June weather forecast
Guayanilla, PR

June's welcome in Guayanilla comes swathed in a distinctive warmth; it's a month where the city truly flaunts its tropical persona. The mercury tends to push a little further, while the humidity takes a step back, creating an agreeable harmony. Showing a hint of an island summer, June flaunts an increased high temperature, reaching up to 85.8°F (29.9°C). Outdoor enthusiasts find it an opportune time to explore the city's myriad offerings, from beachside to mountainsides. Guayanilla's weather in June not only permits but actively encourages the pursuit of outdoor leisure activities.

Temperature

The arrival of June in Guayanilla, Puerto Rico, brings an average high-temperature of a still warm 85.8°F (29.9°C), subtly diverging from May's 84.7°F (29.3°C). Throughout the month of June, Guayanilla witnesses an average low-temperature of 76.5°F (24.7°C).

Heat index

The heat index value during June is computed to be a very hot 98.6°F (37°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
Note that heat index values are valued for light wind and location in the shade. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

The average relative humidity in June in Guayanilla, Puerto Rico, is 77%.

Rainfall

In June, in Guayanilla, the rain falls for 15.1 days. Throughout June, 1.5" (38mm) of precipitation is accumulated. Throughout the year, there are 224.9 rainfall days, and 23.58" (599mm) of precipitation is accumulated.

Snowfall

January through August, October through December are months without snowfall.

Daylight

June has the longest days of the year in Guayanilla, Puerto Rico, with an average of 13h and 12min of daylight.
On the first day of June, sunrise is at 5:50 am and sunset at 6:59 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 7:06 pm AST.

Sunshine

With an average of 11.3h of sunshine, June has the most sunshine of the year in Guayanilla.

UV index

April through October, with an average maximum UV index of 7, are months with the highest UV index in Guayanilla. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.
Note: During June, 7 as the daily maximum UV index converts into the following advice:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.