May weather forecast
Bandarawatta, Sri Lanka

May, the last month of the spring in Bandarawatta, is another hot month, with an average temperature varying between 26.4°C (79.5°F) and 30.8°C (87.4°F).

Temperature

May's advent denotes a minor fluctuation in the average high-temperature to a still hot 30.8°C (87.4°F) from April's 32°C (89.6°F). In the month of May, Bandarawatta experiences a minor discrepancy from peak daytime temperatures, settling at an average low-temperature of 26.4°C (79.5°F).

Heat index

In May, the average heat index is computed to be a scorching 40°C (104°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. 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 of high significance for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In Bandarawatta, the average relative humidity in May is 80%.

Rainfall

In Bandarawatta, during May, the rain falls for 26.3 days and regularly aggregates up to 204mm (8.03") of precipitation. In Bandarawatta, during the entire year, the rain falls for 265.8 days and collects up to 1783mm (70.2") of precipitation.

Daylight

The average length of the day in May is 12h and 27min.
On the first day of May in Bandarawatta, Sri Lanka, 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 in Bandarawatta is 8.8h.

UV index

The months with the lowest UV index in Bandarawatta are May, June, August and October, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 6 during May leads to these instructions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.