April weather forecast
Welikada, Sri Lanka

April, like March, is another tropical spring month in Welikada, Sri Lanka, with temperature in the range of an average low of 26°C (78.8°F) and an average high of 32°C (89.6°F).

Temperature

As Welikada, Sri Lanka, welcomes April, the average high-temperature is noted at a still tropical 32°C (89.6°F), closely aligning with the preceding month. During the month of April, an average temperature of 26°C (78.8°F) is noted during the nights in Welikada.

Heat index

For most parts of April, the heat index is calculated to be an extremely hot 43°C (109.4°F). Alert: Heat cramps and heat exhaustion are likely to occur. Prolonged exertion can lead to heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', takes into account both air temperature and humidity to illustrate what people actually feel. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. 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.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The average relative humidity in April is 77%.

Rainfall

In April, in Welikada, the rain falls for 23.4 days. Throughout April, 112mm (4.41") of precipitation is accumulated. Throughout the year, in Welikada, there are 265.4 rainfall days, and 1744mm (68.66") of precipitation is accumulated.

Daylight

The average length of the day in April in Welikada, Sri Lanka, is 12h and 17min.
On the first day of April in Welikada, Sri Lanka, 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

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

UV index

January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index in Welikada. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In April, the maximum UV index of 7 suggests this advice:
Deflect overexposure. Sun protection is a necessity. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.