April weather forecast
Serdang, Indonesia

April, like March, is a hot autumn month in Serdang, Indonesia, with an average temperature varying between 25.9°C (78.6°F) and 30.9°C (87.6°F).

Temperature

With the start of April, Serdang measures an average high-temperature of a still hot 30.9°C (87.6°F), not significantly differing from March's 30.5°C (86.9°F). Serdang's April nights exhibit a subtle drop in temperature, averaging at a warm 25.9°C (78.6°F), closely aligned with the daytime highs.

Heat index

The heat index value during April is evaluated at a fiery hot 39°C (102.2°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', shows a temperature sensation when both heat and moisture conditions are combined. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. 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 are essentially critical for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

In April, the average relative humidity in Serdang is 74%.

Rainfall

In April, the rain falls for 24.8 days. Throughout April, 141mm (5.55") of precipitation is accumulated. In Serdang, during the entire year, the rain falls for 252 days and collects up to 1150mm (45.28") of precipitation.

Daylight

In Serdang, Indonesia, the average length of the day in April is 11h and 58min.
On the first day of the month, sunrise is at 05:54 and sunset at 17:57. On the last day of April, sunrise is at 05:52 and sunset at 17:46 WIB.

Sunshine

The average sunshine in April is 8.9h.

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 are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 7 in April converts into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.