November weather forecast
Vankalai, Sri Lanka

The last month of the autumn, November, is another warm month in Vankalai, Sri Lanka, with temperature in the range of an average high of 29.1°C (84.4°F) and an average low of 25.7°C (78.3°F).

Temperature

The shift to November signals an average high-temperature of a moderately hot 29.1°C (84.4°F), subtly varied from October's 30°C (86°F). In Vankalai, the month of November brings a consistent average low-temperature of 25.7°C (78.3°F), slightly cooler than its daytime highs.

Heat index

The heat index value during November is calculated to be a fiery hot 35°C (95°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a metric representing the sensation of warmth when air temperature and moisture come together. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

The months with the highest humidity are November and December, with an average relative humidity of 79%.

Rainfall

November is the month with the most rainfall in Vankalai. Rain falls for 23.8 days and accumulates 207mm (8.15") of precipitation.

Daylight

The average length of the day in November is 11h and 43min.
On the first day of November, sunrise is at 05:59 and sunset at 17:48. On the last day of the month, sunrise is at 06:09 and sunset at 17:48 +0530.

Sunshine

November and December, with an average of 5.7h of sunshine, are months with the least sunshine in Vankalai.

UV index

November is the month with the lowest UV index, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 6 in November leads to these recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.