April weather forecast
Kathiraveli, Sri Lanka

April, the same as March, in Kathiraveli, Sri Lanka, is a hot spring month, with temperature in the range of an average high of 31.8°C (89.2°F) and an average low of 25.9°C (78.6°F).

Temperature

The arrival of April sees a recorded average high-temperature of a still hot 31.8°C (89.2°F), showing little divergence from the previous month's conditions. In Kathiraveli, April is marked by an average low-temperature of 25.9°C (78.6°F).

Heat index

For April, the heat index is estimated at a blisteringly hot 42°C (107.6°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. 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. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

In April, the average relative humidity is 75%.

Rainfall

In Kathiraveli, in April, it is raining for 19.1 days, with typically 57mm (2.24") of accumulated precipitation. In Kathiraveli, during the entire year, the rain falls for 237.8 days and collects up to 1259mm (49.57") of precipitation.

Daylight

In April, the average length of the day is 12h and 19min.
On the first day of the month, sunrise is at 06:01 and sunset at 18:14. On the last day of April, sunrise is at 05:49 and sunset at 18:13 +0530.

Sunshine

The average sunshine in April is 11.2h.

UV index

The months with the highest UV index are January through October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 7 during April leads to these instructions:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.