May weather forecast and climate
Miami, FL

Stunning layout of the Miami Coast in Florida, with a beautiful, clean beach, and perfect cityscape and skyline
Stunning layout of the Miami Coast in Florida, with a beautiful, clean beach, and perfect cityscape and skyline
Increased rain at 5.9" (149.9mm) in May marks the season's steady transition from spring to summer. The weather in May is warm and a little wet, but hardly worth any significant concerns. The average temperatures range from a low of 72.9°F (22.7°C) to a high of 87°F (30.6°C), and the sun rays reach the land daily for 9.7 hours. The weather feels noticeably warmer, especially for people from temperate zones.
Hitting a few golf or tennis balls in the morning may not cause that much sweat as it is relatively less humid.

What is the temperature in May in Miami?

The average high-temperature, in May, is 87.1°F (30.6°C), while the average low-temperature is 72.9°F (22.7°C).

How much does it rain in Miami in May?

In Miami, Florida, during May, the rain falls for 10 days and regularly aggregates up to 5.9" (150mm) of precipitation.

What is the sea water temperature in May in Miami?

The average seawater temperature, in May, in Miami, is 81.1°F (27.3°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.
Average temperature in May - Miami, FL
  • Average high temperature in May: 30.6°C

The warmest month (with the highest average high temperature) is August (32.8°C).
The month with the lowest average high temperature is January (24.7°C).

  • Average low temperature in May: 22.7°C

Months with the highest average low temperature are July and August (25.2°C).
The coldest month (with the lowest average low temperature) is January (15.5°C).

Average humidity in May - Miami, FL
  • Average humidity in May: 71.6%

The month with the highest relative humidity is September (77.8%).
The month with the lowest relative humidity is April (67.3%).

Average rainfall in May - Miami, FL
  • Average rainfall in May: 150mm

The wettest month (with the highest rainfall) is June (201mm).
The driest month (with the lowest rainfall) is December (43mm).

Average rainfall days in May - Miami, FL
  • Average rainfall days in May: 10 days

The month with the highest number of rainy days is August (18.9 days).
The month with the lowest number of rainy days is April (6.4 days).

Average sea temperature in May - Miami, FL
  • Average sea temperature in May: 27.3°C

The best month for swimming (with the highest average sea temperature) is August (30.3°C).
The coldest month (with the lowest average sea temperature) is February (23.3°C).

Average daylight in May / Average sunshine in May - Miami, FL
  • Average daylight in May: 13.4h

The month with the longest days is June (Average daylight: 13.7h).
The month with shortest days is December (Average daylight: 10.5h).

  • Average sunshine in May: 9.7h

The month with most sunshine is July (Average sunshine: 10h).
The month with least sunshine is December (Average sunshine: 7h).

Average UV index in May - Miami, FL
  • Average UV index in May: 11

Months with the highest UV index are April, May, June, July and August (UV index 11).
The month with the lowest UV index is December (UV index 5).

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