Marine Weather and Tide Forecast for Key Biscayne, FL
April 22, 2025 2:12 AM EDT (06:12 UTC) Change Location
![]() | Sunrise 6:49 AM Sunset 7:48 PM Moonrise 2:20 AM Moonset 1:33 PM |
AMZ651 Coastal Waters From Deerfield Beach To Ocean Reef Fl Out 20 Nm- Waters From Deerfield Beach To Ocean Reef Fl From 20 To 60 Nm Excluding The Territorial Waters Of Bahamas- 1000 Pm Edt Mon Apr 21 2025
.small craft should exercise caution - .
Rest of tonight - E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft, occasionally to 5 ft. Wave detail: E 3 ft at 5 seconds and nw 1 foot at 5 seconds. Intracoastal waters a moderate chop.
Tue - E winds 10 to 15 kt. Seas 2 to 3 ft. Wave detail: E 2 ft at 5 seconds. Intracoastal waters a moderate chop.
Tue night - E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave detail: se 2 ft at 4 seconds. Intracoastal waters a moderate chop.
Wed - E winds 10 to 15 kt. Seas 2 to 3 ft. Wave detail: E 2 ft at 4 seconds. Intracoastal waters a moderate chop.
Wed night through Sat - NE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft, occasionally to 5 ft. Wave detail: ne 4 ft at 5 seconds. Intracoastal waters choppy in exposed areas.
Sat night - E winds 10 to 15 kt, diminishing to 5 to 10 kt late. Seas around 2 ft. Wave detail: ne 2 ft at 5 seconds. Intracoastal waters a moderate chop.
AMZ600 1000 Pm Edt Mon Apr 21 2025
Synopsis for jupiter inlet to ocean reef fl out to 60 nm and for east cape sable to bonita beach fl out to 60 nm -
cautionary conditions across the gulf and atlantic waters will persist through much of the work week. So while boating conditions are expected to slightly improve, they're expected to remain at least somewhat hazardous to small craft.
gulf stream hazards: none.
the approximate location of the west wall of the gulf stream as of apr 19, 2025 - .
1 nautical miles north northeast of fowey rocks. 10 nautical miles southeast of port everglades. 3 nautical miles east northeast of lake worth. 6 nautical miles east southeast of jupiter inlet.
this data courtesy of the naval oceanographic office.
cautionary conditions across the gulf and atlantic waters will persist through much of the work week. So while boating conditions are expected to slightly improve, they're expected to remain at least somewhat hazardous to small craft.
gulf stream hazards: none.
the approximate location of the west wall of the gulf stream as of apr 19, 2025 - .
1 nautical miles north northeast of fowey rocks. 10 nautical miles southeast of port everglades. 3 nautical miles east northeast of lake worth. 6 nautical miles east southeast of jupiter inlet.
this data courtesy of the naval oceanographic office.
7 Day Forecast for Marine Location Near Key Biscayne village, FL

NEW! Add second zone forecast
Key Biscayne Yacht Club Click for Map Mon -- 02:39 AM EDT Moonrise Mon -- 04:05 AM EDT 1.79 feet High Tide Mon -- 06:52 AM EDT Sunrise Mon -- 10:45 AM EDT 0.51 feet Low Tide Mon -- 01:30 PM EDT Moonset Mon -- 04:22 PM EDT 1.73 feet High Tide Mon -- 07:46 PM EDT Sunset Mon -- 11:11 PM EDT 0.30 feet Low Tide Tide / Current data from XTide NOT FOR NAVIGATION |   |
Key Biscayne Yacht Club, Biscayne Bay, Florida, Tide feet
12 am |
0.7 |
1 am |
1 |
2 am |
1.4 |
3 am |
1.7 |
4 am |
1.8 |
5 am |
1.7 |
6 am |
1.5 |
7 am |
1.3 |
8 am |
1 |
9 am |
0.7 |
10 am |
0.5 |
11 am |
0.5 |
12 pm |
0.6 |
1 pm |
0.9 |
2 pm |
1.3 |
3 pm |
1.6 |
4 pm |
1.7 |
5 pm |
1.7 |
6 pm |
1.5 |
7 pm |
1.3 |
8 pm |
0.9 |
9 pm |
0.6 |
10 pm |
0.4 |
11 pm |
0.3 |
Miami Harbor Entrance Click for Map Mon -- 12:40 AM EDT 1.61 knots Max Flood Mon -- 02:39 AM EDT Moonrise Mon -- 04:38 AM EDT -0.00 knots Slack Mon -- 06:37 AM EDT -0.89 knots Max Ebb Mon -- 06:51 AM EDT Sunrise Mon -- 10:49 AM EDT 0.00 knots Slack Mon -- 01:07 PM EDT 1.39 knots Max Flood Mon -- 01:29 PM EDT Moonset Mon -- 04:55 PM EDT -0.00 knots Slack Mon -- 07:06 PM EDT -0.98 knots Max Ebb Mon -- 07:46 PM EDT Sunset Mon -- 11:13 PM EDT 0.00 knots Slack Tide / Current data from XTide NOT FOR NAVIGATION |   |
