October weather forecast
Kollupitiya, Sri Lanka

October is a hot autumn month in Kollupitiya, Sri Lanka, with temperature in the range of an average high of 30°C (86°F) and an average low of 25°C (77°F).

Temperature

The introduction of October sees an average high-temperature of a tropical 30°C (86°F), hardly deviating from September. Kollupitiya's October nights observe a minor shift from the daytime temperatures, resulting in an average dip to a moderately hot 25°C (77°F).

Heat index

October's heat index is evaluated at a very hot 38°C (100.4°F). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In Kollupitiya, the average relative humidity in October is 80%.

Rainfall

In Kollupitiya, during October, the rain falls for 27 days and regularly aggregates up to 237mm (9.33") of precipitation. Throughout the year, there are 289.4 rainfall days, and 2262mm (89.06") of precipitation is accumulated.

Daylight

In Kollupitiya, the average length of the day in October is 11h and 58min.
On the first day of the month, sunrise is at 05:58 and sunset at 18:01. On the last day of October, in Kollupitiya, sunrise is at 05:57 and sunset at 17:50 +0530.

Sunshine

The average sunshine in October is 7.7h.

UV index

The months with the lowest UV index in Kollupitiya are May, June, August and October, 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 the ordinary person.
Note: A maximum daily UV index of 6 during October morphs into the following directions:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.