Marine Weather and Tide Forecast for Key Colony Beach, FL
 | Sunrise 6:37 AM Sunset 8:15 PM Moonrise 2:13 AM Moonset 3:41 PM |
Marine Forecasts
NOTE: Zones updated 4/16/2026. Some zones changed. Use Edit if needed.
GMZ043 Expires:202606111430;;535331 Fzus52 Kkey 110225 Cwfkey
coastal waters forecast for the florida keys national weather service key west fl 1025 pm 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.
gmz042>044-111430- hawk channel from ocean reef to craig key out to the reef- hawk channel from craig key to west end of seven mile bridge out to the reef- hawk channel from west end of seven mile bridge to halfmoon shoal out to the reef- 1025 pm edt Wed jun 10 2026
Overnight - East to southeast 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. A chance of showers with a slight chance of Thunderstorms.
Thursday - East to southeast winds near 10 knots. Seas subsiding to around 1 foot. NEarshore waters a light chop. A chance of showers with a slight chance of Thunderstorms.
Thursday night and Friday - 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. Showers and Thunderstorms.
Friday night - East winds near 5 knots. Seas around 1 foot. 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.
Sunday - East to 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 around 1 foot. NEarshore waters smooth to a light chop. A slight chance of showers.
Monday - Southeast to south winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop. A slight chance of showers and Thunderstorms.
Monday night - Southeast to south winds 5 to 10 knots. Seas 1 to 2 feet. NEarshore waters smooth to a light chop.
coastal waters forecast for the florida keys national weather service key west fl 1025 pm 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.
gmz042>044-111430- hawk channel from ocean reef to craig key out to the reef- hawk channel from craig key to west end of seven mile bridge out to the reef- hawk channel from west end of seven mile bridge to halfmoon shoal out to the reef- 1025 pm edt Wed jun 10 2026
GMZ005 Synopsis For Keys Coastal Waters From Ocean Reef To Dry Tortugas 1025 Pm 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. Shower and Thunderstorm coverage will peak tonight, 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 Key Colony Beach, FL
NEW! Add second zone forecast
| Boot Key Harbor bridge Click for Map Wed -- 02:36 AM EDT Moonrise Wed -- 04:56 AM EDT 1.78 feet High Tide Wed -- 06:34 AM EDT Sunrise Wed -- 11:59 AM EDT 0.05 feet Low Tide Wed -- 03:36 PM EDT Moonset Wed -- 06:10 PM EDT 1.19 feet High Tide Wed -- 08:13 PM EDT Sunset Wed -- 11:27 PM EDT 0.34 feet Low Tide Tide / Current data from XTide NOT FOR NAVIGATION |
Boot Key Harbor bridge, Boot Key, Florida, Tide feet
| 12 am |
| 0.5 |
| 1 am |
| 0.8 |
| 2 am |
| 1.1 |
| 3 am |
| 1.5 |
| 4 am |
| 1.7 |
| 5 am |
| 1.8 |
| 6 am |
| 1.7 |
| 7 am |
| 1.5 |
| 8 am |
| 1.1 |
| 9 am |
| 0.7 |
| 10 am |
| 0.4 |
| 11 am |
| 0.1 |
| 12 pm |
| 0.1 |
| 1 pm |
| 0.1 |
| 2 pm |
| 0.4 |
| 3 pm |
| 0.7 |
| 4 pm |
| 0.9 |
| 5 pm |
| 1.1 |
| 6 pm |
| 1.2 |
| 7 pm |
| 1.1 |
| 8 pm |
| 1 |
| 9 pm |
| 0.7 |
| 10 pm |
| 0.5 |
| 11 pm |
| 0.4 |
| Moser Channel Click for Map Flood direction 346 true Ebb direction 164 true Wed -- 02:16 AM EDT 0.00 knots Slack Wed -- 02:36 AM EDT Moonrise Wed -- 04:52 AM EDT 0.85 knots Max Flood Wed -- 06:34 AM EDT Sunrise Wed -- 08:25 AM EDT -0.00 knots Slack Wed -- 11:50 AM EDT -1.21 knots Max Ebb Wed -- 03:36 PM EDT Moonset Wed -- 03:50 PM EDT 0.00 knots Slack Wed -- 07:10 PM EDT 0.63 knots Max Flood Wed -- 08:13 PM EDT Sunset Wed -- 09:27 PM EDT -0.00 knots Slack Tide / Current data from XTide NOT FOR NAVIGATION |
Moser Channel, between Molasses and Pigeon Keys (depth 3 ft), Florida Current, knots
| 12 am |
| -0.6 |
| 1 am |
| -0.5 |
| 2 am |
| -0.1 |
| 3 am |
| 0.4 |
| 4 am |
| 0.8 |
| 5 am |
| 0.8 |
| 6 am |
| 0.8 |
| 7 am |
| 0.6 |
| 8 am |
| 0.2 |
| 9 am |
| -0.3 |
| 10 am |
| -0.9 |
| 11 am |
| -1.2 |
| 12 pm |
| -1.2 |
| 1 pm |
| -1.1 |
| 2 pm |
| -0.9 |
| 3 pm |
| -0.4 |
| 4 pm |
| 0.1 |
| 5 pm |
| 0.4 |
| 6 pm |
| 0.5 |
| 7 pm |
| 0.6 |
| 8 pm |
| 0.6 |
| 9 pm |
| 0.2 |
| 10 pm |
| -0.3 |
| 11 pm |
| -0.7 |
FXUS62 KKEY 110241 AFDKEY
Area Forecast Discussion National Weather Service Key West FL 1041 PM EDT Wed Jun 10 2026
New DISCUSSION, MARINE, 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.
