June weather forecast
Key Biscayne, FL

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The beautiful and dramatic landscape of the Miami Crandon Park in Key Biscayne, Florida
The beautiful and dramatic landscape of the Miami Crandon Park in Key Biscayne, Florida

Weather in June

June, the first month of the summer in Key Biscayne, is still a warm month, with an average temperature fluctuating between 80.2°F (26.8°C) and 84.7°F (29.3°C).

Temperature

The initiation of June records an average high-temperature of a still moderately hot 84.7°F (29.3°C), displaying a near consistency with the previous month. Night temperatures in June in Key Biscayne exhibit a subtle decrease, settling at an average of 80.2°F (26.8°C).

Heat index

The average heat index in June is estimated at a hot 93.2°F (34°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.

Humidity

In June, the average relative humidity is 73%.

Rainfall

In Key Biscayne, in June, during 19 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. In Key Biscayne, during the entire year, the rain falls for 182.7 days and collects up to 16.38" (416mm) of precipitation.

Ocean temperature

In Key Biscayne, in June, the average water temperature is 83.3°F (28.5°C).
Note: Surface water temperatures between 77°F (25°C) and 84.2°F (29°C) offer outstanding conditions for any water activity, providing extreme pleasure for extended periods.

Daylight

The month with the longest days is June, with an average of 13h and 42min of daylight.
On the first day of the month, sunrise is at 6:29 am and sunset at 8:08 pm. On the last day of June, in Key Biscayne, sunrise is at 6:32 am and sunset at 8:16 pm EDT.

Sunshine

The average sunshine in June is 10.7h.

UV index

May through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: A daily maximum UV index of 7 in June translates into the following instructions:
Shield from overexposure. Defense against sun-related harm is required. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be careful! The Sun's UV radiation is accentuated by reflecting off sand and water.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in Key Biscayne in June?

In Key Biscayne, in June, the average high-temperature is 84.7°F (29.3°C), and the average low-temperature is 80.2°F (26.8°C). In June, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 93.2°F (34°C).

What is the average humidity in June in Key Biscayne?

The average relative humidity in June is 73%.

How many days does it rain in June in Key Biscayne?

In Key Biscayne, in June, during 19 rainfall days, 2.01" (51mm) of precipitation is typically accumulated.

What is the ocean temperature in June in Key Biscayne?

In June, the average ocean temperature in Key Biscayne, Florida, is 83.3°F (28.5°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.

When are the longest days in Key Biscayne?

June has the longest days of the year in Key Biscayne, Florida, with an average of 13h and 42min of daylight.

How many hours of daylight does Key Biscayne have in June?

In Key Biscayne, the average day length in June is 13h and 43min.

When are sunrise and sunset in June in Key Biscayne?

On the first day of June, sunrise is at 6:29 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 8:16 pm EDT.

How many hours of sunshine does Key Biscayne have in June?

In Key Biscayne, Florida, the average sunshine duration in June is 10.7h.

When is the highest UV index in Key Biscayne?

The months with the highest UV index in Key Biscayne are May through October, with an average maximum UV index of 7.

What is the UV index intensity in June in Key Biscayne?

The average daily maximum UV index in June is 7. A UV Index reading of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Key Biscayne, FL

Average temperature in June - Key Biscayne, FL
  • Average high temperature in June: 84.7°F

The warmest month (with the highest average high temperature) is August (87.1°F).
The month with the lowest average high temperature is January (73°F).

  • Average low temperature in June: 80.2°F

The month with the highest average low temperature is August (82.6°F).
The coldest month (with the lowest average low temperature) is January (65.1°F).

Average pressure in June
Key Biscayne, FL

Average pressure in June - Key Biscayne, FL
  • Average pressure in June: 30"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are September and October (29.95"Hg).

Average wind speed in June
Key Biscayne, FL

Average wind speed in June - Key Biscayne, FL
  • Average wind speed in June: 8.5mph

The windiest month (with the highest average wind speed) is March (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

Average humidity in June
Key Biscayne, FL

Average humidity in June - Key Biscayne, FL
  • Average humidity in June: 73%

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

Average rainfall in June
Key Biscayne, FL

Average rainfall in June - Key Biscayne, FL
  • Average rainfall in June: 2.01"

The wettest month (with the highest rainfall) is August (2.8").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in June
Key Biscayne, FL

Average rainfall days in June - Key Biscayne, FL
  • Average rainfall days in June: 19 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 June
Key Biscayne, FL

Average sea temperature in June - Key Biscayne, FL
  • Average sea temperature in June: 83.3°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 June /
Average sunshine in June
Key Biscayne, FL

Average daylight in June / Average sunshine in June - Key Biscayne, FL
  • Average daylight in June: 13h and 4min

The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).

  • Average sunshine in June: 10h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

Average sunshine days in June
Key Biscayne, FL

Average sunshine days in June - Key Biscayne, FL
  • Average sunshine days in June: 7.2 days

The month with the most sunshine days is March (17 days).
The month with the least sunshine days is September (3.2 days).

Average UV index in June
Key Biscayne, FL

Average UV index in June - Key Biscayne, FL
  • Average UV index in June: 7

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

Average cloud cover in June
Key Biscayne, FL

Average cloud cover in June - Key Biscayne, FL
  • Average cloud cover in June: 30

The month with the most cloud cover is October (Cloud cover 35).
The month with the least cloud cover is April (Cloud cover 26).

Average visibility in June
Key Biscayne, FL

Average visibility in June - Key Biscayne, FL
  • Average visibility in June: 6mi

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).

Key Biscayne, Florida, USA

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