June, the first month of the summer in
Oranjestad, is still a hot month, with an average temperature ranging between min 26.7°C (80.1°F) and max 32.2°C (90°F).
The ideal sea water temperature of 27.9°C (82.2°F) and only 2.8 rainfall days, with 19mm (0.75") of accumulated rainfall, makes June the best time for swimming and other water activities.
Temperature
In Oranjestad,
Aruba, the average high-temperature in June is relatively the same as in
May - a still hot 32.2°C (90°F). The average low-temperature, in Oranjestad, is 26.7°C (80.1°F).
Heat index
In June, the average heat index is computed to be a blistering 44°C (111.2°F).
Be wary: Heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'feels like', or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, pregnancy, differences in body mass, height, and shape), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
In Oranjestad, Aruba, the average relative humidity in June is 77.4%.
Rainfall
In Oranjestad, in June, during 2.8 rainfall days, 19mm (0.75") of precipitation is typically accumulated. Throughout the year, there are 64.6 rainfall days, and 472mm (18.58") of precipitation is accumulated.
Sea temperature
In Oranjestad, the average seawater temperature in June is 27.9°C (82.2°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.
Daylight
June has the longest days of the year, with an average of 12h and 51min of daylight.
On the first day of June, sunrise is at 06:13 and sunset at 19:02. On the last day of the month, sunrise is at 06:18 and sunset at 19:09 AST.
Sunshine
In June, the average sunshine is 5h.
UV index
The months with the highest UV index are
February through
September, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an extreme threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The daily maximum UV index of 12 in June interpret into the following advice:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.