April weather forecast
Yakkala, Sri Lanka

April, the same as March, in Yakkala, Sri Lanka, is a hot spring month, with an average temperature fluctuating between 26°C (78.8°F) and 32°C (89.6°F).

Temperature

The advent of April brings an average high-temperature of a still hot 32°C (89.6°F), exhibiting minor difference from the previous month. In April, Yakkala encounters an average low-temperature of 26°C (78.8°F) during the night.

Heat index

For most parts of April, the heat index is appraised at an extremely hot 43°C (109.4°F). Stay vigilant: Heat cramps along with heat exhaustion are expected. Heatstroke may follow prolonged exertion.
It is important to note that the heat index values are for shaded areas and light wind scenarios. 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 'apparent temperature' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In April, the average relative humidity is 77%.

Rainfall

In April, the rain falls for 23.4 days. Throughout April, 112mm (4.41") of precipitation is accumulated. In Yakkala, during the entire year, the rain falls for 265.4 days and collects up to 1744mm (68.66") of precipitation.

Daylight

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

Sunshine

The months with the most sunshine in Yakkala 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 reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index, 7 in April, converts into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.