June weather forecast
Cayo Costa, FL

June, the first month of the summer in Cayo Costa, is a hot month, with an average temperature ranging between min 79°F (26.1°C) and max 86.2°F (30.1°C).

Temperature

Cayo Costa observes a minor difference in average high-temperatures between May's 83.1°F (28.4°C) and June's 86.2°F (30.1°C). Cayo Costa maintains a consistent average nighttime low-temperature of 79°F (26.1°C) throughout June.

Heat index

The heat index value for June is evaluated at a sweltering 98.6°F (37°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In June, the average relative humidity is 75%.

Rainfall

In Cayo Costa, in June, during 13.6 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In Cayo Costa, during the entire year, the rain falls for 122 days and collects up to 8.98" (228mm) of precipitation.

Daylight

With an average of 13h and 48min of daylight, June has the longest days of the year in Cayo Costa.
On the first day of June, sunrise is at 6:35 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 8:26 pm EDT.

Sunshine

The average sunshine in June is 10.8h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Cayo Costa. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 7 during June morphs into the following directions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.