May weather forecast
Naula, Sri Lanka

The last month of the spring, May, is another tropical month in Naula, Sri Lanka, with an average temperature ranging between max 31.8°C (89.2°F) and min 23°C (73.4°F).

Temperature

With the transition into May, Naula notes an average high-temperature of a still tropical 31.8°C (89.2°F), closely resembling April. Throughout May, the temperature in Naula tends to fall to a consistent average low of 23°C (73.4°F).

Heat index

In May, the heat index is calculated to be an extremely hot 42°C (107.6°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In May, the average relative humidity is 77%.

Rainfall

In Naula, Sri Lanka, in May, during 21.6 rainfall days, 117mm (4.61") of precipitation is typically accumulated. Throughout the year, there are 217.7 rainfall days, and 1165mm (45.87") of precipitation is accumulated.

Daylight

In Naula, the average length of the day in May is 12h and 29min.
On the first day of May in Naula, sunrise is at 05:52 and sunset at 18:16. On the last day of the month, sunrise is at 05:48 and sunset at 18:21 +0530.

Sunshine

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

UV index

March through September, with an average maximum UV index of 7, are months with the highest UV index in Naula. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index, 7 in May, converts into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun 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.