May weather forecast
Vannivilankulam, Sri Lanka

May, the last month of the spring in Vannivilankulam, is another hot month, with an average temperature ranging between min 28.1°C (82.6°F) and max 31.2°C (88.2°F).

Temperature

Vannivilankulam's weather in May displays an average high-temperature of a still hot 31.2°C (88.2°F), showing minor disparity from April's 31.4°C (88.5°F). In the month of May, Vannivilankulam experiences a minor discrepancy from peak daytime temperatures, settling at an average low-temperature of 28.1°C (82.6°F).

Heat index

In May, the heat index is estimated at an extremely hot 40°C (104°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

In Vannivilankulam, the average relative humidity in May is 77%.

Rainfall

In May, the rain falls for 13.2 days. Throughout May, 51mm (2.01") of precipitation is accumulated. Throughout the year, there are 181.2 rainfall days, and 849mm (33.43") of precipitation is accumulated.

Daylight

In May, the average length of the day is 12h and 32min.
On the first day of May, sunrise is at 05:51 and sunset at 18:19. On the last day of the month, sunrise is at 05:47 and sunset at 18:24 +0530.

Sunshine

In Vannivilankulam, the average sunshine in May is 11.2h.

UV index

The months with the highest UV index are January through October and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In May, a regular UV index of 7 translates into these guidelines:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.