April weather forecast
Koggala, Sri Lanka

April, like March, is a hot spring month in Koggala, Sri Lanka, with an average temperature ranging between max 30.3°C (86.5°F) and min 26.5°C (79.7°F).

Temperature

April, with its high-temperature average of 30.3°C (86.5°F) and a low-temperature average of 26.5°C (79.7°F), is the warmest month.

Heat index

During April, the heat index is appraised at a torrid 38°C (100.4°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
Heat index specifics point out values are for conditions of shade and a slight breeze. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. 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 are extremely vital to babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in April in Koggala, Sri Lanka, is 78%.

Rainfall

In April, in Koggala, Sri Lanka, the rain falls for 25.8 days. Throughout April, 119mm (4.69") of precipitation is accumulated. In Koggala, Sri Lanka, during the entire year, the rain falls for 292.9 days and collects up to 1842mm (72.52") of precipitation.

Daylight

The average length of the day in April in Koggala is 12h and 16min.
On the first day of the month, sunrise is at 06:07 and sunset at 18:17. On the last day of April, in Koggala, sunrise is at 05:55 and sunset at 18:15 +0530.

Sunshine

April has the most sunshine of the year in Koggala, with an average of 9.4h of sunshine.

UV index

The months with the highest UV index are January through April, July, August, October through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 7 during April translates into the following guidance:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.