May weather forecast
Kaduwela, Sri Lanka

Cloudy skies dominate the weather in Kaduwela during the month of May. The sudden surge in rainfall from the previous month to 306mm (12.05") marks the arrival of the heavy monsoon season, which is more than twice that of April. The higher intensity of showers could limit some activities, but it does not diminish the natural beauty of the cityscape. As the month advances towards June, the city braces for higher degrees of rainfall. The charm of Kaduwela in the monsoon is unparalleled.

Temperature

An average high-temperature of a still hot 30.6°C (87.1°F) marks May, exhibiting a close resemblance to the conditions in April. Kaduwela upholds a consistent average temperature of 26.3°C (79.3°F) throughout the nights of May.

Heat index

May's heat index is estimated at a scorching 40°C (104°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. 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 particularly meaningful for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
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 at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

In May, the average relative humidity in Kaduwela is 81%.

Rainfall

In Kaduwela, Sri Lanka, during May, the rain falls for 28.8 days and regularly aggregates up to 306mm (12.05") of precipitation. In Kaduwela, Sri Lanka, during the entire year, the rain falls for 289.4 days and collects up to 2262mm (89.06") of precipitation.

Daylight

The average length of the day in May is 12h and 26min.
On the first day of the month, sunrise is at 05:55 and sunset at 18:18. On the last day of May, sunrise is at 05:52 and sunset at 18:22 +0530.

Sunshine

In May, the average sunshine is 8.6h.

UV index

The months with the lowest UV index in Kaduwela are May, June, August and October, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In May, a daily maximum UV index of 6 leads to the following instructions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Stay sun-safe with clothing that is both closely woven and worn loosely.