May weather forecast
Pamunuwa, Sri Lanka

May, the last month of the spring in Pamunuwa, is also a hot month, with an average temperature fluctuating between 26.3°C (79.3°F) and 30.6°C (87.1°F).

Temperature

The arrival of May marks a slight shift to an average high-temperature of a still hot 30.6°C (87.1°F) from April's 31.8°C (89.2°F). An average low-temperature of 26.3°C (79.3°F) is witnessed throughout the month of May, a mere drop from the daytime peak.

Heat index

May's average heat index is appraised at a blistering 40°C (104°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', comes about by integrating the temperature readings with the humidity levels. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold great significance to children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

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

Rainfall

In Pamunuwa, in May, it is raining for 28.8 days, with typically 306mm (12.05") of accumulated precipitation. In Pamunuwa, during the entire year, the rain falls for 289.4 days and collects up to 2262mm (89.06") of precipitation.

Daylight

The average length of the day in May 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 18:22 +0530.

Sunshine

In May, the average sunshine 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 value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: A maximum high daily UV index of 6 during May translates into the following directions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.