DISCUSSION
Issued at 1040 PM EDT Wed Jun 10 2026 A decent line of showers has been stretched across the coastal waters from the distant Straits up into the Gulf waters for a majority of the evening. Within the last hour or so these showers have moved more easterly now allowing for some shower activity over the Lower Keys, though measurable rain has been limited as of now. Some showers in the Straits have gotten strong enough to briefly produce lightning strikes, but haven't been able to hold their strength. Temperatures across the island chain are currently in the lower 80s, and Nighttime Microphysics shows a mostly cloudy area. Across the Reef, winds are southeasterly at 10 to 15 knots. Overnight, the current showers will eventually start to diminish in coverage and strength as they lose steam therefore left the 30% for tonight. Winds will slightly slacken as high pressure moves further east tonight. No changes were made to this update package.
MARINE
Issued at 1040 PM EDT Wed Jun 10 2026 No watches, warnings, or advisories are currently in effect for the Florida Keys waters. From synopsis, a high pressure system over the North Atlantic will support gentle east to southeast breezes across the Florida Keys coastal waters. Shower and thunderstorm coverage will peak tonight, 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.
AVIATION
(00Z TAFS)
Issued at 1040 PM EDT Wed Jun 10 2026 VFR conditions will prevail at both EYW and MTH through the TAF period. VCSH is included at EYW for nearby shower activity and TEMPOs will be included if direct impacts are expected. Currently there are no showers near MTH but if these showers continue to shift easterly than VCSH will be included at a later issuance.
Near surface winds will be southeasterly at near 10 knots through the overnight period.
KEY WATCHES/WARNINGS/ADVISORIES
FL...None.
GM...None.
Area Forecast Discussion National Weather Service Key West FL 1041 PM EDT Wed Jun 10 2026
New DISCUSSION, MARINE, 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.
DISCUSSION
Issued at 1040 PM EDT Wed Jun 10 2026 A decent line of showers has been stretched across the coastal waters from the distant Straits up into the Gulf waters for a majority of the evening. Within the last hour or so these showers have moved more easterly now allowing for some shower activity over the Lower Keys, though measurable rain has been limited as of now. Some showers in the Straits have gotten strong enough to briefly produce lightning strikes, but haven't been able to hold their strength. Temperatures across the island chain are currently in the lower 80s, and Nighttime Microphysics shows a mostly cloudy area. Across the Reef, winds are southeasterly at 10 to 15 knots. Overnight, the current showers will eventually start to diminish in coverage and strength as they lose steam therefore left the 30% for tonight. Winds will slightly slacken as high pressure moves further east tonight. No changes were made to this update package.
MARINE
Issued at 1040 PM EDT Wed Jun 10 2026 No watches, warnings, or advisories are currently in effect for the Florida Keys waters. From synopsis, a high pressure system over the North Atlantic will support gentle east to southeast breezes across the Florida Keys coastal waters. Shower and thunderstorm coverage will peak tonight, 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.
AVIATION
(00Z TAFS)
Issued at 1040 PM EDT Wed Jun 10 2026 VFR conditions will prevail at both EYW and MTH through the TAF period. VCSH is included at EYW for nearby shower activity and TEMPOs will be included if direct impacts are expected. Currently there are no showers near MTH but if these showers continue to shift easterly than VCSH will be included at a later issuance.
Near surface winds will be southeasterly at near 10 knots through the overnight period.
KEY WATCHES/WARNINGS/ADVISORIES
FL...None.
GM...None.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| VCAF1 - 8723970 - Vaca Key, FL | 1 mi | 61 min | SSE 5.1G | 30.03 | ||||
| SMKF1 - Sombrero Key, FL | 5 mi | 29 min | S 11G | 80°F | 30.04 | 78°F | ||
| LONF1 - Long Key, FL | 16 mi | 29 min | SSE 8.9G | 82°F | 30.01 | 76°F | ||
| KYWF1 - 8724580 - Key West, FL | 39 mi | 61 min | SE 6G | 30.05 | ||||
| SANF1 - Sand Key, FL | 44 mi | 29 min | S 12G | 80°F | 30.02 | 75°F |
Wind History for Vaca Key, FL
toggle option: (graph/table)
Link to 5 hour of 5 minute data for KMTH
Terminal Aerodrome Forecast (TAF) for KMTH
Wind History Graph: MTH
(wind in knots)
GEOS Local Image of gulf of mexico
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Key West, FL,
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