April weather forecast
Kahawatta, Sri Lanka

April, like March, is another tropical spring month in Kahawatta, Sri Lanka, with an average temperature ranging between max 30°C (86°F) and min 21.1°C (70°F).

Temperature

As Kahawatta transitions into April, the average high-temperature stands at a still hot 30°C (86°F), offering little variation from the preceding month. In Kahawatta, April nights cool down to an average of 21.1°C (70°F).

Heat index

For most parts of April, the heat index is computed to be a fiery hot 39°C (102.2°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The average relative humidity in April is 86%.

Rainfall

In Kahawatta, in April, during 29.4 rainfall days, 248mm (9.76") of precipitation is typically accumulated. In Kahawatta, during the entire year, the rain falls for 317.3 days and collects up to 2422mm (95.35") of precipitation.

Daylight

The average length of the day in April is 12h and 16min.
On the first day of the month, sunrise is at 06:05 and sunset at 18:17. On the last day of April, sunrise is at 05:54 and sunset at 18:15 +0530.

Sunshine

The month with the most sunshine in Kahawatta is April, with an average of 8.4h of sunshine.

UV index

The months with the highest UV index are January through August, November and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: A maximum UV index of 6 in April translates into the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.