May weather forecast
Nawala, Sri Lanka

May, the last month of the spring in Nawala, is another tropical month, with an average temperature ranging between max 30.6°C (87.1°F) and min 26.3°C (79.3°F).

Temperature

Nawala's average high-temperature in May sits at a still tropical 30.6°C (87.1°F), showing little difference from the previous month. May records a small disparity from daytime temperatures, marking an average low-temperature of 26.3°C (79.3°F).

Heat index

The heat index for May is appraised at a scorching 40°C (104°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', takes into account both air temperature and humidity to illustrate what people actually feel. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to 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.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In Nawala, the average relative humidity in May is 81%.

Rainfall

In Nawala, in May, it is raining for 28.8 days, with typically 306mm (12.05") of accumulated precipitation. Throughout the year, there are 289.4 rainfall days, and 2262mm (89.06") of precipitation is accumulated.

Daylight

In May, the average length of the day in Nawala is 12h and 26min.
On the first day of the month, sunrise is at 05:56 and sunset at 18:18. On the last day of May, sunrise is at 05:53 and sunset at 18:23 +0530.

Sunshine

In Nawala, Sri Lanka, the average sunshine in May is 8.6h.

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 threat to health from unsafe exposure to UV radiation for the average person.
Note: A daily high UV index of 6 in May leads to these guidelines:
Resist overexposure. Safeguarding from solar damage is indispensable. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit 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.