May weather forecast
Santhiveli, Sri Lanka

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

Temperature

Santhiveli's average high-temperature in May is a still hot 32.7°C (90.9°F), marking an insignificant difference from the 31.8°C (89.2°F) of April. In Santhiveli, May's nights observe an average temperature dip to a warm 26.6°C (79.9°F).

Heat index

During May, the heat index is calculated to be a blisteringly hot 44°C (111.2°F). Be on the lookout: Heat cramps and heat exhaustion are anticipated. Continued exertion can result in heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

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

Rainfall

In Santhiveli, in May, it is raining for 20.7 days, with typically 79mm (3.11") of accumulated precipitation. In Santhiveli, during the entire year, the rain falls for 237.8 days and collects up to 1259mm (49.57") of precipitation.

Daylight

In Santhiveli, the average length of the day in May is 12h and 29min.
On the first day of May, sunrise is at 05:48 and sunset at 18:13. On the last day of the month, sunrise is at 05:45 and sunset at 18:17 +0530.

Sunshine

The average sunshine in May in Santhiveli is 11.6h.

UV index

January through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In May, the maximum UV index of 7 suggests these recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.