May weather forecast
Brandiyawatta, Sri Lanka

May, the last month of the spring in Brandiyawatta, is another tropical 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

The arrival of May sees an average high-temperature of a still tropical 30.6°C (87.1°F), hardly diverging from April's 31.8°C (89.2°F). The temperature in Brandiyawatta during May experiences a small drop from daytime peaks, recording an average of 26.3°C (79.3°F) at night.

Heat index

For May, the heat index is estimated at a blistering 40°C (104°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', reflects the feeling of heat when considering both air temperature and humidity. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

The average relative humidity in May in Brandiyawatta is 81%.

Rainfall

In Brandiyawatta, in May, it is raining for 28.8 days, with typically 306mm (12.05") of accumulated precipitation. Throughout the year, there are 289.4 rainfall days, and 2262mm (89.06") of precipitation is accumulated.

Daylight

In Brandiyawatta, Sri Lanka, the average length of the day in May is 12h and 26min.
On the first day of the month, sunrise is at 05:56 and sunset at 18:18. On the last day of May, in Brandiyawatta, sunrise is at 05:53 and sunset at 18:23 +0530.

Sunshine

The average sunshine in May is 8.6h.

UV index

May, June, August and October, with an average maximum UV index of 6, are months with the lowest UV index in Brandiyawatta. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: In May, the UV index of 6 transforms into the following advice:
Resist overexposure. Safeguarding from solar damage is indispensable. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.