Climate and monthly weather forecastSouth Beach, FL
Climate and monthly weather forecast
Weather in January
January, like December, is an agreeable winter month in South Beach, Florida, with an average temperature fluctuating between 59.5°F (15.3°C) and 70.2°F (21.2°C). With average high and low temperatures of 70.2°F (21.2°C) and 59.5°F (15.3°C) respectively, January is South Beach's coldest month. Weather in January »Weather in February
The last month of the winter, February, is another pleasant month in South Beach, Florida, with an average temperature fluctuating between 72.3°F (22.4°C) and 61.9°F (16.6°C). With the onset of February, the average high-temperature stands at a still agreeable 72.3°F (22.4°C), closely aligned with January's 70.2°F (21.2°C). Weather in February »Weather in March
March, the first month of the spring in South Beach, is a moderately hot month, with an average temperature fluctuating between 63.7°F (17.6°C) and 74.7°F (23.7°C). The arrival of March brings an average high-temperature of a warm 74.7°F (23.7°C), closely following the temperature pattern of February. Weather in March »Weather in April
April, the same as March, is a moderately hot spring month in South Beach, Florida, with an average temperature fluctuating between 79.2°F (26.2°C) and 69.3°F (20.7°C). April's onset sees an average high-temperature of a still warm 79.2°F (26.2°C), exhibiting a slight fluctuation from the previous month. Weather in April »Weather in May
May, the last month of the spring in South Beach, is also a moderately hot month, with an average temperature ranging between min 73°F (22.8°C) and max 82.4°F (28°C). The shift into May finds South Beach at an average high-temperature of a still moderately hot 82.4°F (28°C), closely comparable to April's conditions. Weather in May »Weather in June
June, the first month of the summer in South Beach, is also a moderately hot month, with temperature in the range of an average high of 85.5°F (29.7°C) and an average low of 76.6°F (24.8°C). In June, South Beach notes an average high-temperature of a still moderately hot 85.5°F (29.7°C), hardly different from the preceding month. Weather in June »Weather in July
July in South Beach, Florida, is a tropical summer month, with an average temperature fluctuating between 78.1°F (25.6°C) and 86.7°F (30.4°C). July experiences an average high-temperature of a hot 86.7°F (30.4°C), barely different from June's 85.5°F (29.7°C). Weather in July »Weather in August
The last month of the summer, August, is also a hot month in South Beach, Florida, with temperature in the range of an average high of 87.4°F (30.8°C) and an average low of 78.6°F (25.9°C). In South Beach, temperatures reach their average annual highs in August, measuring 87.4°F (30.8°C) and a minimum average of 78.6°F (25.9°C). Throughout August, the heat index is estimated at an extremely hot 104°F (40°C). Weather in August »Weather in September
September, the first month of the autumn in South Beach, is also a moderately hot month, with an average temperature ranging between min 77.4°F (25.2°C) and max 85.5°F (29.7°C). The introduction of September notes a subtle temperature variation to a moderately hot 85.5°F (29.7°C) from August's 87.4°F (30.8°C). Weather in September »Weather in October
October, the same as September, is a moderately hot autumn month in South Beach, Florida, with temperature in the range of an average high of 81.7°F (27.6°C) and an average low of 74.1°F (23.4°C). The weather during October records an average high-temperature of a still warm 81.7°F (27.6°C), closely mirroring the preceding month. Weather in October »Weather in November
The last month of the autumn, November, is also a moderately hot month in South Beach, Florida, with an average temperature fluctuating between 67.6°F (19.8°C) and 76.3°F (24.6°C). As October shifts into November, a minor alteration in temperatures is observed, with average highs reducing from 81.7°F (27.6°C) to a still moderately hot 76.3°F (24.6°C). Weather in November »Weather in December
The first month of the winter, December, is also a moderately hot month in South Beach, Florida, with an average temperature ranging between min 64°F (17.8°C) and max 73.6°F (23.1°C). December records an average high-temperature of a still moderately hot 73.6°F (23.1°C), indicating a minor variation from the preceding month. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
South Beach, FL
The warmest month (with the highest average high temperature) is August (87.4°F).
The month with the lowest average high temperature is January (70.2°F).
