May weather forecast
Weragantota, Sri Lanka

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

Temperature

With the onset of May, the average high-temperature registers at a still tropical 30.1°C (86.2°F), subtly different from April's 31.2°C (88.2°F). Weragantota experiences a nighttime temperature average of 21.8°C (71.2°F) during May.

Heat index

May's heat index is calculated to be a sweltering 38°C (100.4°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The average relative humidity in May is 80%.

Rainfall

In Weragantota, during May, the rain falls for 28.6 days and regularly aggregates up to 163mm (6.42") of precipitation. In Weragantota, during the entire year, the rain falls for 278.4 days and collects up to 1466mm (57.72") of precipitation.

Daylight

The average length of the day in May in Weragantota is 12h and 28min.
On the first day of May, sunrise is at 05:51 and sunset at 18:14. On the last day of the month, sunrise is at 05:48 and sunset at 18:19 +0530.

Sunshine

The average sunshine in May in Weragantota is 10.4h.

UV index

The months with the highest UV index are January through September, November and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In May, the average maximum UV index of 6 translates into the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.