Miami Harbor Entrance, Florida Current, knots
12 am |
1.5 |
1 am |
1.6 |
2 am |
1.4 |
3 am |
1.1 |
4 am |
0.5 |
5 am |
-0.3 |
6 am |
-0.8 |
7 am |
-0.9 |
8 am |
-0.8 |
9 am |
-0.7 |
10 am |
-0.5 |
11 am |
0.1 |
12 pm |
1 |
1 pm |
1.4 |
2 pm |
1.3 |
3 pm |
1.1 |
4 pm |
0.7 |
5 pm |
-0.1 |
6 pm |
-0.8 |
7 pm |
-1 |
8 pm |
-0.9 |
9 pm |
-0.8 |
10 pm |
-0.7 |
11 pm |
-0.2 |
Area Discussion for Miami-South Florida, FL
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FXUS62 KMFL 220509 AFDMFL
Area Forecast Discussion National Weather Service Miami FL 109 AM EDT Tue Apr 22 2025
New AVIATION
SHORT TERM
(Rest of today through Tuesday)
Issued at 1206 PM EDT Mon Apr 21 2025
Stout mid-level ridging remains established across the region today as a subsequent (impressively) strong subsidence inversion remains in place with copious amounts of dry air aloft. Take your pick of ACARS data from any of the reporting airports from South Florida this afternoon and you will see the same general representation over and over again, dry air throughout the vertical column with a very strong capping inversion at roughly 825-850mb and a small moist level at 250mb (representative of upper level cloud cover). For the remainder of the day, easterly winds will remain breezy across the region with a widespread/overspreading low level cumulus field briskly advecting from east to west across the area. The sliver of moisture in the upper levels will coincide with some thin upper level cirrus drifting from west to east aloft from time to time.
A series of shortwaves propagating along in the subtropical jet- stream currently oriented in a southwest to northeast configuration over the central to northeastern United States will gradually erode the periphery of the ridge and result in slow weakening of this persistent mid-level feature. Although the mid-level ridge will continue to weaken, our prevailing weather pattern will remain status quo as surface ridging continues a surface easterly flow regime.
Highs each afternoon will be in the low to middle 80s across the east coast, with low 90s expected across portions of western south Florida. Lows will drop into the low 60s across the interior and west coasts (away from the easterly maritime influence) with temps in the low 70s along the east coast.
LONG TERM
(Tuesday night through next Sunday)
Issued at 212 PM EDT Mon Apr 21 2025
Models depict a busy weather pattern across much of the Nation to start the long term with a trough/low complex moving into the E CONUS and pushing further south the ridge across the region. But the ridge remains strong enough to keep SoFlo under overall subsidence, with model soundings still showing PWATs below or around 1 inch, and generally dry air above 850mb through Thursday morning. Therefore, dry and stable weather should continue through that time.
By Thursday afternoon and through Friday, ensembles and Euro guidance show fair agreement in having the aforementioned trough pushing the ridge further to the ENE of SoFlo while eroding it. This will allow for moisture to begin filtering into the area, especially with returning robust onshore flow/sea breeze circulations in the afternoon hours. Unfortunately, the air mass is not expected to modify enough to result in significant rain activity. Latest POps/Wx coverage remains in the 15-25% range Thursday and Friday, and 20-30% by Saturday. Can't rule out an isolated thunderstorm or two with daytime heating, and with sea breeze boundaries becoming the main focal point for taller/deeper convection.
Expect afternoon high temperatures to remain in the mid to upper 80s through much of SoFlo, except for a few interior locations potentially reaching the low 90s at times. Morning lows should remain in the mid-upper 60s inland, and upper 60s to low 70s near the coasts.
