April weather forecast
Kataragama, Sri Lanka

April, the same as March, in Kataragama, Sri Lanka, is another hot spring month, with temperature in the range of an average low of 26°C (78.8°F) and an average high of 31.1°C (88°F).

Temperature

April stands out as Kataragama's warmest month, with an average high-temperature of 31.1°C (88°F) and a low-temperature of 26°C (78.8°F).

Heat index

The average heat index in April is evaluated at an extremely hot 40°C (104°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', comes about by integrating the temperature readings with the humidity levels. 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. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

In April, the average relative humidity is 77%.

Rainfall

In Kataragama, during April, the rain falls for 22.8 days and regularly aggregates up to 109mm (4.29") of precipitation. In Kataragama, during the entire year, the rain falls for 192.9 days and collects up to 942mm (37.09") of precipitation.

Daylight

The average length of the day in April is 12h and 16min.
On the first day of April, sunrise is at 06:02 and sunset at 18:14. On the last day of the month, sunrise is at 05:51 and sunset at 18:12 +0530.

Sunshine

In Kataragama, the average sunshine in April is 10.2h.

UV index

The months with the highest UV index are January through September, November and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk 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. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.