Miami
Florida, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Miami, FL

The stunning layout of the Miami Coast in Florida, with a beautiful, clean beach, and perfect cityscape and skyline
The 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). In May, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that combines relative humidity and air temperature, is estimated at 98.6°F (37°C).

What is the average humidity in May in Miami?

The average relative humidity in May in Miami is 71.6%.

How many days does it rain in May in Miami?

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

How warm is the water in May in Miami?

In Miami, Florida, the average seawater temperature in May 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.

How many hours of daylight does Miami have in May?

In Miami, Florida, the average length of the day in May is 13.4h.

How long on average sun shines in May in Miami?

In May, the average sunshine in Miami is 9.7h.

When is the highest UV index in Miami?

April through August, with an average maximum UV index of 11, are months with the highest UV index in Miami.

What is the UV index intensity in May in Miami?

In May, the average daily maximum UV index in Miami is 11. A UV Index reading of 11, and higher, represents an ultimate hazard to health from the exposure to the Sun's UV radiation.
Average temperature in May - Miami, FL
  • Average high temperature in May: 87°F

The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is January (76.4°F).

  • Average low temperature in May: 72.9°F

The month with the highest average low temperature is August (77.4°F).
The coldest month (with the lowest average low temperature) is January (59.9°F).

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: 5.9"

The wettest month (with the highest rainfall) is June (7.9").
The driest month (with the lowest rainfall) is December (1.7").

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: 81.1°F

The best month for swimming (with the highest average sea temperature) is August (86.5°F).
The coldest month (with the lowest average sea temperature) is February (74°F).

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).