May weather forecast
Kalupahana, Sri Lanka

The last month of the spring, May, is another warm month in Kalupahana, Sri Lanka, with an average temperature ranging between max 29.5°C (85.1°F) and min 26.7°C (80.1°F).

Temperature

May's arrival registers an average high-temperature of a moderately hot 29.5°C (85.1°F), closely aligning with the temperature of the previous month. Kalupahana experiences a minimal drop from daytime high temperatures, recording an average low-temperature of 26.7°C (80.1°F) throughout May.

Heat index

For May, the heat index is appraised at a torrid 36°C (96.8°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

The average relative humidity in May is 81%.

Rainfall

The month with the most rainfall is May, when the rain falls for 27.7 days and typically aggregates up to 302mm (11.89") of precipitation.

Daylight

The average length of the day in May is 12h and 25min.
On the first day of the month, sunrise is at 05:55 and sunset at 18:17. On the last day of May, sunrise is at 05:52 and sunset at 18:21 +0530.

Sunshine

In May, the average sunshine is 9h.

UV index

May and September, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: A daily high UV index of 6 in May leads to these guidelines:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.