April weather forecast
Hunnasgiriya, Sri Lanka

April, the same as March, in Hunnasgiriya, Sri Lanka, is another tropical spring month, with temperature in the range of an average low of 20.8°C (69.4°F) and an average high of 31.2°C (88.2°F).

Temperature

Entering April, Hunnasgiriya's average high-temperature reads a still tropical 31.2°C (88.2°F), indicating a close resemblance to the previous month's climate. Throughout the month of April, Hunnasgiriya sees a steady low-temperature average of 20.8°C (69.4°F).

Heat index

For most parts of April, the heat index is appraised at an extremely hot 41°C (105.8°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In April, the average relative humidity in Hunnasgiriya is 79%.

Rainfall

In Hunnasgiriya, during April, the rain falls for 27 days and regularly aggregates up to 152mm (5.98") of precipitation. In Hunnasgiriya, during the entire year, the rain falls for 278.4 days and collects up to 1466mm (57.72") of precipitation.

Daylight

In April, the average length of the day is 12h and 17min.
On the first day of the month, sunrise is at 06:04 and sunset at 18:16. On the last day of April, in Hunnasgiriya, sunrise is at 05:52 and sunset at 18:15 +0530.

Sunshine

In April, the average sunshine in Hunnasgiriya is 9.4h.

UV index

The months with the highest UV index in Hunnasgiriya are January through September, November and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 6 in April translates into these instructions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.