The month with the highest average low temperature is August (78.6°F).
The coldest month (with the lowest average low temperature) is January (59.5°F).
Average pressure
South Beach, FL
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
30.03"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
30.01"Hg
- Average pressure in July:
30.03"Hg - Average pressure in August:
30"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
29.97"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed
South Beach, FL
- Average wind speed in January:
9.9mph - Average wind speed in February:
9.3mph - Average wind speed in March:
9.7mph - Average wind speed in April:
9.6mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.2mph
- Average wind speed in July:
6.8mph - Average wind speed in August:
7mph - Average wind speed in September:
7.8mph - Average wind speed in October:
9.5mph - Average wind speed in November:
9.9mph - Average wind speed in December:
9.4mph
The windiest months (with the highest average wind speed) are January and November (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity
South Beach, FL
The months with the highest relative humidity are June, July and August (79%).
The month with the lowest relative humidity is March (72%).
Average rainfall
South Beach, FL
- Average rainfall in January:
0.51" - Average rainfall in February:
0.39" - Average rainfall in March:
0.43" - Average rainfall in April:
0.67" - Average rainfall in May:
1.46" - Average rainfall in June:
1.42"
- Average rainfall in July:
1.77" - Average rainfall in August:
2.48" - Average rainfall in September:
1.26" - Average rainfall in October:
1.22" - Average rainfall in November:
0.83" - Average rainfall in December:
0.71"
The wettest month (with the highest rainfall) is August (2.48").
The driest month (with the least rainfall) is February (0.39").
Average rainfall days
South Beach, FL
- Average rainfall days in January:
7.8 days - Average rainfall days in February:
7.7 days - Average rainfall days in March:
9.5 days - Average rainfall days in April:
10.3 days - Average rainfall days in May:
11.7 days - Average rainfall days in June:
13.9 days
- Average rainfall days in July:
19.3 days - Average rainfall days in August:
20.2 days - Average rainfall days in September:
19.6 days - Average rainfall days in October:
12.9 days - Average rainfall days in November:
10.9 days - Average rainfall days in December:
9.4 days
The month with the highest number of rainy days is August (20.2 days).
The month with the least rainy days is February (7.7 days).
Average sea temperature
South Beach, FL
The best month for swimming (with the highest average sea temperature) is August (84.8°F).
The coldest months (with the lowest average sea temperature) are January and February (72.3°F).
Average daylight / Average sunshine
South Beach, FL
- Average daylight in January:
10h and 36min - Average daylight in February:
11h and 12min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 48min - Average daylight in May:
13h and 30min - Average daylight in June:
13h and 54min
- Average daylight in July:
13h and 42min - Average daylight in August:
13h and 6min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 30min - Average daylight in November:
10h and 48min - Average daylight in December:
10h and 24min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in January:
6h and 0min - Average sunshine in February:
8h and 12min - Average sunshine in March:
8h and 30min - Average sunshine in April:
9h and 54min - Average sunshine in May:
10h and 36min - Average sunshine in June:
10h and 48min
- Average sunshine in July:
10h and 54min - Average sunshine in August:
10h and 48min - Average sunshine in September:
9h and 0min - Average sunshine in October:
6h and 54min - Average sunshine in November:
6h and 6min - Average sunshine in December:
6h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).
Average sunshine days
South Beach, FL
- Average sunshine days in January:
18.8 days - Average sunshine days in February:
17.5 days - Average sunshine days in March:
19.5 days - Average sunshine days in April:
15.9 days - Average sunshine days in May:
14.1 days - Average sunshine days in June:
9.4 days
- Average sunshine days in July:
7.3 days - Average sunshine days in August:
5.1 days - Average sunshine days in September:
6.3 days - Average sunshine days in October:
13.3 days - Average sunshine days in November:
13.5 days - Average sunshine days in December:
16.6 days
The month with the most sunshine days is March (19.5 days).
The month with the least sunshine days is August (5.1 days).
Average UV index
South Beach, FL
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February and December (UV index 5).
Average cloud cover
South Beach, FL
The month with the most cloud cover is November (Cloud cover 36).
The months with the least cloud cover are May and August (Cloud cover 27).
Average visibility
South Beach, FL
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





