April weather forecast
Demak, Indonesia

April, like March, is another tropical autumn month in Demak, Indonesia, with temperature in the range of an average low of 24.7°C (76.5°F) and an average high of 31°C (87.8°F).

Temperature

The initiation of April records an average high-temperature of a still hot 31°C (87.8°F), displaying a near consistency with the previous month. Throughout April nights, Demak experiences a consistent temperature average of 24.7°C (76.5°F).

Heat index

The average heat index in April is computed to be a blisteringly hot 41°C (105.8°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In April, the average relative humidity in Demak is 81%.

Rainfall

In Demak, in April, it is raining for 24.3 days, with typically 123mm (4.84") of accumulated precipitation. In Demak, during the entire year, the rain falls for 239.6 days and collects up to 1140mm (44.88") of precipitation.

Daylight

The average length of the day in April is 11h and 58min.
On the first day of the month, sunrise is at 05:40 and sunset at 17:42. On the last day of April, sunrise is at 05:38 and sunset at 17:30 WIB.

Sunshine

In April, the average sunshine in Demak, Indonesia, is 8.7h.

UV index

The months with the highest UV index in Demak are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Demak, Indonesia. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In April, a daily maximum UV index of 7 leads to the following instructions:
Shield from overexposure. Defense against sun-related harm is required. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.