April weather forecast
Kimbulapitiya, Sri Lanka

April, like March, is a hot spring month in Kimbulapitiya, Sri Lanka, with an average temperature fluctuating between 26°C (78.8°F) and 32°C (89.6°F).

Temperature

The arrival of April denotes a barely perceptible change in the average high-temperatures to a still tropical 32°C (89.6°F) from March's 32.1°C (89.8°F). April witnesses an average nighttime temperature of 26°C (78.8°F).

Heat index

The heat index in April is computed to be a blistering 43°C (109.4°F). Caution: Heat cramps along with heat exhaustion are expected. Sustained activity could lead to heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. 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 'apparent temperature' or 'felt air temperature', takes into account both air temperature and humidity to illustrate what people actually feel. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

In Kimbulapitiya, the average relative humidity in April is 77%.

Rainfall

In April, in Kimbulapitiya, the rain falls for 23.4 days. Throughout April, 112mm (4.41") of precipitation is accumulated. Throughout the year, in Kimbulapitiya, Sri Lanka, there are 265.4 rainfall days, and 1744mm (68.66") of precipitation is accumulated.

Daylight

In Kimbulapitiya, the average length of the day in April is 12h and 17min.
On the first day of the month, sunrise is at 06:08 and sunset at 18:20. On the last day of April, sunrise is at 05:56 and sunset at 18:18 +0530.

Sunshine

The months with the most sunshine are January through April, with an average of 9.2h of sunshine.

UV index

January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index in Kimbulapitiya. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 7 in April translates into these instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.