World Resorts USA Miami Beach Weather

Miami Beach Sea Temperature in September

Average sea water temperature in September:
+85.5°F
Minimum sea water temperature in September: 88.9°F
Maximum sea water temperature in September: 82.9°F

Daily sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 86.2°F. The highest and lowest sea temperatures during the month were 87.3°F and 85.1°F.

Monthly sea water temperature in Miami Beach, °F

Which USA resorts have warmest sea in September?

Place name September 2025 September 2024
Key West 86.9°F 87.4°F
Key Largo 86.6°F 87.1°F
Fort Lauderdale 86.4°F 86.4°F
Everglades 86.2°F 87.0°F
West Palm Beach 86.2°F 86.4°F
Miami Beach 86.1°F 86.3°F
Naples 86.1°F 87.2°F
South Padre Island 86.0°F 85.8°F
Corpus Christi 85.8°F 84.7°F
Miami 85.8°F 86.0°F
Sanibel Island 85.7°F 87.0°F
Galveston 85.5°F 83.7°F
Houston 84.9°F 83.4°F
Siesta Key 84.9°F 86.8°F
Sarasota 84.8°F 86.7°F
Cocoa Beach 84.6°F 85.2°F
Tampa 84.3°F 86.0°F
New Orleans 84.3°F 82.9°F
St. Petersburg 84.1°F 86.1°F
Orange Beach 84.0°F 84.1°F

Best time for vacation in Miami Beach

Sunniest months:
March 13 days
April 13 days
May 12 days
Warmest months:
August 88.5 °F
July 87.9 °F
September 86.8 °F
Warmest sea temp:
August 86.5 °F
July 85.8 °F
September 85.5 °F
Coldest months:
January 72.9 °F
February 75.4 °F
December 76.2 °F
Rainiest months:
July 10 days
August 9 days
June 8 days
Windiest months:
November 13.1 mph
March 12.8 mph
October 12.6 mph

Miami Beach on a weather map

Miami Beach
+70°F
NW 12 mph
Feels like: +70°F
Precip.: 0%
Places in USA:
Name
°F
+39°F
+70°F
+70°F
+61°F
+57°F
+57°F
+70°F
+61°F
+25°F
+57°F
+55°F
+48°F
+50°F
+66°F
+28°F
24 Hours Forecast
Miami Beach
Local time: 03:42
February 26, thursday
0600
70°F
NW
12 mph
0900
70°F
NW
11 mph
1200
73°F
NW
11 mph
1500
73°F
NW
11 mph
1800
75°F
W
9 mph
2100
73°F
W
13 mph
February 27, friday
0000
72°F
W
11 mph
0300
72°F
NW
8 mph
Units of measurement: °C / °F