May weather forecast
Mawanella, Sri Lanka

The last month of the spring, May, is another hot month in Mawanella, Sri Lanka, with an average temperature varying between 21.8°C (71.2°F) and 30.1°C (86.2°F).

Temperature

May brings an average high-temperature of a still tropical 30.1°C (86.2°F), nearly identical to the preceding month. In May, Mawanella reports a consistent average low-temperature of 21.8°C (71.2°F) during the nights.

Heat index

The heat index for May is appraised at a sweltering 38°C (100.4°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', shows a temperature sensation when both heat and moisture conditions are combined. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In May, the average relative humidity is 80%.

Rainfall

In Mawanella, during May, the rain falls for 28.6 days and regularly aggregates up to 163mm (6.42") of precipitation. In Mawanella, during the entire year, the rain falls for 278.4 days and collects up to 1466mm (57.72") of precipitation.

Daylight

In May, the average length of the day in Mawanella is 12h and 27min.
On the first day of the month, sunrise is at 05:53 and sunset at 18:16. On the last day of May, in Mawanella, Sri Lanka, sunrise is at 05:50 and sunset at 18:21 +0530.

Sunshine

In Mawanella, Sri Lanka, the average sunshine in May is 10.4h.

UV index

January through September, November and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 6 in May translates into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.