Marine Weather and Tide Forecast for Key Colony Beach, FL
 | Sunrise 7:06 AM Sunset 6:16 PM Moonrise 10:55 PM Moonset 9:52 AM |
Marine Forecasts
NOTE: Zones were updated 3/20/2025. If your report is out of date, please click Edit
GMZ053 Expires:202602070345;;186328 Fzus52 Kkey 061537 Cwfkey
coastal waters forecast for the florida keys national weather service key west fl 1037 am est Fri feb 6 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.
gmz052>055-072>075-070345- 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- 1037 am est Fri feb 6 2026
.small craft advisory in effect - .
This afternoon - Northwest to north winds near 20 knots, becoming west to northwest and decreasing to 15 to 20 knots. Seas 5 to 8 feet, occasionally to 9 feet, subsiding to 4 to 6 feet, occasionally to 7 feet. Wave detail: west to northwest 7 feet at 9 seconds and northeast 2 feet at 8 seconds.
Tonight - West to northwest winds 15 to 20 knots, increasing to near 20 knots. Seas 4 to 6 feet, occasionally to 7 feet. Wave detail: west to northwest 5 feet at 9 seconds and west to northwest 4 feet at 4 seconds.
Saturday - Northwest winds near 20 knots, becoming northwest to north and decreasing to near 15 knots. Seas 3 to 6 feet, occasionally to 7 feet. Wave detail: northwest 5 feet at 6 seconds and northeast 1 foot at 7 seconds.
Saturday night - Northwest to north winds 15 to 20 knots, becoming north to northeast. Seas 3 to 6 feet, occasionally to 7 feet.
Sunday - Northeast to east winds 15 to 20 knots, decreasing to near 15 knots. Seas 4 to 6 feet, occasionally to 7 feet.
Sunday night - Northeast to east winds near 15 knots. Seas 3 to 5 feet, occasionally to 6 feet.
Monday - Northeast to east winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet.
Monday night through Tuesday night - East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet.
coastal waters forecast for the florida keys national weather service key west fl 1037 am est Fri feb 6 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.
gmz052>055-072>075-070345- 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- 1037 am est Fri feb 6 2026
GMZ005 Synopsis For Keys Coastal Waters From Ocean Reef To Dry Tortugas 1037 Am Est Fri Feb 6 2026
Synopsis - Generally moderate breezes will continue this morning in the wake of a recent cold frontal passage. As the front continues to push away from the florida keys today, breezes will somewhat slacken, although marine conditions will remain hazardous. An area of high pressure will build across the mid- atlantic over the weekend, supporting moderate northwest breezes. As the high slides southeastward late Sunday through early next week, breezes will slacken and clock around to the northeast.
the approximate shoreward edge of the gulf stream as of february 4 - .
17 nm south of dry tortugas light - .on loggerhead key. 15 nm south of cosgrove shoal light - .off the marquesas keys. 14 nm south of sand key light - .off key west. 17 nm south of looe key - .off big pine key. 14 nm southeast of sombrero key light - .off marathon. 9 nm southeast of alligator reef light - .off islamorada. 4 nm southeast of molasses reef light - .off key largo. 5 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 and rtofs.
the approximate shoreward edge of the gulf stream as of february 4 - .
17 nm south of dry tortugas light - .on loggerhead key. 15 nm south of cosgrove shoal light - .off the marquesas keys. 14 nm south of sand key light - .off key west. 17 nm south of looe key - .off big pine key. 14 nm southeast of sombrero key light - .off marathon. 9 nm southeast of alligator reef light - .off islamorada. 4 nm southeast of molasses reef light - .off key largo. 5 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 and rtofs.
