April weather forecast
Willemstad, Curaçao

April in Willemstad ushers in a more drying yet warming trend as the city transitions from the first quarter. The reduction in rainfall persists with an insignificantly low increase, offering the public more opportunities to engage in outdoor parties, sports, and festivals. A notable slight temperature rise to 31.1°C (88°F) starts from April, however, the overall climatic conditions remain enjoyable. Additionally, the daylight hours and sunshine hours continue to extend, enriching each day with brightness. With perfect harmony between favourable weather and abundant daylight, April in Willemstad promises engaging experiences.

Temperature

The average high-temperature during April is a still tropical 31.1°C (88°F), almost matching the conditions of the preceding month. During April, Willemstad witnesses a consistent average low-temperature of 25.5°C (77.9°F).

Heat index

Throughout April, the heat index is evaluated at a scorching 40°C (104°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In April, the average relative humidity is 77.2%.

Rainfall

In Willemstad, in April, during 2.8 rainfall days, 20mm (0.79") of precipitation is typically accumulated. In Willemstad, Curaçao, during the entire year, the rain falls for 69.4 days and collects up to 553mm (21.77") of precipitation.

Sea temperature

In April, the average sea temperature in Willemstad, Curaçao, is 27°C (80.6°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are regarded as very warm, ensuring all water activities are pleasurable for extended periods without feeling uneasy.

Daylight

The average length of the day in April in Willemstad, Curaçao, is 12h and 25min.
On the first day of April in Willemstad, sunrise is at 06:31 and sunset at 18:46. On the last day of the month, sunrise is at 06:15 and sunset at 18:49 AST.

Sunshine

In April, the average sunshine in Willemstad is 8.2h.

UV index

The months with the highest UV index are February through September, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an extreme threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 12 during April leads to these advisories:
Execute all vital precautions. Preventing sun damage is of utmost importance. 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. Stay sun-safe with clothing that is both closely woven and worn loosely. Use liberally and reapply a broad-spectrum SPF 30+ sunscreen every two hours, or straight away after any outdoor workout or swim. Take caution! The UV rays from the Sun gain strength from sand and water reflections.