May weather forecast
Dikwella, Sri Lanka

The last month of the spring, May, is another hot month in Dikwella, Sri Lanka, with an average temperature ranging between max 30.3°C (86.5°F) and min 26.3°C (79.3°F).

Temperature

Dikwella, Sri Lanka, ushers in May with an average high-temperature of a still hot 30.3°C (86.5°F), showing a close resemblance to the previous month. During the nights of May, Dikwella records an average low-temperature of 26.3°C (79.3°F), reflecting a modest decrease from daytime highs.

Heat index

For May, the heat index is evaluated at a very hot 39°C (102.2°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

The months with the highest humidity are May, September and November, with an average relative humidity of 81%.

Rainfall

In Dikwella, during May, the rain falls for 15.6 days and regularly aggregates up to 54mm (2.13") of precipitation. Throughout the year, in Dikwella, there are 180 rainfall days, and 509mm (20.04") of precipitation is accumulated.

Daylight

The average length of the day in May in Dikwella is 12h and 23min.
On the first day of the month, sunrise is at 05:54 and sunset at 18:14. On the last day of May, in Dikwella, sunrise is at 05:51 and sunset at 18:18 +0530.

Sunshine

In May, the average sunshine is 9.3h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Dikwella, Sri Lanka, are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.
Note: In May, the maximum UV index of 7 transforms into these recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. 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. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.