May weather forecast
Hiriwadunna, Sri Lanka

The last month of the spring, May, is also a hot month in Hiriwadunna, Sri Lanka, with an average temperature varying between 34.2°C (93.6°F) and 24.5°C (76.1°F).

Temperature

Hiriwadunna's weather in May indicates an average high-temperature of a still hot 34.2°C (93.6°F), nearly consistent with the 34.9°C (94.8°F) of April. An average low-temperature of 24.5°C (76.1°F) is recorded during the nights in May in Hiriwadunna.

Heat index

May's heat index is appraised at a blazing hot 49°C (120.2°F). Be cautious: Heat exhaustion along with heat cramps are predicted. Heatstroke is a possible consequence of continuous physical effort.
The standards for the heat index are set for locations in shade and under light breezes. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In Hiriwadunna, Sri Lanka, the average relative humidity in May is 72%.

Rainfall

In Hiriwadunna, during May, the rain falls for 17.4 days and regularly aggregates up to 83mm (3.27") of precipitation. Throughout the year, there are 196.8 rainfall days, and 943mm (37.13") of precipitation is accumulated.

Daylight

In Hiriwadunna, the average length of the day in May is 12h and 29min.
On the first day of the month, sunrise is at 05:51 and sunset at 18:16. On the last day of May, sunrise is at 05:48 and sunset at 18:21 +0530.

Sunshine

In May, the average sunshine in Hiriwadunna is 11.2h.

UV index

The months with the highest UV index are February through October, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.
Note: A maximum high daily UV index of 7 during May translates into the following directions:
Shun overexposure. Protection from sun ravages is indispensable. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.