April weather forecast
Coimbatore, India

April, the same as March, is another sweltering pre-monsoon summer month in Coimbatore, India, with an average temperature varying between 24.2°C (75.6°F) and 37.7°C (99.9°F).

Temperature

In Coimbatore, India, April is the month with the highest recorded average temperatures, measuring a high of 37.7°C (99.9°F) and a low of 24.2°C (75.6°F).

Heat index

The heat index for April is appraised at a burning hot 49°C (120.2°F). Precaution: Heat cramps along with heat exhaustion are possible. Heatstroke is a serious risk with continued exertion.
Observations indicate that the heat index values are for shady locations with light wind. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

In Coimbatore, the average relative humidity in April is 53%.

Rainfall

In April, the rain falls for 12.3 days. Throughout April, 33mm (1.3") of precipitation is accumulated. Throughout the year, there are 131.5 rainfall days, and 458mm (18.03") of precipitation is accumulated.

Daylight

In April, the average length of the day is 12h and 23min.
On the first day of the month, sunrise is at 6:18 am and sunset at 6:33 pm. On the last day of April, in Coimbatore, sunrise is at 6:03 am and sunset at 6:34 pm IST.

Sunshine

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

UV index

With an average maximum UV index of 8, April is the month with the highest UV index. A UV Index estimate of 8 to 10 represents a very high threat to health from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 8 in April interprets into the following recommendations:
Take special precautions, as unprotected skin can be damaged and can burn quickly. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.