April weather forecast
Panwila, Sri Lanka

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

Temperature

Panwila, Sri Lanka, in April witnesses an average high-temperature of a still tropical 31.2°C (88.2°F), indicating a slight variation from March's 31.5°C (88.7°F). In the month of April, Panwila experiences an average low-temperature of 20.8°C (69.4°F).

Heat index

The heat index value for April is appraised at an extremely hot 41°C (105.8°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. 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', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. 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. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

In April, the average relative humidity is 79%.

Rainfall

In Panwila, in April, during 27 rainfall days, 152mm (5.98") of precipitation is typically accumulated. In Panwila, 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 the month, sunrise is at 06:05 and sunset at 18:16. On the last day of April, sunrise is at 05:52 and sunset at 18:15 +0530.

Sunshine

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

UV index

The months with the highest UV index are January through September, November and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: A daily maximum UV index of 6 in April translates into the following instructions:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.