May weather forecast
Kiran, Sri Lanka

May, the last month of the spring in Kiran, is another hot month, with an average temperature fluctuating between 32.7°C (90.9°F) and 26.6°C (79.9°F).

Temperature

With the onset of May, the average high-temperature registers at a still hot 32.7°C (90.9°F), subtly different from April's 31.8°C (89.2°F). During the nights in May, Kiran experiences a consistent average temperature of 26.6°C (79.9°F).

Heat index

The heat index in May is calculated to be a blistering 44°C (111.2°F). Take caution: Heat exhaustion and heat cramps are probable. Heatstroke may be imminent with ongoing effort.
For clarity, heat index numbers account for light winds and areas under shade. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a single figure representing how weather conditions feel when combining temperature and humidity. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In Kiran, the average relative humidity in May is 74%.

Rainfall

In Kiran, during May, the rain falls for 20.7 days and regularly aggregates up to 79mm (3.11") of precipitation. Throughout the year, in Kiran, Sri Lanka, there are 237.8 rainfall days, and 1259mm (49.57") of precipitation is accumulated.

Daylight

In May, the average length of the day is 12h and 29min.
On the first day of the month, sunrise is at 05:48 and sunset at 18:13. On the last day of May, sunrise is at 05:45 and sunset at 18:18 +0530.

Sunshine

The average sunshine in May is 11.6h.

UV index

The months with the highest UV index are January through October, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: In May, the maximum UV index of 7 translates into these guidelines:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.