May weather forecast
Vellaveli, Sri Lanka

The last month of the spring, May, is also a hot month in Vellaveli, Sri Lanka, with an average temperature fluctuating between 26.6°C (79.9°F) and 32.7°C (90.9°F).

Temperature

The average high-temperature during May registers at a still hot 32.7°C (90.9°F), closely corresponding to the preceding month. May brings an average low-temperature of 26.6°C (79.9°F) to Vellaveli.

Heat index

The heat index value for May is calculated to be a blistering 44°C (111.2°F). Keep on guard: Heat exhaustion and heat cramps are probable. Heatstroke is a possible danger with ongoing physical activity.
Factoring in the heat index, values are geared towards shaded areas with light breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

In May, the average relative humidity in Vellaveli, Sri Lanka, is 74%.

Rainfall

In May, in Vellaveli, the rain falls for 20.7 days. Throughout May, 79mm (3.11") of precipitation is accumulated. Throughout the year, 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 28min.
On the first day of May, sunrise is at 05:48 and sunset at 18:11. On the last day of the month, sunrise is at 05:44 and sunset at 18:16 +0530.

Sunshine

In May, the average sunshine 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 value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 7 during May translates into the following directions:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.