May weather forecast
Ragama, Sri Lanka

May, the last month of the spring in Ragama, is another hot month, with temperature in the range of an average high of 30.6°C (87.1°F) and an average low of 26.3°C (79.3°F).

Temperature

Ragama in May witnesses an average high-temperature of a still hot 30.6°C (87.1°F), indicating a slight variation from April's 31.8°C (89.2°F). A minimal decline in temperature from daytime highs is anticipated in Ragama throughout the May nights, averaging a warm 26.3°C (79.3°F).

Heat index

For May, the heat index is appraised at a blisteringly hot 40°C (104°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Observations indicate that the heat index values are for shady locations with 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', gives a temperature feeling by integrating air temperature and humidity. 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. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In May, the average relative humidity is 81%.

Rainfall

In May, in Ragama, Sri Lanka, the rain falls for 28.8 days. Throughout May, 306mm (12.05") of precipitation is accumulated. In Ragama, Sri Lanka, during the entire year, the rain falls for 289.4 days and collects up to 2262mm (89.06") of precipitation.

Daylight

In Ragama, Sri Lanka, the average length of the day in May is 12h and 26min.
On the first day of May in Ragama, Sri Lanka, sunrise is at 05:56 and sunset at 18:18. On the last day of the month, sunrise is at 05:52 and sunset at 18:23 +0530.

Sunshine

The average sunshine in May in Ragama is 8.6h.

UV index

May, June, August and October, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: In May, the average maximum UV index of 6 translates into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 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. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.