7 Day Forecast for Marine Location Near Key Colony Beach, FL
NEW! Add second zone forecast
| Boot Key Harbor bridge Click for Map Fri -- 05:40 AM EST -0.01 feet Low Tide Fri -- 07:03 AM EST Sunrise Fri -- 09:52 AM EST Moonset Fri -- 11:38 AM EST 1.52 feet High Tide Fri -- 06:13 PM EST Sunset Fri -- 06:22 PM EST -0.09 feet Low Tide Fri -- 10:54 PM EST Moonrise Tide / Current data from XTide NOT FOR NAVIGATION |
Boot Key Harbor bridge, Boot Key, Florida, Tide feet
| 12 am |
| 1.4 |
| 1 am |
| 1.2 |
| 2 am |
| 0.9 |
| 3 am |
| 0.5 |
| 4 am |
| 0.2 |
| 5 am |
| 0 |
| 6 am |
| 0 |
| 7 am |
| 0.2 |
| 8 am |
| 0.5 |
| 9 am |
| 0.9 |
| 10 am |
| 1.3 |
| 11 am |
| 1.5 |
| 12 pm |
| 1.5 |
| 1 pm |
| 1.4 |
| 2 pm |
| 1.1 |
| 3 pm |
| 0.7 |
| 4 pm |
| 0.4 |
| 5 pm |
| 0.1 |
| 6 pm |
| -0.1 |
| 7 pm |
| -0.1 |
| 8 pm |
| 0.1 |
| 9 pm |
| 0.5 |
| 10 pm |
| 0.8 |
| 11 pm |
| 1 |
| Moser Channel Click for Map Flood direction 346 true Ebb direction 164 true Fri -- 02:26 AM EST -0.00 knots Slack Fri -- 05:14 AM EST -1.46 knots Max Ebb Fri -- 07:04 AM EST Sunrise Fri -- 08:40 AM EST 0.00 knots Slack Fri -- 09:52 AM EST Moonset Fri -- 11:05 AM EST 1.20 knots Max Flood Fri -- 02:32 PM EST -0.00 knots Slack Fri -- 05:32 PM EST -1.55 knots Max Ebb Fri -- 06:13 PM EST Sunset Fri -- 09:17 PM EST 0.00 knots Slack Fri -- 10:54 PM EST Moonrise Fri -- 11:38 PM EST 1.00 knots Max Flood Tide / Current data from XTide NOT FOR NAVIGATION |
Moser Channel, between Molasses and Pigeon Keys (depth 3 ft), Florida Current, knots
| 12 am |
| 1 |
| 1 am |
| 0.8 |
| 2 am |
| 0.3 |
| 3 am |
| -0.4 |
| 4 am |
| -1.1 |
| 5 am |
| -1.5 |
| 6 am |
| -1.4 |
| 7 am |
| -1 |
| 8 am |
| -0.5 |
| 9 am |
| 0.3 |
| 10 am |
| 0.9 |
| 11 am |
| 1.2 |
| 12 pm |
| 1.1 |
| 1 pm |
| 0.8 |
| 2 pm |
| 0.3 |
| 3 pm |
| -0.3 |
| 4 pm |
| -1.1 |
| 5 pm |
| -1.5 |
| 6 pm |
| -1.5 |
| 7 pm |
| -1.3 |
| 8 pm |
| -0.8 |
| 9 pm |
| -0.2 |
| 10 pm |
| 0.5 |
| 11 pm |
| 0.9 |
FXUS62 KKEY 061616 AFDKEY
Area Forecast Discussion National Weather Service Key West FL 1116 AM EST Fri Feb 6 2026
New DISCUSSION, MARINE, AVIATION
KEY MESSAGES
- A Small Craft Advisory remains in effect for the SE Gulf Waters and the Straits of Florida. Small Craft Should Exercise Caution until winds decrease and seas subside across Hawk Channel and the Bay and Gulfside waters.
- Cool north to northeasterly breezes will continue with daytime highs only reaching the mid 60s today.
- Nil rain chances are expected for the next several days as dry air remains entrenched across the Keys.
