June weather forecastKey West, FL
June
Weather in June
June is a distinct month for Key West, as the average temperatures now consistently reach past the 80-degree mark, signifying the start of summer. The perpetual humidity, combined with the recurrent rainfall, brings a unique charm to the city. With longer daylight hours, beach and water-sport activities reach their peak. Nonetheless, June features the highest recorded temperatures, topping at 83.3°F (28.5°C), contributing to the tropical allure for those seeking warmth.Temperature
June in Key West brings an average high-temperature of a still warm 83.3°F (28.5°C), nearly identical to the preceding month. Nighttime temperatures during June report a consistent average of 81.5°F (27.5°C).Heat index
In June, the heat index is computed to be a hot 91.4°F (33°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.Heat index data is primarily for areas with shade and subjected to light winds. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an estimation of the warmth sensation when considering humidity levels. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
In June, the average relative humidity is 77%.Rainfall
In Key West, during June, the rain falls for 19.5 days and regularly aggregates up to 3.46" (88mm) of precipitation. In Key West, Florida, during the entire year, the rain falls for 199.2 days and collects up to 31.61" (803mm) of precipitation.Ocean temperature
In June, the average ocean temperature is 83.3°F (28.5°C).Note: For activities such as swimming and diving, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as particularly pleasant and satisfying for prolonged periods without feeling uneasy.
Daylight
With an average of 13h and 36min of daylight, June has the longest days of the year in Key West.On the first day of the month, sunrise is at 6:38 am and sunset at 8:12 pm. On the last day of June, in Key West, sunrise is at 6:41 am and sunset at 8:20 pm EDT.
Sunshine
The average sunshine in June is 10.6h.UV index
April through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 7 in June leads to these recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Boost your sun resistance with garments that are densely woven yet spacious. Warning! Sand and water reflections boost the intensity of UV exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Key West, FL
- Average high temperature in June: 83.3°F
The warmest month (with the highest average high temperature) is August (85.3°F).
The month with the lowest average high temperature is January (72.7°F).
- Average low temperature in June: 81.5°F
The month with the highest average low temperature is August (82.9°F).
The coldest month (with the lowest average low temperature) is January (68.5°F).
Average pressure in June
Key West, FL
- Average pressure in June: 29.98"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are September and October (29.93"Hg).
Average wind speed in June
Key West, FL
- Average wind speed in June: 10.3mph
The windiest months (with the highest average wind speed) are January and November (14.4mph).
The calmest month (with the lowest average wind speed) is July (9.5mph).
Average humidity in June
Key West, FL
- Average humidity in June: 77%
The month with the highest relative humidity is February (78%).
The months with the lowest relative humidity are July, August and September (74%).
Average rainfall in June
Key West, FL
- Average rainfall in June: 3.46"
The wettest month (with the highest rainfall) is September (5.12").
The driest month (with the least rainfall) is March (0.67").
Average rainfall days in June
Key West, FL
- Average rainfall days in June: 19.5 days
The months with the highest number of rainy days are August and September (23.1 days).
The month with the least rainy days is February (11 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).
The 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: 13h and 36min
The month with the longest days is June (Average daylight: 13h and 36min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in June: 10h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in June
Key West, FL
- Average sunshine days in June: 7.6 days
The month with the most sunshine days is March (17 days).
The month with the least sunshine days is September (4.5 days).
Average UV index in June
Key West, FL
- Average UV index in June: 7
The months with the highest UV index are April, May, June, July, August, September and October (UV index 7).
The month with the lowest UV index is January (UV index 5).
Average cloud cover in June
Key West, FL
- Average cloud cover in June: 30
The month with the most cloud cover is January (Cloud cover 34).
The month with the least cloud cover is April (Cloud cover 23).
Average visibility in June
Key West, 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).
