April weather forecast
Galahitiyawa South, Sri Lanka

April, like March, is another hot spring month in Galahitiyawa South, Sri Lanka, with an average temperature fluctuating between 26°C (78.8°F) and 32°C (89.6°F).

Temperature

The commencement of April records an average high-temperature of a still hot 32°C (89.6°F), barely varying from March's 32.1°C (89.8°F). During the nights in April, an average low-temperature of 26°C (78.8°F) is observed in Galahitiyawa South.

Heat index

April's heat index is calculated to be a blisteringly hot 43°C (109.4°F). Stay mindful: Heat exhaustion and heat cramps are likely. Heatstroke could follow extended physical effort.
Note that heat index values are valued for light wind and location in the shade. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. 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 quite important for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In Galahitiyawa South, Sri Lanka, the average relative humidity in April is 77%.

Rainfall

In Galahitiyawa South, during April, the rain falls for 23.4 days and regularly aggregates up to 112mm (4.41") of precipitation. Throughout the year, there are 265.4 rainfall days, and 1744mm (68.66") of precipitation is accumulated.

Daylight

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

Sunshine

The months with the most sunshine in Galahitiyawa South are January through April, with an average of 9.2h of sunshine.

UV index

The months with the highest UV index 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 threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 7 in April interprets into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. 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. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.