April weather forecast
Bowala, Sri Lanka

April, like March, is another tropical spring month in Bowala, Sri Lanka, with temperature in the range of an average high of 31.2°C (88.2°F) and an average low of 20.8°C (69.4°F).

Temperature

April records an average high-temperature of a still tropical 31.2°C (88.2°F), indicating a minor variation from the preceding month. Throughout April, Bowala witnesses a nighttime temperature average of 20.8°C (69.4°F).

Heat index

The heat index value during April is appraised at a scorching 41°C (105.8°F). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Data suggests that the heat index is set for environments in shade and with a light wind. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In Bowala, the average relative humidity in April is 79%.

Rainfall

In Bowala, in April, during 27 rainfall days, 152mm (5.98") of precipitation is typically accumulated. In Bowala, during the entire year, the rain falls for 278.9 days and collects up to 1477mm (58.15") of precipitation.

Daylight

In Bowala, Sri Lanka, the average length of the day in April is 12h and 17min.
On the first day of the month, sunrise is at 06:05 and sunset at 18:17. On the last day of April, sunrise is at 05:53 and sunset at 18:16 +0530.

Sunshine

The average sunshine in April is 9.4h.

UV index

January through September, November and December, with an average maximum UV index of 6, are months with the highest UV index in Bowala. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 6 during April translates into the following guidance:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.