April weather forecast
Sitiawan, Malaysia

April, like March, is a hot spring month in Sitiawan, Malaysia, with temperature in the range of an average low of 26.3°C (79.3°F) and an average high of 30.7°C (87.3°F).

Temperature

With April's commencement, the average high-temperature hits a still hot 30.7°C (87.3°F), replicating the temperature from the month gone by. Sitiawan's nocturnal April readings average at a moderately hot 26.3°C (79.3°F), showing little variation from the daytime temperatures.

Heat index

The heat index in April is evaluated at a fiery hot 39°C (102.2°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', gives an indication of how one might feel in terms of heat after considering humidity. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In April, the average relative humidity is 76%.

Rainfall

In Sitiawan, during April, the rain falls for 26.5 days and regularly aggregates up to 89mm (3.5") of precipitation. Throughout the year, there are 299.1 rainfall days, and 976mm (38.43") of precipitation is accumulated.

Daylight

In April, the average length of the day in Sitiawan is 12h and 13min.
On the first day of the month, sunrise is at 7:16 am and sunset at 7:25 pm. On the last day of April, in Sitiawan, Malaysia, sunrise is at 7:06 am and sunset at 7:22 pm +08.

Sunshine

In April, the average sunshine in Sitiawan is 8.9h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Sitiawan. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 7 in April translates into this advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.