April weather forecast
Nintavur, Sri Lanka

April, the same as March, in Nintavur, Sri Lanka, is a hot spring month, with an average temperature varying between 31.8°C (89.2°F) and 25.9°C (78.6°F).

Temperature

The transition from March to April sees an average high-temperature of a still tropical 31.8°C (89.2°F), indicating a minor variance from the prior month. During April, an average low-temperature of 25.9°C (78.6°F) is observed in Nintavur.

Heat index

April's mean heat index is estimated at a scorching 42°C (107.6°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

The average relative humidity in April is 75%.

Rainfall

In April, in Nintavur, the rain falls for 19.1 days. Throughout April, 57mm (2.24") of precipitation is accumulated. Throughout the year, there are 237.8 rainfall days, and 1259mm (49.57") of precipitation is accumulated.

Daylight

In Nintavur, the average length of the day in April is 12h and 17min.
On the first day of April, sunrise is at 06:00 and sunset at 18:12. On the last day of the month, sunrise is at 05:48 and sunset at 18:11 +0530.

Sunshine

In Nintavur, the average sunshine in April is 11.2h.

UV index

The months with the highest UV index in Nintavur are January through October, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In April, the maximum UV index of 7 suggests this advice:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.