Measurements:
°C
°F
Miami Beach
90°F
NW 11 mph
Feels like: 100°F
Precip: 19%
World Resorts USA Miami Beach Weather

Miami Beach Sea Water Temperature

Current Sea Water Temperature:
+92.4°F
Maximum Sea Water Temperature in August: 93.2°F
Minimum Sea Water Temperature in August: 87.0°F
Average water temperature in August: 90.5°F

Sea Water Temperature for the Last 10 Days:

August 25 92.4°F August 20 92.8°F
August 24 91.4°F August 19 92.4°F
August 23 91.6°F August 18 91.6°F
August 22 92.4°F August 17 92.0°F
August 21 92.2°F August 16 91.2°F

When is the Warmest Sea for Miami Beach?

According to our data for the last three years for Miami Beach the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Miami Beach was 91.0°F. The maximum and minimum values were 89.2°F and 92.8°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Miami Beach was 91.1°F. The maximum and minimum values were 89.2°F and 92.4°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Miami Beach was 90.2°F. The maximum and minimum values were 89.0°F and 91.4°F respectively.

Best Time to Visit Miami Beach
The most sunny months:
March 14 days
April 14 days
February 12 days
The most warm months:
August 92.8 °F
July 92.2 °F
September 90.9 °F
Warmest sea temperature:
August 90.6 °F
July 89.8 °F
September 89.5 °F
The most cold months:
January 75.4 °F
February 77.9 °F
December 79.1 °F
The most rainy months:
July 10 days
August 9 days
June 8 days
The most windy months:
November 13 mph
March 12 mph
April 12 mph

Miami Beach on the Weather Map

USA Resorts:
NAME
Boston +80
Chicago +80
Hawaii +84
Houston +106
Las Vegas +116
Los Angeles +96
Maui +70
Miami +92
Myrtle Beach +84
New York +82
San Diego +96
San Francisco +64
Santa Monica +86
Sarasota +92
Washington +84
24 Hours Weather Forecast
Miami Beach
Local time: 17:48
25 aug, tuesday
1800 90°F
NW
11 mph
2100 88°F
W
12 mph
26 aug, wednesday
0000 88°F
W
9 mph
0300 90°F
W
11 mph
0600 88°F
NW
11 mph
0900 90°F
NW
9 mph
1200 92°F
NW
10 mph
1500 94°F
NW
11 mph