May weather forecast
Mallavi, Sri Lanka

The last month of the spring, May, is also a hot month in Mallavi, Sri Lanka, with temperature in the range of an average low of 28.1°C (82.6°F) and an average high of 31.2°C (88.2°F).

Temperature

In May, Mallavi experiences a minor shift in meteorological conditions with average high-temperatures marked at a still hot 31.2°C (88.2°F), closely mirroring the climate in April. Nighttime temperatures in Mallavi hover around an average low of 28.1°C (82.6°F) in May, a slight descent from daytime highs.

Heat index

The heat index value for May is estimated at an extremely hot 40°C (104°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Heat index readings emphasize conditions of light breezes and shaded spots. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. 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 are largely significant for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The average relative humidity in May is 77%.

Rainfall

In Mallavi, Sri Lanka, in May, it is raining for 13.2 days, with typically 51mm (2.01") of accumulated precipitation. Throughout the year, in Mallavi, there are 181.2 rainfall days, and 849mm (33.43") of precipitation is accumulated.

Daylight

In Mallavi, the average length of the day in May is 12h and 32min.
On the first day of May in Mallavi, Sri Lanka, sunrise is at 05:52 and sunset at 18:19. On the last day of the month, sunrise is at 05:47 and sunset at 18:25 +0530.

Sunshine

In Mallavi, Sri Lanka, the average sunshine in May is 11.2h.

UV index

January through October and December, 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 health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 7 in May converts into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. 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. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.