June weather forecastMayport, FL
June
Weather in June
June, the first month of the summer in Mayport, is a tropical month, with an average temperature fluctuating between 75.2°F (24°C) and 87.6°F (30.9°C).Temperature
Mayport's average high-temperature in June is a tropical 87.6°F (30.9°C), marking an insignificant difference from the 82.9°F (28.3°C) of May. Mayport experiences an average nighttime temperature of 75.2°F (24°C) in the month of June.Heat index
The heat index in June is computed to be a very hot 102.2°F (39°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.It is crucial to understand that heat index figures are for shade and gentle wind conditions. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.
Humidity
In Mayport, the average relative humidity in June is 74%.Rainfall
In Mayport, during June, the rain falls for 20.7 days and regularly aggregates up to 3.66" (93mm) of precipitation. In Mayport, during the entire year, the rain falls for 185.3 days and collects up to 32.64" (829mm) of precipitation.Snowfall
March through August, October and November are months without snowfall in Mayport.Daylight
June has the longest days of the year in Mayport, with an average of 14h and 6min of daylight.On the first day of the month, sunrise is at 6:23 am and sunset at 8:23 pm. On the last day of June, in Mayport, sunrise is at 6:27 am and sunset at 8:31 pm EDT.
Sunshine
The average sunshine in June is 10.8h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In June, the maximum UV index of 7 translates into these guidelines:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the 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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Mayport, FL
- Average high temperature in June: 87.6°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (62.6°F).
- Average low temperature in June: 75.2°F
The month with the highest average low temperature is August (78.3°F).
The coldest month (with the lowest average low temperature) is January (50.2°F).
Average pressure in June
Mayport, FL
- Average pressure in June: 29.99"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are August and September (29.98"Hg).
Average wind speed in June
Mayport, FL
- Average wind speed in June: 7mph
The windiest months (with the highest average wind speed) are January, March, April, October and November (8.5mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in June
Mayport, FL
- Average humidity in June: 74%
The months with the highest relative humidity are August and December (76%).
The month with the lowest relative humidity is March (71%).
Average rainfall in June
Mayport, FL
- Average rainfall in June: 3.66"
The wettest month (with the highest rainfall) is August (5.12").
The driest month (with the least rainfall) is January (1.3").
Average rainfall days in June
Mayport, FL
- Average rainfall days in June: 20.7 days
The month with the highest number of rainy days is August (24.7 days).
The month with the least rainy days is February (9.8 days).
Average snowfall days in June
Mayport, FL
- Average snowfall days in June: 0 days
The months with the highest number of snowfall days are January, February, September and December (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, October and November (0 days).
Average daylight in June /
Average sunshine in June
Mayport, FL
- Average daylight in June: 14h and 6min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in June: 10h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 48min).
Average sunshine days in June
Mayport, FL
- Average sunshine days in June: 6.7 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is August (4.1 days).
Average UV index in June
Mayport, 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 months with the lowest UV index are January and December (UV index 4).
Average cloud cover in June
Mayport, 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 26).
Average visibility in June
Mayport, 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).
