Marine Weather Net

Surfside, FL Weather Forecast


Marine Forecast: Biscayne Bay


Surfside, Florida

 Lat: 25.88N, Lon: 80.13W

Current Conditions Updated: 453 PM EDT TUE AUG 25 2026

Lightning Observed
Temp: 89°F
  • Humidity:
  • 61%
  • Winds:
  • 7 MPH SE
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30 in.
  • Dewpoint:
  • 74°F
  • Heat index:
  • 98°F

  • Sunrise:
  • 6:56 AM EDT
  • Sunset:
  • 7:45 PM EDT
  • Moonrise:
  • 6:25 PM EDT
  • Moonset:
  • 4:28 AM EDT

TONIGHT

CHANCE OF T-STORM
Lo: 81°F
Precip: 50%

WEDNESDAY

MOSTLY SUNNY
Hi: 91°F
Lo: 85°F
Precip: 60%

THURSDAY

MOSTLY SUNNY
Hi: 91°F
Lo: 85°F
Precip: 50%

FRIDAY

MOSTLY SUNNY
Hi: 91°F
Lo: 80°F
Precip: 40%
Weather Forecast In Detail:
Forecast Issued: 222 PM EDT Tue Aug 25 2026

Tonight...Partly cloudy. A slight chance of showers and thunderstorms this evening, then a chance of showers and thunderstorms after midnight. Lows in the lower 80s. East winds 5 to 10 mph. Chance of rain 50 percent.
Wednesday...Mostly sunny with a chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. Humid with highs in the lower 90s. Southeast winds 5 to 10 mph. Chance of rain 60 percent. Heat index values up to 105.
Wednesday Night...Mostly cloudy in the evening, then partly cloudy with a chance of showers and thunderstorms after midnight. Humid with lows in the lower 80s. Southeast winds 5 to 10 mph. Chance of rain 50 percent.
Thursday...Mostly sunny with a chance of showers and thunderstorms. Humid with highs in the lower 90s. Southeast winds 5 to 10 mph. Chance of rain 50 percent. Heat index values up to 106.
Thursday Night...Partly cloudy. A chance of showers and thunderstorms in the evening. Humid with lows in the lower 80s. East winds 5 to 10 mph. Chance of rain 50 percent.
Friday...Mostly sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 40 percent. Heat index values up to 105.
Friday Night...Partly cloudy with a chance of showers and thunderstorms. Lows around 80. Chance of rain 40 percent.
Saturday...Mostly sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 50 percent. Heat index values up to 110.
Saturday Night...Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. Chance of rain 50 percent. Heat index values up to 105 early.
Sunday...Mostly sunny. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Highs in the lower 90s. Chance of rain 60 percent. Heat index values up to 110.
Sunday Night...Partly cloudy. Showers and thunderstorms likely, mainly in the evening. Lows in the lower 80s. Chance of rain 60 percent. Heat index values up to 105 early.
Monday...Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. Highs in the lower 90s. Chance of rain 60 percent. Heat index values up to 105.
Monday Night...Partly cloudy. Showers and thunderstorms likely, mainly in the evening. Lows around 80. Chance of rain 60 percent. Heat index values up to 105 early.
Tuesday...Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. Highs around 90. Chance of rain 60 percent. Heat index values up to 105.
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