May weather forecast
Udawalawa, Sri Lanka

The last month of the spring, May, is another hot month in Udawalawa, Sri Lanka, with an average temperature ranging between max 30.8°C (87.4°F) and min 26.7°C (80.1°F).

Temperature

Udawalawa's weather in May indicates an average high-temperature of a still tropical 30.8°C (87.4°F), nearly consistent with the 31.1°C (88°F) of April. Nights in Udawalawa during May maintain a steady temperature, averaging at a moderately hot 26.7°C (80.1°F).

Heat index

May's mean heat index is computed to be a fiery hot 39°C (102.2°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

The average relative humidity in May in Udawalawa, Sri Lanka, is 77%.

Rainfall

In Udawalawa, in May, during 17.8 rainfall days, 72mm (2.83") of precipitation is typically accumulated. Throughout the year, there are 192.9 rainfall days, and 942mm (37.09") of precipitation is accumulated.

Daylight

In May, the average length of the day is 12h and 25min.
On the first day of May in Udawalawa, sunrise is at 05:53 and sunset at 18:14. On the last day of the month, sunrise is at 05:50 and sunset at 18:18 +0530.

Sunshine

The average sunshine in May in Udawalawa, Sri Lanka, is 10.9h.

UV index

The months with the highest UV index in Udawalawa are January through September, November and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 7 in May converts into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.