DISCUSSION
Issued at 1003 AM EST Fri Feb 6 2026 Cool and dry conditions have continued through the early morning along the Florida Keys. Automated observations have reported early morning low temperatures were anywhere from near 50F in the Upper Keys to the upper 50s in the Lower Keys, and the chill was very noticeable due to accompanying dewpoints in the 40s. Even though our current temperatures are ranging from the mid 50s to near 60F, there is plenty of sunshine available to help cut some of that chill for those of us well-adapted to the usual Florida warmth.
Visible satellite imagery shows a field of fair weather cumulus clouds to the west of the island chain, but the deep northwesterly flow has put the Keys in the shadow of the peninsula, thus keeping our skies directly overhead virtually cloud-free. The 12Z sounding from this morning calculated half of an inch of precipitable waters, and most of that water in the column is in the lowest levels up to approximately 850 mb, where the cumulus field is sitting. Above that, the air mass is significantly dry, so this should keep our forecast area free of showers. The forecast is unfolding as expected, and no changes are needed with this morning update.
MARINE
Issued at 1003 AM EST Fri Feb 6 2026 Generally moderate breezes will continue this morning in the wake of a recent cold frontal passage. As the front continues to push away from the Florida Keys today, breezes will somewhat slacken, although marine conditions will remain hazardous. An area of high pressure will build across the Mid- Atlantic over the weekend, supporting moderate northwest breezes.
As the high slides southeastward late Sunday through early next week, breezes will slacken and clock around to the northeast.
AVIATION
(15Z TAFS)
Issued at 1003 AM EST Fri Feb 6 2026 VFR conditions will prevail at both terminals through the TAF period. Nearby SCT to BKN decks are around FL040, but the northwesterly flow aloft should help to keep this cloud field away from both terminals. Surface winds at the beginning of the period will gradually back from the north to northwest, but crosswind concerns are low as sustained winds are near 10 knots with only occasional gusts of 15 to 20 knots.
CLIMATE
On this day in 1966, the daily record low temperature of 49F was recorded in Key West. Temperature records for Key West date back to 1872.
PRELIMINARY POINT TEMPS/POPS
Key West 66 59 72 59 / 0 0 0 0 Marathon 64 57 72 57 / 0 0 0 0
KEY WATCHES/WARNINGS/ADVISORIES
FL...None.
GM...Small Craft Advisory until 5 PM EST this afternoon for GMZ033- 034-052>055-072>075.
Area Forecast Discussion National Weather Service Key West FL 1116 AM EST Fri Feb 6 2026
New DISCUSSION, MARINE, AVIATION
KEY MESSAGES
- A Small Craft Advisory remains in effect for the SE Gulf Waters and the Straits of Florida. Small Craft Should Exercise Caution until winds decrease and seas subside across Hawk Channel and the Bay and Gulfside waters.
- Cool north to northeasterly breezes will continue with daytime highs only reaching the mid 60s today.
- Nil rain chances are expected for the next several days as dry air remains entrenched across the Keys.
DISCUSSION
Issued at 1003 AM EST Fri Feb 6 2026 Cool and dry conditions have continued through the early morning along the Florida Keys. Automated observations have reported early morning low temperatures were anywhere from near 50F in the Upper Keys to the upper 50s in the Lower Keys, and the chill was very noticeable due to accompanying dewpoints in the 40s. Even though our current temperatures are ranging from the mid 50s to near 60F, there is plenty of sunshine available to help cut some of that chill for those of us well-adapted to the usual Florida warmth.
Visible satellite imagery shows a field of fair weather cumulus clouds to the west of the island chain, but the deep northwesterly flow has put the Keys in the shadow of the peninsula, thus keeping our skies directly overhead virtually cloud-free. The 12Z sounding from this morning calculated half of an inch of precipitable waters, and most of that water in the column is in the lowest levels up to approximately 850 mb, where the cumulus field is sitting. Above that, the air mass is significantly dry, so this should keep our forecast area free of showers. The forecast is unfolding as expected, and no changes are needed with this morning update.
