April weather forecast
Polgahawela, Sri Lanka

April, the same as March, in Polgahawela, Sri Lanka, is another hot spring month, with an average temperature ranging between max 31.2°C (88.2°F) and min 20.8°C (69.4°F).

Temperature

April's arrival shows an average high-temperature of a still hot 31.2°C (88.2°F), hardly different from the previous month. An average minimum temperature of 20.8°C (69.4°F) is recorded during the month of April.

Heat index

The average heat index in April is estimated at a blistering 41°C (105.8°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In Polgahawela, the average relative humidity in April is 79%.

Rainfall

In Polgahawela, in April, during 27 rainfall days, 152mm (5.98") of precipitation is typically accumulated. In Polgahawela, during the entire year, the rain falls for 278.4 days and collects up to 1466mm (57.72") of precipitation.

Daylight

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

Sunshine

The average sunshine in April 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. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 6 in April translates into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.