Key West
Florida, USA
Long-term weather forecast
Long-term weather forecast

June weather forecast and climate
Key West, FL

A beach pier in Key West, Florida, with palm trees in the background
A beach pier in Key West, Florida, with palm trees in the background
June is the beginning of the summer in Key West and lies in the wet season with an average of 4.1" (104.1mm) of rainfall. It has the longest days at 14 hours that are convenient for sunset tours, shopping in the evening, or walking on the beach.
June is a slow season for tourism with the mercury touching an average high temperature of 88°F (31.1°C). Smathers beach is a wonderful place in the warm June weather with plenty of food trucks, and umbrella and chair rentals.

What is the temperature in Junio in Key West?

In Junio, the average high-temperature is 87.8°F (31°C), and the average low-temperature is 78.8°F (26°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), that combines air temperature and relative humidity, in Junio is evaluated at 101.8°F (38.8°C).

What is the average humidity in Junio in Key West?

In Key West, the average relative humidity in Junio is 74%.

How much does it rain in Key West in Junio?

In Key West, Florida, in Junio, during 11 rainfall days, 5.67" (144mm) of precipitation is typically accumulated.

What is the water temperature in Junio in Key West?

In Key West, Florida, in Junio, the average water temperature is 83.3°F (28.5°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.

When are the longest days in Key West?

With an average of 13.6h of daylight, Junio has the longest days of the year in Key West, Florida.

How many hours of daylight does Key West have in Junio?

The average length of the day in Junio in Key West is 13.6h.

How many hours of sunshine does Key West have in Junio?

In Junio, the average sunshine in Key West, Florida, is 10.5h.

When is the highest UV index in Key West?

Months with the highest UV index in Key West are Abril through Agosto, with an average maximum UV index of 11.

What is the UV index reading in Junio in Key West?

The average daily maximum UV index in Junio in Key West, Florida, is 11. A UV Index estimate of 11, and higher, represents an extreme health threat from unsafe exposure to the Sun's UV rays.
Average temperature in June - Key West, FL
  • Average high temperature in June: 87.8°F

The warmest month (with the highest average high temperature) is August (89.4°F).
The month with the lowest average high temperature is January (74.3°F).

  • Average low temperature in June: 78.8°F

The month with the highest average low temperature is July (79.8°F).
The coldest month (with the lowest average low temperature) is January (64.2°F).

Average humidity in June - Key West, FL
  • Average humidity in June: 74%

The month with the highest relative humidity is December (76.2%).
The month with the lowest relative humidity is April (70.1%).

Average rainfall in June - Key West, FL
  • Average rainfall in June: 5.7"

The wettest month (with the highest rainfall) is September (6.5").
The driest month (with the lowest rainfall) is March (1.6").

Average rainfall days in June - Key West, FL
  • Average rainfall days in June: 11 days

The month with the highest number of rainy days is September (16.2 days).
The month with the lowest number of rainy days is April (4.5 days).

Average sea temperature in June - Key West, FL
  • Average sea temperature in June: 83.3°F

The best month for swimming (with the highest average sea temperature) is August (86.9°F).
Coldest months (with the lowest average sea temperature) are January and February (71.2°F).

Average daylight in June / Average sunshine in June - Key West, FL
  • Average daylight in June: 13.6h

The month with the longest days is June (Average daylight: 13.6h).
The month with shortest days is December (Average daylight: 10.6h).

  • Average sunshine in June: 10.5h

The month with most sunshine is May (Average sunshine: 11h).
The month with least sunshine is December (Average sunshine: 7.6h).

Average UV index in June - Key West, FL
  • Average UV index in June: 11

Months with the highest UV index are April, May, June, July and August (UV index 11).
Months with the lowest UV index are January and December (UV index 6).