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

July weather forecast and climate
Miami, FL

July is a tropical summer month in Miami, Florida, with average temperature ranging between min 81.9°F (27.7°C) and max 86.5°F (30.3°C).

Temperature

In Miami, the average high-temperature is practically the same as in June - a tropical 86.5°F (30.3°C). In Miami, Florida, the average low-temperature is 81.9°F (27.7°C).

Heat index

The average heat index in July is evaluated at a torrid 97.3°F (36.3°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'feels like', or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like metabolic differences, differences in body mass, height, and shape, wind, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in Miami, Florida, is 72%.

Rainfall

In Miami, during 21.4 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. In Miami, during the entire year, the rain falls for 182.7 days and collects up to 16.38" (416mm) of precipitation.

Ocean temperature

In Miami, the average seawater temperature is 85.3°F (29.6°C).
Note: For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In Miami, the average length of the day is 13.6h.

Sunshine

With an average of 11.1h of sunshine, July has the most sunshine of the year.

UV index

Months with the highest UV index in Miami are May through October, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from the exposure to the Sun's UV radiation for average individuals.
Note: In July, the average maximum UV index of 7 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in July in Miami?

In July, the average high-temperature is 86.5°F (30.3°C), and the average low-temperature is 81.9°F (27.7°C). In July, the average heat index (a.k.a. 'real feel', 'apparent temperature'), that factores the actual air temperature with the relative humidity, is appraised at 97.3°F (36.3°C).

What is the average humidity in July in Miami?

The average relative humidity in July in Miami, Florida, is 72%.

How much does it rain in Miami in July?

In July, the rain falls for 21.4 days. Throughout July, 2.44" (62mm) of precipitation is accumulated.

What is the water temperature in July in Miami?

In July, the average ocean temperature is 85.3°F (29.6°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Miami have in July?

In July, the average length of the day is 13.6h.

What month has the most sunshine in Miami?

With an average of 11.1h of sunshine, July has the most sunshine of the year in Miami.

How many hours of sunshine does Miami have in July?

In Miami, the average sunshine in July is 11.1h.

What is the month with the highest UV index in Miami?

May through October, with an average maximum UV index of 7, are months with the highest UV index in Miami, Florida.

What is the UV index reading in July in Miami?

In Miami, Florida, the average daily maximum UV index in July is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV rays.
Average temperature in July - Miami, FL
  • Average high temperature in July: 30.3°C

The warmest month (with the highest average high temperature) is August (30.6°C).
The month with the lowest average high temperature is January (22.8°C).

  • Average low temperature in July: 27.7°C

The month with the highest average low temperature is August (28.1°C).
The coldest month (with the lowest average low temperature) is January (18.4°C).

Average humidity in July - Miami, FL
  • Average humidity in July: 72%

The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is March (70%).

Average rainfall in July - Miami, FL
  • Average rainfall in July: 62mm

The wettest month (with the highest rainfall) is August (71mm).
The driest month (with the least rainfall) is January (11mm).

Average rainfall days in July - Miami, FL
  • Average rainfall days in July: 21.4 days

The month with the highest number of rainy days is September (24.5 days).
The month with the least rainy days is February (8.7 days).

Average sea temperature in July - Miami, FL
  • Average sea temperature in July: 29.6°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 July / Average sunshine in July - Miami, FL
  • Average daylight in July: 13.6h

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

  • Average sunshine in July: 11.1h

The month with the most sunshine is July (Average sunshine: 11.1h).
The month with the least sunshine is December (Average sunshine: 6.4h).

Average UV index in July - Miami, FL
  • Average UV index in July: 7

Months with the highest UV index are May, June, July, August, September and October (UV index 7).
Months with the lowest UV index are January and December (UV index 5).