April weather forecast
Modara, Sri Lanka

April, like March, is another hot spring month in Modara, Sri Lanka, with an average temperature ranging between min 21.1°C (70°F) and max 30°C (86°F).

Temperature

The average high-temperature during April registers at a still hot 30°C (86°F), closely corresponding to the preceding month. In the month of April, the nighttime temperature dips to a steady average of 21.1°C (70°F).

Heat index

During April, the heat index is appraised at a very hot 39°C (102.2°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

The average relative humidity in April in Modara is 86%.

Rainfall

In Modara, Sri Lanka, during April, the rain falls for 29.4 days and regularly aggregates up to 248mm (9.76") of precipitation. In Modara, during the entire year, the rain falls for 317.3 days and collects up to 2422mm (95.35") of precipitation.

Daylight

In Modara, 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 18:18 +0530.

Sunshine

The month with the most sunshine is April, with an average of 8.4h of sunshine.

UV index

The months with the highest UV index in Modara are January through August, 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 unprotected exposure to Sun's UV rays for the average person.
Note: In April, the average maximum UV index of 6 translates into the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.