April weather forecast
Cilegon, Indonesia

April, the same as March, in Cilegon, Indonesia, is another tropical autumn month, with an average temperature ranging between max 30.8°C (87.4°F) and min 24.3°C (75.7°F).

Temperature

With April's arrival, Cilegon notes an average high-temperature of a still tropical 30.8°C (87.4°F), closely following the trend of the preceding month. The average temperature in Cilegon drops to a moderately hot 24.3°C (75.7°F) during the night in the month of April.

Heat index

The heat index value during April is evaluated at a scorching 40°C (104°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

The average relative humidity in April in Cilegon is 79%.

Rainfall

In April, in Cilegon, the rain falls for 28.1 days. Throughout April, 171mm (6.73") of precipitation is accumulated. Throughout the year, there are 292.5 rainfall days, and 1468mm (57.8") of precipitation is accumulated.

Daylight

In April, the average length of the day is 11h and 59min.
On the first day of the month, sunrise is at 05:58 and sunset at 18:01. On the last day of April, in Cilegon, sunrise is at 05:56 and sunset at 17:50 WIB.

Sunshine

In April, the average sunshine in Cilegon, Indonesia, is 8.6h.

UV index

The months with the highest UV index are February through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: During April, 7 as the daily maximum UV index converts into the following advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.