MARINE
Issued at 1003 AM EST Fri Feb 6 2026 Generally moderate breezes will continue this morning in the wake of a recent cold frontal passage. As the front continues to push away from the Florida Keys today, breezes will somewhat slacken, although marine conditions will remain hazardous. An area of high pressure will build across the Mid- Atlantic over the weekend, supporting moderate northwest breezes.
As the high slides southeastward late Sunday through early next week, breezes will slacken and clock around to the northeast.
AVIATION
(15Z TAFS)
Issued at 1003 AM EST Fri Feb 6 2026 VFR conditions will prevail at both terminals through the TAF period. Nearby SCT to BKN decks are around FL040, but the northwesterly flow aloft should help to keep this cloud field away from both terminals. Surface winds at the beginning of the period will gradually back from the north to northwest, but crosswind concerns are low as sustained winds are near 10 knots with only occasional gusts of 15 to 20 knots.
CLIMATE
On this day in 1966, the daily record low temperature of 49F was recorded in Key West. Temperature records for Key West date back to 1872.
PRELIMINARY POINT TEMPS/POPS
Key West 66 59 72 59 / 0 0 0 0 Marathon 64 57 72 57 / 0 0 0 0
KEY WATCHES/WARNINGS/ADVISORIES
FL...None.
GM...Small Craft Advisory until 5 PM EST this afternoon for GMZ033- 034-052>055-072>075.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| VCAF1 - 8723970 - Vaca Key, FL | 1 mi | 45 min | N 2.9G | |||||
| SMKF1 - Sombrero Key, FL | 5 mi | 33 min | NNW 6G | 56°F | 30.15 | 46°F | ||
| LONF1 - Long Key, FL | 16 mi | 43 min | NW 7G | 56°F | 30.12 | 45°F | ||
| LRKF1 - Little Rabbit Key, FL | 24 mi | 93 min | 56°F | |||||
| PKYF1 - Peterson Key, FL | 24 mi | 93 min | 59°F | |||||
| JKYF1 - Johnson Key, FL | 27 mi | 93 min | 61°F | |||||
| MUKF1 - Murray Key, FL | 29 mi | 93 min | 60°F | |||||
| BKYF1 | 32 mi | 93 min | 61°F | |||||
| BOBF1 - Bob Allen, FL | 32 mi | 93 min | 59°F | |||||
| WRBF1 - Whipray Basin, FL | 32 mi | 93 min | 13 | 56°F | ||||
| GBTF1 - Garfield Bight, FL | 36 mi | 93 min | 58°F | |||||
| TBYF1 | 37 mi | 93 min | 59°F | |||||
| KYWF1 - 8724580 - Key West, FL | 39 mi | 45 min | NE 8G | 30.15 | ||||
| BNKF1 - Butternut Key, FL | 41 mi | 93 min | 57°F | |||||
| LMDF1 - Little Madeira, FL | 41 mi | 93 min | 60°F | |||||
| TRRF1 - Taylor River, FL | 43 mi | 93 min | 62°F | |||||
| SANF1 - Sand Key, FL | 44 mi | 43 min | NE 2.9G | 58°F | 30.14 | 50°F | ||
| DKKF1 - Duck Key, FL | 46 mi | 93 min | 57°F | |||||
| TCVF1 - Trout Cove, FL | 46 mi | 93 min | 59°F | |||||
| JBYF1 | 47 mi | 93 min | 58°F | |||||
| BWSF1 - Blackwater Sound, FL | 48 mi | 93 min | 58°F |
Wind History for Vaca Key, FL
toggle option: (graph/table)
Link to 1 hour of 5 minute data for KMTH
Terminal Aerodrome Forecast (TAF) for KMTH
Wind History Graph: MTH
(wind in knots)
GEOS Local Image of Southeast
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Key West, FL,
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