April weather forecast
Watadeniya, Sri Lanka

April, the same as March, in Watadeniya, Sri Lanka, is a hot spring month, with an average temperature fluctuating between 20.8°C (69.4°F) and 31.2°C (88.2°F).

Temperature

The unfolding of April shows an average high-temperature of a still tropical 31.2°C (88.2°F), indicating a slight variance from March's 31.5°C (88.7°F). In Watadeniya, in April, the average low-temperature is an agreeable 20.8°C (69.4°F).

Heat index

April's average heat index is evaluated at a blistering 41°C (105.8°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

The average relative humidity in April is 79%.

Rainfall

In Watadeniya, in April, it is raining for 27 days, with typically 152mm (5.98") of accumulated precipitation. Throughout the year, in Watadeniya, there are 278.4 rainfall days, and 1466mm (57.72") of precipitation is accumulated.

Daylight

The average length of the day in April in Watadeniya is 12h and 17min.
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 05:53 and sunset at 18:16 +0530.

Sunshine

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

UV index

January through September, November and December, with an average maximum UV index of 6, are months with the highest UV index in Watadeniya, Sri Lanka. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 6 in April translates into these instructions:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.