May weather forecast
Mampe South, Sri Lanka

The last month of the spring, May, is another hot month in Mampe South, Sri Lanka, with an average temperature fluctuating between 30.3°C (86.5°F) and 26.4°C (79.5°F).

Temperature

The arrival of May records an average high-temperature of a still hot 30.3°C (86.5°F), closely related to the 31.4°C (88.5°F) observed in April. Mampe South's nights in May maintain a consistent average of 26.4°C (79.5°F), demonstrating a minimal differential from its daytime temperature.

Heat index

For May, the heat index is appraised at a very hot 39°C (102.2°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

The average relative humidity in May is 81%.

Rainfall

In Mampe South, Sri Lanka, during May, the rain falls for 27.1 days and regularly aggregates up to 279mm (10.98") of precipitation. Throughout the year, in Mampe South, Sri Lanka, there are 272.3 rainfall days, and 2039mm (80.28") of precipitation is accumulated.

Daylight

In Mampe South, the average length of the day in May is 12h and 26min.
On the first day of May, sunrise is at 05:56 and sunset at 18:18. On the last day of the month, sunrise is at 05:53 and sunset at 18:22 +0530.

Sunshine

The average sunshine in May is 8.7h.

UV index

The months with the lowest UV index are May, June, August and October, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 6 in May translates into these instructions:
Resist overexposure. Safeguarding from solar damage is indispensable. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.