May weather forecast
Rattota, Sri Lanka

May, the last month of the spring in Rattota, is another tropical month, with an average temperature varying between 23°C (73.4°F) and 31.8°C (89.2°F).

Temperature

As Rattota steps into May, the average high-temperature holds at a still tropical 31.8°C (89.2°F), hinting at a minor fluctuation from the prior month. Rattota experiences a nighttime temperature average of 23°C (73.4°F) during May.

Heat index

The heat index value for May is computed to be an extremely hot 42°C (107.6°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

In May, the average relative humidity is 77%.

Rainfall

In Rattota, during May, the rain falls for 21.6 days and regularly aggregates up to 117mm (4.61") of precipitation. In Rattota, Sri Lanka, during the entire year, the rain falls for 217.7 days and collects up to 1165mm (45.87") of precipitation.

Daylight

In Rattota, the average length of the day in May is 12h and 28min.
On the first day of May in Rattota, sunrise is at 05:52 and sunset at 18:16. On the last day of the month, sunrise is at 05:49 and sunset at 18:20 +0530.

Sunshine

The average sunshine in May in Rattota, Sri Lanka, is 10.7h.

UV index

The months with the highest UV index in Rattota are March through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 7 in May leads to these recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.