May weather forecastNittambuwa, Sri Lanka

Weather in May

May, the last month of the spring in Nittambuwa, is another hot month, with temperature in the range of an average high of 30.8°C (87.4°F) and an average low of 26.4°C (79.5°F).

Temperature

Nittambuwa, Sri Lanka, signifies an average high-temperature of a still hot 30.8°C (87.4°F) in May, closely mirroring the 32°C (89.6°F) of April. Nittambuwa's May nights witness minimal differential from the daytime temperatures, with averages of 26.4°C (79.5°F).

Heat index

The average heat index in May is calculated to be a scorching 40°C (104°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital 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.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. 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. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In May, the average relative humidity is 80%.

Rainfall

In Nittambuwa, Sri Lanka, during May, the rain falls for 26.3 days and regularly aggregates up to 204mm (8.03") of precipitation. In Nittambuwa, 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 Nittambuwa is 12h and 27min.
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

The average sunshine in May in Nittambuwa is 8.8h.

UV index

May, June, August and October, with an average maximum UV index of 6, are months with the lowest UV index in Nittambuwa, Sri Lanka. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: A daily maximum UV index of 6 in May translates into the following instructions:
Guard against overexposure. Protection from sun-induced harm is essential. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.