May weather forecast
Welikadamulla, Sri Lanka

May, the last month of the spring in Welikadamulla, is another hot month, with temperature in the range of an average low of 26.3°C (79.3°F) and an average high of 30.6°C (87.1°F).

Temperature

As May unfolds, the average high-temperature reaches a still hot 30.6°C (87.1°F), hinting at a slight fluctuation from the previous month. Welikadamulla's evenings during May maintain an average temperature of 26.3°C (79.3°F), aligning closely with the daytime temperatures.

Heat index

The heat index value during May is computed to be a blisteringly hot 40°C (104°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In May, the average relative humidity is 81%.

Rainfall

In Welikadamulla, in May, during 28.8 rainfall days, 306mm (12.05") of precipitation is typically accumulated. In Welikadamulla, during the entire year, the rain falls for 289.4 days and collects up to 2262mm (89.06") of precipitation.

Daylight

The average length of the day in May in Welikadamulla is 12h and 27min.
On the first day of May, sunrise is at 05:55 and sunset at 18:17. On the last day of the month, sunrise is at 05:51 and sunset at 18:22 +0530.

Sunshine

The average sunshine in May in Welikadamulla is 8.6h.

UV index

The months with the lowest UV index are May, June, August and October, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 6 during May leads to these instructions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.