May weather forecast
Seeduwa, Sri Lanka

The last month of the spring, May, is another hot month in Seeduwa, Sri Lanka, with an average temperature ranging between max 30.8°C (87.4°F) and min 26.4°C (79.5°F).

Temperature

The shift to May signals an average high-temperature of a still hot 30.8°C (87.4°F), subtly varied from April's 32°C (89.6°F). During May, Seeduwa's nights hold steady with an average temperature of 26.4°C (79.5°F), barely dropping from the daytime highs.

Heat index

May's heat index is evaluated at an extremely hot 40°C (104°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Consider that heat index readings are for situations in the shade and light wind. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The average relative humidity in May in Seeduwa is 80%.

Rainfall

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

Daylight

In Seeduwa, Sri Lanka, the average length of the day in May 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, in Seeduwa, sunrise is at 05:52 and sunset at 18:23 +0530.

Sunshine

The average sunshine in May in Seeduwa is 8.8h.

UV index

The months with the lowest UV index in Seeduwa are May, June, August and October, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, the UV index of 6 transforms into the following advice:
Deter overexposure. Protecting against the sun's effects is essential. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.