April weather forecastPonnai, India

Weather in April

April, the same as March, is a very hot pre-monsoon summer month in Ponnai, India, with temperature in the range of an average high of 37.9°C (100.2°F) and an average low of 24.3°C (75.7°F).

Temperature

Ponnai starts April with an average high-temperature of a still torrid 37.9°C (100.2°F), a minor shift from March's 35.2°C (95.4°F). In April, a remarkable difference from daytime highs is noted, as Ponnai records an average temperature of 24.3°C (75.7°F) during the night.

Heat index

The heat index value for April is evaluated at a life-threatening hot 49°C (120.2°F). Heed: Expect heat cramps and heat exhaustion. Continued action may cause heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

The average relative humidity in April in Ponnai is 52%.

Rainfall

In April, in Ponnai, India, the rain falls for 6.7 days. Throughout April, 18mm (0.71") of precipitation is accumulated. Throughout the year, in Ponnai, there are 163.6 rainfall days, and 632mm (24.88") of precipitation is accumulated.

Daylight

The average length of the day in April in Ponnai is 12h and 26min.
On the first day of April in Ponnai, sunrise is at 6:08 am and sunset at 6:24 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 6:28 pm IST.

Sunshine

In Ponnai, India, the average sunshine in April is 10.7h.

UV index

The months with the highest UV index are April through June, with an average maximum UV index of 8. A UV Index reading of 8 to 10 represents a very high health vulnerability 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:
Act with caution. Neglecting protection can lead to skin and eye damage in moments. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.