April weather forecast
Hanwella, Sri Lanka

April, the same as March, in Hanwella, Sri Lanka, is another tropical spring month, with temperature in the range of an average low of 25.8°C (78.4°F) and an average high of 31.8°C (89.2°F).

Temperature

In Hanwella, the months of March and April register the highest average temperatures, peaking at 31.8°C (89.2°F).

Heat index

For April, the heat index is calculated to be an extremely hot 42°C (107.6°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Note that heat index values are valued for light wind and location in the shade. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

The average relative humidity in April in Hanwella is 77%.

Rainfall

In Hanwella, in April, it is raining for 25.4 days, with typically 137mm (5.39") of accumulated precipitation. Throughout the year, in Hanwella, Sri Lanka, there are 289.4 rainfall days, and 2262mm (89.06") of precipitation is accumulated.

Daylight

The average length of the day in April in Hanwella is 12h and 17min.
On the first day of April, sunrise is at 06:07 and sunset at 18:19. On the last day of the month, sunrise is at 05:55 and sunset at 18:17 +0530.

Sunshine

In April, the average sunshine is 8.9h.

UV index

The months with the highest UV index in Hanwella are January through April, July, September, November and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 7 during April translates into the following recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.