April weather forecast
Oranjestad, Aruba

In April, Oranjestad, Aruba, begins to welcome the early signs of summer. On the ground, temperatures are warmer as compared to March, however, a mild swing in temperatures occurs from daytime to nightfall. Rainfall frequency remains low, with approximately 1.9 days of rain, delivering around 12mm (0.47") of precipitation. Corresponding with the weather, the daylight duration slightly extends, accommodating more hours under the sun. This warmer season reinforces a great time for outdoor aficionados to participate in numerous activities under the inviting climate.

Temperature

The arrival of April in Oranjestad is marked by an average high-temperature of a still hot 31.5°C (88.7°F), bearing a close resemblance to March. Throughout April, the temperature in Oranjestad tends to fall to a consistent average low of 25.8°C (78.4°F).

Heat index

April's average heat index is estimated at a blistering 41°C (105.8°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', provides an understanding of perceived warmth by combining temperature and relative humidity. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In April, the average relative humidity in Oranjestad is 77.1%.

Rainfall

In Oranjestad, in April, it is raining for 1.9 days, with typically 12mm (0.47") of accumulated precipitation. Throughout the year, there are 64.6 rainfall days, and 472mm (18.58") of precipitation is accumulated.

Sea temperature

In April, the average sea temperature in Oranjestad is 26.8°C (80.2°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are regarded as highly pleasant, making all water activities enjoyable without any discomfort over long durations.

Daylight

The average length of the day in April in Oranjestad is 12h and 25min.
On the first day of April, sunrise is at 06:35 and sunset at 18:51. On the last day of the month, sunrise is at 06:19 and sunset at 18:54 AST.

Sunshine

April has the least sunshine of the year, with an average of 3h of sunshine.

UV index

The months with the highest UV index are February through September, with an average maximum UV index of 12. A UV Index estimate of 11, and higher, represents an excessive health risk from exposure to the Sun's UV rays for the average person.
Note: An average UV index of 12 in April transforms into this advice:
Put into effect every precaution of importance, unprotected skin and eyes may get burns swiftly. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. After a swim or an outdoor workout, generously apply and reapply a broad-spectrum SPF 30+ sunscreen. Watch out! Sand and water enhance the UV exposure you receive.