June weather forecast
Juana Díaz, PR

June heralds the advent of summer in Puerto Rico, USA, with an overall increase in temperatures. The median sea temperature elevates to a pleasant 83.2°F (28.4°C), providing ideal conditions for those looking to indulge in water sports. This month, while slightly less rainy than May, still sees substantial precipitation. As the peak travel season arrives, the weather turns sultry with a persistent, warm breeze flowing across the island. Moving into July, humidity and high temperatures remain consistent.

Temperature

The commencement of June records an average high-temperature of a still warm 85.5°F (29.7°C), barely varying from May's 84.4°F (29.1°C). Juana Díaz records an average nighttime low-temperature of 75.7°F (24.3°C) throughout June.

Heat index

June's average heat index is estimated at a sweltering 96.8°F (36°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Note that heat index values are valued for light wind and location in the shade. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In June, the average relative humidity is 78%.

Rainfall

In Juana Díaz, in June, it is raining for 19.3 days, with typically 2.13" (54mm) of accumulated precipitation. In Juana Díaz, during the entire year, the rain falls for 249.1 days and collects up to 28.82" (732mm) of precipitation.

Ocean temperature

In June, the average ocean temperature is 83.1°F (28.4°C).
Note: Water activities in surface temperatures between 77°F (25°C) and 84.2°F (29°C) are seen as exceptional and extremely agreeable for lengthened time spans.

Daylight

June has the longest days of the year in Juana Díaz, Puerto Rico, with an average of 13h and 12min of daylight.
On the first day of the month, sunrise is at 5:49 am and sunset at 6:58 pm. On the last day of June, sunrise is at 5:53 am and sunset at 7:05 pm AST.

Sunshine

With an average of 10.9h of sunshine, June has the most sunshine of the year.

UV index

May through October, with an average maximum UV index of 7, are months with the highest UV index in Juana Díaz. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 7 in June translates into this advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.