AVIATION
(06Z TAFS)
Issued at 108 AM EDT Tue Apr 22 2025
VFR will prevail through the TAF with moderate easterly flow continuing. A brief wind shift onshore will be likely at APF later this afternoon.
MARINE
Issued at 1206 PM EDT Mon Apr 21 2025
Cautionary conditions will persist through the remainder of the week across the Atlantic and Gulf waters. So while boating conditions are expected to slightly improve, they're expected to remain at least somewhat hazardous to small craft through the end of the week.
BEACHES
Issued at 1206 PM EDT Mon Apr 21 2025
Moderate easterly flow will continue through the week and will support a higher than usual risk for life threatening rip currents.
A High Rip Current Risk remains in effect today for the east coast of South Florida.
PRELIMINARY POINT TEMPS/POPS
Miami 83 72 83 72 / 0 0 0 0 West Kendall 85 69 86 69 / 0 0 0 0 Opa-Locka 85 71 85 71 / 0 0 0 0 Homestead 83 71 83 71 / 0 0 0 0 Fort Lauderdale 81 72 82 72 / 0 0 0 0 N Ft Lauderdale 82 72 83 71 / 0 0 0 0 Pembroke Pines 86 72 87 72 / 0 0 0 0 West Palm Beach 83 70 83 70 / 0 0 0 0 Boca Raton 83 71 83 71 / 0 0 0 0 Naples 85 66 87 66 / 0 0 0 0
MFL WATCHES/WARNINGS/ADVISORIES
FL...High Rip Current Risk through this evening for FLZ168-172-173.
AM...None.
GM...None.
Area Forecast Discussion National Weather Service Miami FL 109 AM EDT Tue Apr 22 2025
New AVIATION
SHORT TERM
(Rest of today through Tuesday)
Issued at 1206 PM EDT Mon Apr 21 2025
Stout mid-level ridging remains established across the region today as a subsequent (impressively) strong subsidence inversion remains in place with copious amounts of dry air aloft. Take your pick of ACARS data from any of the reporting airports from South Florida this afternoon and you will see the same general representation over and over again, dry air throughout the vertical column with a very strong capping inversion at roughly 825-850mb and a small moist level at 250mb (representative of upper level cloud cover). For the remainder of the day, easterly winds will remain breezy across the region with a widespread/overspreading low level cumulus field briskly advecting from east to west across the area. The sliver of moisture in the upper levels will coincide with some thin upper level cirrus drifting from west to east aloft from time to time.
A series of shortwaves propagating along in the subtropical jet- stream currently oriented in a southwest to northeast configuration over the central to northeastern United States will gradually erode the periphery of the ridge and result in slow weakening of this persistent mid-level feature. Although the mid-level ridge will continue to weaken, our prevailing weather pattern will remain status quo as surface ridging continues a surface easterly flow regime.
Highs each afternoon will be in the low to middle 80s across the east coast, with low 90s expected across portions of western south Florida. Lows will drop into the low 60s across the interior and west coasts (away from the easterly maritime influence) with temps in the low 70s along the east coast.
LONG TERM
(Tuesday night through next Sunday)
Issued at 212 PM EDT Mon Apr 21 2025
Models depict a busy weather pattern across much of the Nation to start the long term with a trough/low complex moving into the E CONUS and pushing further south the ridge across the region. But the ridge remains strong enough to keep SoFlo under overall subsidence, with model soundings still showing PWATs below or around 1 inch, and generally dry air above 850mb through Thursday morning. Therefore, dry and stable weather should continue through that time.
By Thursday afternoon and through Friday, ensembles and Euro guidance show fair agreement in having the aforementioned trough pushing the ridge further to the ENE of SoFlo while eroding it. This will allow for moisture to begin filtering into the area, especially with returning robust onshore flow/sea breeze circulations in the afternoon hours. Unfortunately, the air mass is not expected to modify enough to result in significant rain activity. Latest POps/Wx coverage remains in the 15-25% range Thursday and Friday, and 20-30% by Saturday. Can't rule out an isolated thunderstorm or two with daytime heating, and with sea breeze boundaries becoming the main focal point for taller/deeper convection.
Expect afternoon high temperatures to remain in the mid to upper 80s through much of SoFlo, except for a few interior locations potentially reaching the low 90s at times. Morning lows should remain in the mid-upper 60s inland, and upper 60s to low 70s near the coasts.
