May weather forecast
Valaichchenai, Sri Lanka

The last month of the spring, May, is another hot month in Valaichchenai, Sri Lanka, with an average temperature varying between 26.6°C (79.9°F) and 32.7°C (90.9°F).

Temperature

Valaichchenai marks the arrival of May with an average high-temperature of a still tropical 32.7°C (90.9°F), hardly different from April's 31.8°C (89.2°F). Valaichchenai, in May, experiences an average temperature of 26.6°C (79.9°F) at night.

Heat index

For May, the heat index is estimated at a blistering 44°C (111.2°F). Be wary: Heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'real feel', represents the fusion of temperature and moisture in the air to suggest how warm it feels. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. 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 especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The average relative humidity in May is 74%.

Rainfall

In May, the rain falls for 20.7 days. Throughout May, 79mm (3.11") of precipitation is accumulated. Throughout the year, there are 237.8 rainfall days, and 1259mm (49.57") of precipitation is accumulated.

Daylight

In Valaichchenai, the average length of the day in May is 12h and 29min.
On the first day of the month, sunrise is at 05:48 and sunset at 18:13. On the last day of May, in Valaichchenai, sunrise is at 05:45 and sunset at 18:18 +0530.

Sunshine

In May, the average sunshine in Valaichchenai, Sri Lanka, is 11.6h.

UV index

The months with the highest UV index are January through October, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 7 in May converts into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.