April weather forecast
Bentota, Sri Lanka

April introduces Bentota to its rainiest period as the rainfall nearly doubles to reach 127mm (5") from the previous month. As a tropical country, the higher rainfall doesn't decrease Bentota's appeal as the showers are usually quickly replaced by bright, sunny weather. Even though April comes with more rain, the weather conditions overall remain fairly stable and warm. The presence of rain also brings about lush greenery, adding charm to the natural beauty of Bentota. Moving around the city and taking in the sights won't be greatly hindered during this month due to the uplifting brevity of showers.

Temperature

March and April mark Bentota's peak of temperatures, averaging a high-temperature of 31.3°C (88.3°F).

Heat index

In April, the average heat index is estimated at a blistering 41°C (105.8°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
Observations indicate that the heat index values are for shady locations with light wind. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', melds the effects of warmth and moisture to generate a feeling of heat. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In Bentota, the average relative humidity in April is 78%.

Rainfall

In Bentota, during April, the rain falls for 25.8 days and regularly aggregates up to 127mm (5") of precipitation. In Bentota, during the entire year, the rain falls for 273.8 days and collects up to 2059mm (81.06") of precipitation.

Sea temperature

The month with the warmest seawater is April, with an average sea temperature of 29.6°C (85.3°F).
Note: In water temperatures ranging between 25°C (77°F) and 29°C (84.2°F), activities such as swimming and diving become highly pleasurable for long durations.

Daylight

In April, the average length of the day in Bentota is 12h and 16min.
On the first day of the month, sunrise is at 06:08 and sunset at 18:19. On the last day of April, sunrise is at 05:56 and sunset at 18:17 +0530.

Sunshine

The average sunshine in April in Bentota is 9h.

UV index

The months with the highest UV index are January through April, July, September through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In April, the maximum UV index of 7 translates into these guidelines:
Resist overexposure. Safeguarding from solar damage is indispensable. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Boost your sun resistance with garments that are densely woven yet spacious. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.