April weather forecast
Siwalankerto, Indonesia

April, the same as March, in Siwalankerto, Indonesia, is a hot autumn month, with an average temperature fluctuating between 30.5°C (86.9°F) and 25.6°C (78.1°F).

Temperature

April notes an average high-temperature of a still hot 30.5°C (86.9°F), aligning with the previous month's conditions. The nighttime temperature in Siwalankerto in April experiences a minor dip, averaging a warm 25.6°C (78.1°F).

Heat index

April's average heat index is appraised at a fiery hot 38°C (100.4°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. 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. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Siwalankerto, the average relative humidity in April is 76%.

Rainfall

In Siwalankerto, Indonesia, in April, during 21.3 rainfall days, 87mm (3.43") of precipitation is typically accumulated. Throughout the year, in Siwalankerto, there are 187.8 rainfall days, and 839mm (33.03") of precipitation is accumulated.

Daylight

The average length of the day in April is 11h and 57min.
On the first day of the month, sunrise is at 05:31 and sunset at 17:33. On the last day of April, sunrise is at 05:30 and sunset at 17:21 WIB.

Sunshine

The average sunshine in April is 9.1h.

UV index

The months with the highest UV index in Siwalankerto, Indonesia, are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Siwalankerto are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index, 7 in April, converts into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.