May weather forecastWavinna, Sri Lanka

Weather in May

May, the last month of the spring in Wavinna, is another hot month, with an average temperature fluctuating between 30.1°C (86.2°F) and 21.8°C (71.2°F).

Temperature

The commencement of May introduces an average high-temperature of a still hot 30.1°C (86.2°F), closely mirroring the preceding month. Throughout May nights, Wavinna experiences a consistent temperature average of 21.8°C (71.2°F).

Heat index

The heat index for May is appraised at a very hot 38°C (100.4°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

The average relative humidity in May is 80%.

Rainfall

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

Daylight

The average length of the day in May is 12h and 28min.
On the first day of the month, sunrise is at 05:52 and sunset at 18:15. On the last day of May, sunrise is at 05:49 and sunset at 18:20 +0530.

Sunshine

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

UV index

January through September, November and December, with an average maximum UV index of 6, are months with the highest UV index in Wavinna. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: A maximum high daily UV index of 6 during May translates into the following directions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.