April weather forecast
Periyamulla, Sri Lanka

April, the same as March, in Periyamulla, Sri Lanka, is a hot spring month, with an average temperature varying between 26°C (78.8°F) and 32°C (89.6°F).

Temperature

Periyamulla experiences a subtle adjustment in high-temperatures to a still tropical 32°C (89.6°F) with the onset of April, maintaining near parity with March's 32.1°C (89.8°F). Throughout April, an average low-temperature of 26°C (78.8°F) is expected.

Heat index

Throughout April, the heat index is estimated at a blistering 43°C (109.4°F). Take heed: Heat exhaustion and heat cramps are anticipated. Heatstroke is a potential outcome of continuous activity.
For clarity, heat index numbers account for light winds and areas under shade. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the 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 quite important for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

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

Rainfall

In Periyamulla, Sri Lanka, in April, during 23.4 rainfall days, 112mm (4.41") of precipitation is typically accumulated. In Periyamulla, during the entire year, the rain falls for 265.4 days and collects up to 1744mm (68.66") of precipitation.

Daylight

In Periyamulla, Sri Lanka, the average length of the day in April is 12h and 17min.
On the first day of April, sunrise is at 06:08 and sunset at 18:20. On the last day of the month, sunrise is at 05:56 and sunset at 18:19 +0530.

Sunshine

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

UV index

January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index in Periyamulla. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 7 in April leads to these recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.