April weather forecast
Dunagaha, Sri Lanka

April, like March, is another tropical spring month in Dunagaha, Sri Lanka, with an average temperature ranging between max 32°C (89.6°F) and min 26°C (78.8°F).

Temperature

The average high-temperature is a still hot 32°C (89.6°F) in April, hardly different from the 32.1°C (89.8°F) recorded in March. During the month of April, the temperature in Dunagaha falls to an average of 26°C (78.8°F).

Heat index

April's average heat index is calculated to be an extremely hot 43°C (109.4°F). Be alert: Heat exhaustion along with heat cramps are probable. Heatstroke is a threat with sustained physical activity.
It is important to note that the heat index values are for shaded areas and light wind scenarios. 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 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to 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.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

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

Rainfall

In Dunagaha, Sri Lanka, during April, the rain falls for 23.4 days and regularly aggregates up to 112mm (4.41") of precipitation. In Dunagaha, during the entire year, the rain falls for 265.4 days and collects up to 1744mm (68.66") of precipitation.

Daylight

In Dunagaha, 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 Dunagaha, sunrise is at 05:55 and sunset at 18:18 +0530.

Sunshine

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

UV index

The months with the highest UV index in Dunagaha are January through April, July, September, November and December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In April, the maximum UV index of 7 suggests these recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.