AVIATION
(06Z TAFS)
Issued at 108 AM EDT Tue Apr 22 2025
VFR will prevail through the TAF with moderate easterly flow continuing. A brief wind shift onshore will be likely at APF later this afternoon.
MARINE
Issued at 1206 PM EDT Mon Apr 21 2025
Cautionary conditions will persist through the remainder of the week across the Atlantic and Gulf waters. So while boating conditions are expected to slightly improve, they're expected to remain at least somewhat hazardous to small craft through the end of the week.
BEACHES
Issued at 1206 PM EDT Mon Apr 21 2025
Moderate easterly flow will continue through the week and will support a higher than usual risk for life threatening rip currents.
A High Rip Current Risk remains in effect today for the east coast of South Florida.
PRELIMINARY POINT TEMPS/POPS
Miami 83 72 83 72 / 0 0 0 0 West Kendall 85 69 86 69 / 0 0 0 0 Opa-Locka 85 71 85 71 / 0 0 0 0 Homestead 83 71 83 71 / 0 0 0 0 Fort Lauderdale 81 72 82 72 / 0 0 0 0 N Ft Lauderdale 82 72 83 71 / 0 0 0 0 Pembroke Pines 86 72 87 72 / 0 0 0 0 West Palm Beach 83 70 83 70 / 0 0 0 0 Boca Raton 83 71 83 71 / 0 0 0 0 Naples 85 66 87 66 / 0 0 0 0
MFL WATCHES/WARNINGS/ADVISORIES
FL...High Rip Current Risk through this evening for FLZ168-172-173.
AM...None.
GM...None.
Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
VAKF1 - 8723214 - Virginia Key, FL | 2 mi | 55 min | E 12G | 76°F | 77°F | 30.12 | ||
BBSF1 | 18 mi | 103 min | 79°F | |||||
PEGF1 | 27 mi | 55 min | E 15G | 76°F | 30.10 | |||
MDKF1 | 31 mi | 133 min | 77°F | |||||
HCEF1 - Highway Creek, FL | 34 mi | 133 min | 78°F | |||||
MNBF1 | 35 mi | 133 min | 77°F | |||||
LBSF1 - Little Blackwater, FL | 36 mi | 133 min | 77°F | |||||
LSNF1 - Long Sound, FL | 36 mi | 133 min | 79°F | |||||
THRF1 | 36 mi | 133 min | 78°F | |||||
JBYF1 | 38 mi | 133 min | 78°F | |||||
BWSF1 - Blackwater Sound, FL | 39 mi | 133 min | 77°F | |||||
TCVF1 - Trout Cove, FL | 39 mi | 133 min | 78°F | |||||
DKKF1 - Duck Key, FL | 40 mi | 133 min | 78°F | |||||
TRRF1 - Taylor River, FL | 42 mi | 133 min | 82°F | |||||
LMDF1 - Little Madeira, FL | 44 mi | 133 min | 77°F | |||||
BNKF1 - Butternut Key, FL | 46 mi | 133 min | 78°F | |||||
TBYF1 | 48 mi | 133 min | 80°F |
Wind History for Virginia Key, FL
toggle option: (graph/table)
Airport Reports
Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Air | DewPt | RH | inHg |
KMIA MIAMI INTL,FL | 9 sm | 19 min | ESE 10 | 10 sm | Overcast | 75°F | 64°F | 69% | 30.10 | |
KTMB MIAMI EXECUTIVE,FL | 14 sm | 19 min | E 11 | 10 sm | Clear | 73°F | 64°F | 73% | 30.10 | |
KOPF MIAMIOPA LOCKA EXECUTIVE,FL | 16 sm | 19 min | ESE 11 | 10 sm | A Few Clouds | 75°F | 64°F | 69% | 30.10 | |
KHST HOMESTEAD ARB,FL | 18 sm | 17 min | E 10 | 10 sm | Clear | 75°F | 63°F | 65% | 30.07 | |
KHWO NORTH PERRY,FL | 21 sm | 19 min | ESE 10 | 10 sm | Clear | 77°F | 63°F | 61% | 30.10 |
Link to 1 hour of 5 minute data for KMIA
Terminal Aerodrome Forecast (TAF) for KMIA
Wind History Graph: MIA
(wind in knots)GEOS Local Image of Southeast
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Miami, FL,

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