May weather forecast
Hulangamuwa, Sri Lanka

The last month of the spring, May, is also a hot month in Hulangamuwa, Sri Lanka, with an average temperature fluctuating between 31.8°C (89.2°F) and 23°C (73.4°F).

Temperature

May notes an average high-temperature of a still tropical 31.8°C (89.2°F), subtly differing from April's 32.9°C (91.2°F). In Hulangamuwa, May's nights observe an average temperature dip to a warm 23°C (73.4°F).

Heat index

The heat index value for May is calculated to be an extremely hot 42°C (107.6°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', reflects the feeling of heat when considering both air temperature and humidity. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels 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 especially vital to 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.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In May, the average relative humidity is 77%.

Rainfall

In Hulangamuwa, in May, during 21.6 rainfall days, 117mm (4.61") of precipitation is typically accumulated. Throughout the year, there are 218.8 rainfall days, and 1175mm (46.26") of precipitation is accumulated.

Daylight

In Hulangamuwa, the average length of the day in May is 12h and 28min.
On the first day of May, sunrise is at 05:52 and sunset at 18:16. On the last day of the month, sunrise is at 05:49 and sunset at 18:21 +0530.

Sunshine

In May, the average sunshine in Hulangamuwa is 10.7h.

UV index

March through September, with an average maximum UV index of 7, are months with the highest UV index in Hulangamuwa, Sri Lanka. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: In May, the maximum UV index of 7 suggests these recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Boost your sun resistance with garments that are densely woven yet spacious.