November weather forecast
Kelaniya, Sri Lanka

The last month of the autumn, November, is another tropical month in Kelaniya, Sri Lanka, with temperature in the range of an average low of 24.5°C (76.1°F) and an average high of 30.1°C (86.2°F).

Temperature

The onset of November marks an average high-temperature of a still hot 30.1°C (86.2°F), hardly differing from October's 30°C (86°F). Throughout November, the temperature in Kelaniya falls to an average low of 24.5°C (76.1°F).

Heat index

In November, the heat index is calculated to be a sweltering 38°C (100.4°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

In November, the average relative humidity is 79%.

Rainfall

In Kelaniya, in November, it is raining for 25.7 days, with typically 191mm (7.52") of accumulated precipitation. Throughout the year, there are 289.4 rainfall days, and 2262mm (89.06") of precipitation is accumulated.

Daylight

In November, the average length of the day is 11h and 49min.
On the first day of the month, sunrise is at 05:57 and sunset at 17:50. On the last day of November, in Kelaniya, sunrise is at 06:06 and sunset at 17:51 +0530.

Sunshine

The month with the least sunshine in Kelaniya, Sri Lanka, is November, with an average of 6.7h of sunshine.

UV index

January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In November, an average UV index of 7 transforms into the following instructions:
Resist extreme sun exposure. Guarding against solar damage is essential. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.