March weather forecast and climate
Oranjestad, Aruba

March, the first month of the spring, in Oranjestad, is still a tropical month, with average temperature fluctuating between 30.9°C (87.6°F) and 25°C (77°F).
The ideal sea water temperature of 26.4°C (79.5°F) and only 1.8 rainfall days, with 8.7mm (0.34") of accumulated rainfall, makes March the best time for swimming and other water activities.

Temperature

In March, the average high-temperature in Oranjestad, Aruba, is relatively the same as in February - a still tropical 30.9°C (87.6°F). In March, in Oranjestad, the average low-temperature is 25°C (77°F).

Heat index

In March, the average heat index is calculated to a torrid 39.1°C (102.4°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'felt air temperature', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like clothing, differences in body mass, height, and shape, metabolic differences, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The least humid month is March, with an average relative humidity of 75.7%.

Rainfall

March is the month with the least rainfall in Oranjestad, Aruba. Rain falls for 1.8 days and accumulates 8.7mm (0.34") of precipitation.

Sea temperature

In March, the average sea temperature in Oranjestad is 26.4°C (79.5°F).
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In March, the average length of the day is 12.1h.

Sunshine

In March, the average sunshine is 4h.

UV index

Months with the highest UV index in Oranjestad, Aruba, 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 the UV radiation for ordinary individuals.
Note: The daily maximum UV index of 12 in March interpret into the following advice:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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.