April weather forecast
Kupang, Indonesia

April arrives in Kupang with a noticeable change in weather. The rainfall frequency lessons and the humidity keeps declining, veering the weather decidedly towards the dry season. However, despite the reduction in rainfall, the temperatures maintain their steady warmth. April is marked by considerably lower days of rain, down from March's 23.4 days to 16.8 days. Therefore, April stands as a transition month with a mixture of occasional showers and an upswing in sunny days, indicative of the impending dry spell.

Temperature

The advent of April signifies a minor shift to an average high-temperature of a still moderately hot 29.8°C (85.6°F), aligning closely with March. In April, Kupang's nights cool slightly to a consistent average temperature of 26.4°C (79.5°F).

Heat index

April's mean heat index is computed to be a very hot 36°C (96.8°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

In Kupang, the average relative humidity in April is 75%.

Rainfall

In Kupang, in April, it is raining for 16.8 days, with typically 68mm (2.68") of accumulated precipitation. In Kupang, during the entire year, the rain falls for 153.3 days and collects up to 741mm (29.17") of precipitation.

Sea temperature

In Kupang, in April, the average water temperature is 29.3°C (84.7°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) provides warmth and pleasure, making water activities enjoyable for lengthened periods without feeling uncomfortable.

Daylight

The average length of the day in April in Kupang is 11h and 53min.
On the first day of April in Kupang, sunrise is at 05:49 and sunset at 17:49. On the last day of the month, sunrise is at 05:50 and sunset at 17:35 WITA.

Sunshine

In Kupang, the average sunshine in April is 9.2h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index in Kupang are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In April, a daily maximum UV index of 7 leads to the following instructions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Heads up! UV intensity is amplified by reflections from water and sand.