May weather forecast
Yakkaduwa, Sri Lanka

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

Temperature

The average high-temperature during May registers at a still hot 30.8°C (87.4°F), closely corresponding to the preceding month. In Yakkaduwa, the nighttime temperature in May descends gently to an average of 26.4°C (79.5°F).

Heat index

The heat index value during May is evaluated at a blistering 40°C (104°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of 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 highly important for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

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

Rainfall

In Yakkaduwa, in May, during 26.3 rainfall days, 204mm (8.03") of precipitation is typically accumulated. In Yakkaduwa, during the entire year, the rain falls for 265.4 days and collects up to 1744mm (68.66") of precipitation.

Daylight

In May, the average length of the day in Yakkaduwa is 12h and 27min.
On the first day of the month, sunrise is at 05:56 and sunset at 18:18. On the last day of May, sunrise is at 05:52 and sunset at 18:23 +0530.

Sunshine

In Yakkaduwa, the average sunshine in May is 8.8h.

UV index

The months with the lowest UV index in Yakkaduwa 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: In May, the UV index of 6 transforms into the following advice:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.