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

May denotes a minimal variation in the average high-temperature to a still tropical 30.6°C (87.1°F) from April's 31.8°C (89.2°F). Recording a slight drop from the daily maximum, Kaduwela notes an average low temperature of 26.3°C (79.3°F) in the month of May.

Heat index

The average heat index in May is calculated to be a blisteringly hot 40°C (104°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In May, the average relative humidity is 81%.

Rainfall

In Kaduwela, in May, during 28.8 rainfall days, 306mm (12.05") of precipitation is typically accumulated. In Kaduwela, during the entire year, the rain falls for 289.4 days and collects up to 2262mm (89.06") of precipitation.

Daylight

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

Sunshine

The average sunshine in May is 8.6h.

UV index

May, June, August and October, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 6 during May translates into the following guidance:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.