June weather forecast
Siesta Key, FL

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Weather in June

The first month of the summer, June, is a hot month in Siesta Key, Florida, with an average temperature fluctuating between 87.3°F (30.7°C) and 77.5°F (25.3°C).

Temperature

The onset of June marks an average high-temperature of a hot 87.3°F (30.7°C), hardly differing from May's 84.2°F (29°C). Siesta Key reports an average low-temperature of 77.5°F (25.3°C) during the nights of June.

Heat index

The heat index value during June is evaluated at a torrid 100.4°F (38°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Note that heat index values are valued for light wind and location in the shade. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gives an indication of how one might feel in terms of heat after considering humidity. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The average relative humidity in June is 75%.

Rainfall

In June, the rain falls for 22.2 days. Throughout June, 5.55" (141mm) of precipitation is accumulated. Throughout the year, there are 183.1 rainfall days, and 34.92" (887mm) of precipitation is accumulated.

Ocean temperature

In June, the average ocean temperature is 82.4°F (28°C).
Note: Surface water temperatures ranging from 77°F (25°C) to 84.2°F (29°C) are seen as ideal and highly pleasant for extended enjoyment in all water activities.

Daylight

With an average of 13h and 48min of daylight, June has the longest days of the year.
On the first day of the month, sunrise is at 6:35 am and sunset at 8:20 pm. On the last day of June, sunrise is at 6:38 am and sunset at 8:29 pm EDT.

Sunshine

In June, the average sunshine is 10.8h.

UV index

May through September, 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 ordinary person.
Note: In June, a daily UV index of 7 turns into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. 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. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Attention! The combination of sand and water reflections enhances UV ray intensity.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in June?

In June, in Siesta Key, the average high-temperature is 87.3°F (30.7°C), and the average low-temperature is 77.5°F (25.3°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in June is evaluated at 100.4°F (38°C).

What is the average humidity in June?

In June, the average relative humidity is 75%.

How much does it rain in June?

In Siesta Key, in June, it is raining for 22.2 days, with typically 5.55" (141mm) of accumulated precipitation.

What is the ocean temperature in June in Siesta Key?

In Siesta Key, in June, the average water temperature is 82.4°F (28°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?

The month with the longest days is June, with an average of 13h and 48min of daylight.

What is the average length of the day in June?

The average day length in June is 13h and 50min.

When are sunrise and sunset in June?

In June, on the first day of the month, sunrise is at 6:35 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 8:29 pm EDT.

How long on average sun shines in June?

The average sunshine duration in June is 10.8h.

What is the month with the highest UV index?

The months with the highest UV index are May through September, with an average maximum UV index of 7.

What is the UV index reading in June?

In June, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high hazard to health 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
Siesta Key, FL

Average temperature in June - Siesta Key, FL
  • Average high temperature in June: 87.3°F

The warmest month (with the highest average high temperature) is August (88.5°F).
The month with the lowest average high temperature is January (68.5°F).

  • Average low temperature in June: 77.5°F

The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is January (56.1°F).

Average pressure in June
Siesta Key, FL

Average pressure in June - Siesta Key, FL
  • Average pressure in June: 29.99"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).

Average wind speed in June
Siesta Key, FL

Average wind speed in June - Siesta Key, FL
  • Average wind speed in June: 6.8mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).

Average humidity in June
Siesta Key, FL

Average humidity in June - Siesta Key, FL
  • Average humidity in June: 75%

The month with the highest relative humidity is December (76%).
The months with the lowest relative humidity are March, April and May (72%).

Average rainfall in June
Siesta Key, FL

Average rainfall in June - Siesta Key, FL
  • Average rainfall in June: 5.55"

The wettest month (with the highest rainfall) is August (6.42").
The driest months (with the least rainfall) are February and November (1.06").

Average rainfall days in June
Siesta Key, FL

Average rainfall days in June - Siesta Key, FL
  • Average rainfall days in June: 22.2 days

The month with the highest number of rainy days is August (26.8 days).
The months with the least rainy days are January, February and November (8.3 days).

Average sea temperature in June
Siesta Key, FL

Average sea temperature in June - Siesta Key, FL
  • Average sea temperature in June: 82.5°F

The best month for swimming (with the highest average sea temperature) is August (86.7°F).
The coldest month (with the lowest average sea temperature) is January (64.1°F).

Average daylight in June /
Average sunshine in June
Siesta Key, FL

Average daylight in June / Average sunshine in June - Siesta Key, FL
  • Average daylight in June: 13h and 5min

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in June: 10h and 5min

The month with the most sunshine is May (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

Average sunshine days in June
Siesta Key, FL

Average sunshine days in June - Siesta Key, FL
  • Average sunshine days in June: 5.8 days

The month with the most sunshine days is January (21.1 days).
The month with the least sunshine days is August (2.5 days).

Average UV index in June
Siesta Key, FL

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

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

Average cloud cover in June
Siesta Key, FL

Average cloud cover in June - Siesta Key, FL
  • Average cloud cover in June: 27

The months with the most cloud cover are January and December (Cloud cover 30).
The month with the least cloud cover is May (Cloud cover 22).

Average visibility in June
Siesta Key, FL

Average visibility in June - Siesta Key, 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).

Siesta Key, Florida, USA

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