May weather forecast
Aranayaka, Sri Lanka

The last month of the spring, May, is another hot month in Aranayaka, Sri Lanka, with an average temperature varying between 30.1°C (86.2°F) and 21.8°C (71.2°F).

Temperature

The advent of May brings an average high-temperature of a still tropical 30.1°C (86.2°F), almost identical to the preceding month. During the nights in May, Aranayaka experiences a consistent average temperature of 21.8°C (71.2°F).

Heat index

The heat index in May is appraised at a sweltering 38°C (100.4°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. 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. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

In May, the average relative humidity in Aranayaka is 80%.

Rainfall

In Aranayaka, in May, it is raining for 28.6 days, with typically 163mm (6.42") of accumulated precipitation. Throughout the year, in Aranayaka, there are 278.4 rainfall days, and 1466mm (57.72") of precipitation is accumulated.

Daylight

The average length of the day in May in Aranayaka is 12h and 27min.
On the first day of May, sunrise is at 05:53 and sunset at 18:16. On the last day of the month, sunrise is at 05:50 and sunset at 18:21 +0530.

Sunshine

In Aranayaka, the average sunshine in May is 10.4h.

UV index

The months with the highest UV index in Aranayaka, Sri Lanka, are January through September, November and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In May, the UV index of 6 transforms into the following advice:
Shield from overexposure. Defense against sun-related harm is required. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total 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.