April weather forecast
Perumanallur, India

April, like March, in Perumanallur, India, is another sweltering pre-monsoon summer month, with an average temperature fluctuating between 37.7°C (99.9°F) and 25.4°C (77.7°F).

Temperature

Perumanallur's April weather, marked by an average high temperature of 37.7°C (99.9°F) and an average low temperature of 25.4°C (77.7°F), is the warmest in the year.

Heat index

The average heat index in April is evaluated at a blazing hot 48°C (118.4°F). Be careful: Heat exhaustion and heat cramps are probable. Heatstroke may result from extended activity.
Note that heat index values are valued for light wind and location in the shade. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

March and April, with an average relative humidity of 50%, are the least humid months in Perumanallur.

Rainfall

In April, in Perumanallur, the rain falls for 15.4 days. Throughout April, 56mm (2.2") of precipitation is accumulated. Throughout the year, in Perumanallur, there are 176.8 rainfall days, and 769mm (30.28") of precipitation is accumulated.

Daylight

The average length of the day in April in Perumanallur is 12h and 23min.
On the first day of the month, sunrise is at 6:17 am and sunset at 6:31 pm. On the last day of April, sunrise is at 6:02 am and sunset at 6:33 pm IST.

Sunshine

In Perumanallur, the average sunshine in April is 9.5h.

UV index

March and April, with an average maximum UV index of 8, are months with the highest UV index. A UV Index of 8 to 10 symbolizes a very high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 8 during April translates into the following directions:
Without constant care, eyes and skin might suffer damage in a short time. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Enhance your sun protection with tightly woven, yet airy clothing.