April weather forecast
Chennai, India

April in Chennai showcases higher temperature trends with a peak of 32.9°C (91.2°F), ushering in the Indian summer season. As the sun climbs its apogee, daylight hours stretch further, illuminating the city beautifully from dawn to dusk. Albeit conditions are increasingly arid, cloud cover remains fairly constant, providing occasional relief from the brilliant sunshine. The distinct decline of rainfall syncs harmoniously with the accelerated rise in temperature, underscoring the advent of summer. Despite the soaring heat, Chennai's resilient populace indulges in vibrant festivities in this hot and sunny month.

Temperature

Chennai indicates an average high-temperature of a still tropical 32.9°C (91.2°F) in April, showing minor variation from March's 30.9°C (87.6°F). During April, the nighttime temperature in Chennai averages to a moderately hot 27.8°C (82°F).

Heat index

During April, the heat index is evaluated at a blistering 44°C (111.2°F). Be cautious: Heat exhaustion along with heat cramps are predicted. Heatstroke is a possible consequence of continuous physical effort.
Heat index specifics point out values are for conditions of shade and a slight breeze. 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 'apparent temperature' or 'real feel', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The average relative humidity in April is 72%.

Rainfall

In Chennai, during April, the rain falls for 4.3 days and regularly aggregates up to 10mm (0.39") of precipitation. Throughout the year, in Chennai, there are 157.6 rainfall days, and 823mm (32.4") of precipitation is accumulated.

Sea temperature

In Chennai, the average seawater temperature in April is 29.3°C (84.7°F).
Note: For any water activity, surface water temperatures from 25°C (77°F) to 29°C (84.2°F) are deemed perfect and extremely pleasing for enduring enjoyment.

Daylight

In April, the average length of the day in Chennai, India, is 12h and 26min.
On the first day of April in Chennai, sunrise is at 6:04 am and sunset at 6:20 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 6:23 pm IST.

Sunshine

The average sunshine in April is 11.3h.

UV index

April through July, with an average maximum UV index of 8, are months with the highest UV index in Chennai. A UV Index estimate of 8 to 10 represents a very high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In April, the UV index of 8 transforms into the following advice:
It is essential to prioritize protection. Unprotected skin and eyes can suffer rapid harm. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Heads up! UV intensity is amplified by reflections from water and sand.