June weather forecast
Jacksonville, FL

Water geysers at the fountain of Jacksonville in Florida, USA, with the cityscape
Water geysers at the fountain of Jacksonville in Florida, USA, with the cityscape

Weather in June

The first month of the summer, June, is a hot month in Jacksonville, Florida, with an average temperature varying between 73.9°F (23.3°C) and 90.1°F (32.3°C).

Temperature

In Jacksonville, the average high-temperature in June is essentially the same as in May - a tropical 90.1°F (32.3°C). In Jacksonville, in June, the average low-temperature is 73.9°F (23.3°C).

Heat index

In June, the average heat index is calculated to be a scorching 107.6°F (42°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With 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 'feels like', 'real feel', 'apparent temperature', or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, metabolic differences, wind), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index 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. Excessive warmth is eliminated from the body by evaporation of sweat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Jacksonville, the average relative humidity in June is 73%.

Rainfall

In June, in Jacksonville, the rain falls for 18.5 days. Throughout June, 2.8" (71mm) of precipitation is accumulated. Throughout the year, in Jacksonville, Florida, there are 172.6 rainfall days, and 25.35" (644mm) of precipitation is accumulated.

Snowfall

January through November are months without snowfall in Jacksonville, Florida.

Ocean temperature

In Jacksonville, the average seawater temperature in June is 79.9°F (26.6°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

June has the longest days of the year, with an average of 14h and 4min of daylight.
On the first day of the month, sunrise is at 6:25 am and sunset at 8:23 pm. On the last day of June, sunrise is at 6:27 am and sunset at 8:32 pm EDT.

Sunshine

In Jacksonville, the average sunshine in June is 10.8h.

UV index

The months with the highest UV index in Jacksonville, Florida, are May through August, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In June, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the temperature in June in Jacksonville?

In June, in Jacksonville, the average high-temperature is 90.1°F (32.3°C), and the average low-temperature is 73.9°F (23.3°C). in June, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, is calculated to be 107.6°F (42°C).

What is the average humidity in June in Jacksonville?

In Jacksonville, the average relative humidity in June is 73%.

How much does it rain in Jacksonville in June?

In June, in Jacksonville, Florida, the rain falls for 18.5 days. Throughout June, 2.8" (71mm) of precipitation is accumulated.

When it does not snow in Jacksonville?

January through November are months without snowfall in Jacksonville.

How warm is the water in June in Jacksonville?

In Jacksonville, Florida, in June, the average water temperature is 79.9°F (26.6°C). 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.

When are the longest days in Jacksonville?

June has the longest days of the year, with an average of 14h and 4min of daylight.

What is the average length of the day in June in Jacksonville?

In June, the average day length in Jacksonville, Florida, is 14h and 4min.

When are sunrise and sunset in June in Jacksonville?

On the first day of June in Jacksonville, Florida, sunrise is at 6:25 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 8:32 pm EDT.

How long on average sun shines in June in Jacksonville?

In Jacksonville, Florida, the average sunshine duration in June is 10.8h.

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

May through August, with an average maximum UV index of 7, are months with the highest UV index in Jacksonville.

What is the UV index intensity in June in Jacksonville?

In June, the average daily maximum UV index in Jacksonville, Florida, is 7. A UV Index reading of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Jacksonville, FL

Average temperature in June - Jacksonville, FL
  • Average high temperature in June: 90.1°F

The warmest months (with the highest average high temperature) are July and August (91.4°F).
The month with the lowest average high temperature is January (63.1°F).

  • Average low temperature in June: 73.9°F

The month with the highest average low temperature is August (76.6°F).
The coldest month (with the lowest average low temperature) is January (47.8°F).

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Average pressure in June
Jacksonville, FL

Average pressure in June - Jacksonville, FL
  • Average pressure in June: 29.98"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).

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Average wind speed in June
Jacksonville, FL

Average wind speed in June - Jacksonville, FL
  • Average wind speed in June: 5.5mph

The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

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Average humidity in June
Jacksonville, FL

Average humidity in June - Jacksonville, FL
  • Average humidity in June: 73%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is March (69%).

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Average rainfall in June
Jacksonville, FL

Average rainfall in June - Jacksonville, FL
  • Average rainfall in June: 2.8"

The wettest month (with the highest rainfall) is August (3.66").
The driest month (with the least rainfall) is January (1.1").

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Average rainfall days in June
Jacksonville, FL

Average rainfall days in June - Jacksonville, FL
  • Average rainfall days in June: 18.5 days

The month with the highest number of rainy days is August (23.3 days).
The month with the least rainy days is November (9 days).

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Average snowfall days in June
Jacksonville, FL

Average snowfall days in June - Jacksonville, FL
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

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Average sea temperature in June
Jacksonville, FL

Average sea temperature in June - Jacksonville, FL
  • Average sea temperature in June: 79.9°F

The best month for swimming (with the highest average sea temperature) is August (83.5°F).
The coldest month (with the lowest average sea temperature) is February (60.4°F).

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Average daylight in June /
Average sunshine in June
Jacksonville, FL

Average daylight in June / Average sunshine in June - Jacksonville, FL
  • Average daylight in June: 14h and 4min

The month with the longest days is June (Average daylight: 14h and 4min).
The month with the shortest days is December (Average daylight: 10h and 14min).

  • Average sunshine in June: 10h and 48min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

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Average sunshine days in June
Jacksonville, FL

Average sunshine days in June - Jacksonville, FL
  • Average sunshine days in June: 9 days

The month with the most sunshine days is January (18.8 days).
The month with the least sunshine days is August (6.3 days).

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Average UV index in June
Jacksonville, FL

Average UV index in June - Jacksonville, FL
  • Average UV index in June: 7

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 4).

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Average cloud cover in June
Jacksonville, FL

Average cloud cover in June - Jacksonville, FL
  • Average cloud cover in June: 29

The month with the most cloud cover is December (Cloud cover 39).
The month with the least cloud cover is May (Cloud cover 27).

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Average visibility in June
Jacksonville, FL

Average visibility in June - Jacksonville, 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).

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