April weather forecast
Kaliyammahara, Sri Lanka

April, the same as March, in Kaliyammahara, Sri Lanka, is a hot spring month, with an average temperature fluctuating between 31.4°C (88.5°F) and 26°C (78.8°F).

Temperature

March and April, with an average high-temperature of 31.4°C (88.5°F), are the warmest months.

Heat index

For most parts of April, the heat index is appraised at a blistering 41°C (105.8°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a composite of temperature and humidity figures to convey how warm it feels. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In April, the average relative humidity in Kaliyammahara is 78%.

Rainfall

In Kaliyammahara, in April, during 24.4 rainfall days, 99mm (3.9") of precipitation is typically accumulated. Throughout the year, in Kaliyammahara, there are 272.3 rainfall days, and 2039mm (80.28") of precipitation is accumulated.

Daylight

In Kaliyammahara, Sri Lanka, 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 18:19. On the last day of April, in Kaliyammahara, Sri Lanka, sunrise is at 05:56 and sunset at 18:18 +0530.

Sunshine

The average sunshine in April is 9h.

UV index

The months with the highest UV index in Kaliyammahara, Sri Lanka, are January through April, July, September, November and December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index, 7 during April, leads to the following recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.