light to gentle breezes mean cloud line patterns may develop, sea and land breezes become more of a factor, and boundary collisions over the water can set off disorganized showers. However, the environmental pattern looks to be on the drier end. Statistical guidance indicates a below average chance of rain late in the period.
Overall, enjoy the dry conditions while they last.
MARINE
Issued at 1015 AM EDT Wed Jun 10 2026 No watches, warnings, or advisories are in effect for the Florida Keys coastal waters. However, isolated thunderstorms across the eastern Florida Keys marine zones will progress westward throughout the day. Any thunderstorm will be capable of producing locally higher and confused seas, as well as wind gusts well over the mean forecast sustained wind speeds would suggest.
From synopsis, a high pressure system over the North Atlantic will support gentle east to southeast breezes across the Florida Keys coastal waters through this evening. Shower and thunderstorm coverage will peak this afternoon, owed to the peripheral moisture surge from a Central American Gyre near the Yucatan Peninsula.
The high pressure system will move further east into the North Atlantic overnight, allowing breezes to slacken to light to gentle. As the Gyre shifts slightly westward, the moisture plume will also shift west of the Florida Keys marine zones, supporting a drier pattern through the weekend.
PRELIMINARY POINT TEMPS/POPS
Key West 89 81 89 81 / 50 30 30 10 Marathon 88 81 89 81 / 50 30 30 20
KEY WATCHES/WARNINGS/ADVISORIES
FL...None.
GM...None.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| KYWF1 - 8724580 - Key West, FL | 18 mi | 51 min | ESE 8G | 30.06 | ||||
| SMKF1 - Sombrero Key, FL | 20 mi | 29 min | E 14G | 82°F | 30.04 | 78°F | ||
| VCAF1 - 8723970 - Vaca Key, FL | 20 mi | 51 min | E 7G | 30.04 | ||||
| SANF1 - Sand Key, FL | 25 mi | 29 min | ESE 11G | 82°F | 30.03 | 75°F | ||
| 42095 | 30 mi | 39 min | 84°F | 84°F | 2 ft | |||
| LONF1 - Long Key, FL | 36 mi | 29 min | ESE 12G | 82°F | 30.03 | 76°F | ||
| JKYF1 - Johnson Key, FL | 42 mi | 129 min | 83°F | |||||
| LRKF1 - Little Rabbit Key, FL | 42 mi | 129 min | 85°F | |||||
| MUKF1 - Murray Key, FL | 43 mi | 129 min | 85°F | |||||
| PKYF1 - Peterson Key, FL | 43 mi | 129 min | 85°F | |||||
| BKYF1 | 48 mi | 129 min | 83°F | |||||
| WRBF1 - Whipray Basin, FL | 49 mi | 129 min | ESE 9.9 | 85°F |
Wind History for Key West, FL
toggle option: (graph/table)
| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Air | DewPt | RH | inHg |
Link to 5 hour of 5 minute data for KNQX
Terminal Aerodrome Forecast (TAF) for KNQX
Wind History Graph: NQX
(wind in knots)
GEOS Local Image of gulf of mexico
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Key West, FL,
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