April weather forecast
Nilaveli, Sri Lanka

April, like March, is a hot spring month in Nilaveli, Sri Lanka, with an average temperature varying between 23.5°C (74.3°F) and 34.9°C (94.8°F).

Temperature

April, noted for its average high-temperature of 34.9°C (94.8°F) and an average low-temperature of 23.5°C (74.3°F), is considered the warmest month.

Heat index

During April, the heat index is appraised at a burning hot 52°C (125.6°F). Observe: Heat exhaustion and heat cramps are probable. Heatstroke is on the horizon with prolonged exertion.
Heat index details are generally centered around shaded locations and a mild breeze. 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 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

In Nilaveli, the average relative humidity in April is 73%.

Rainfall

In Nilaveli, in April, during 23.6 rainfall days, 103mm (4.06") of precipitation is typically accumulated. In Nilaveli, Sri Lanka, during the entire year, the rain falls for 196.8 days and collects up to 943mm (37.13") of precipitation.

Daylight

The average length of the day in April in Nilaveli is 12h and 19min.
On the first day of the month, sunrise is at 06:02 and sunset at 18:15. On the last day of April, sunrise is at 05:49 and sunset at 18:15 +0530.

Sunshine

In Nilaveli, the average sunshine in April is 10.1h.

UV index

February through October, with an average maximum UV index of 7, are months with the highest UV index in Nilaveli. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: During April, 7 as the daily maximum UV index converts into the following advice:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.