October weather forecast
Rathkarawwa, Sri Lanka

October, the same as September, in Rathkarawwa, Sri Lanka, is another tropical autumn month, with an average temperature ranging between max 30°C (86°F) and min 25.9°C (78.6°F).

Temperature

Rathkarawwa notes an average high-temperature of a still hot 30°C (86°F) in October, hardly diverging from September. Rathkarawwa sustains a near constant temperature throughout October, with nighttime averages of 25.9°C (78.6°F).

Heat index

October's average heat index is calculated to be a very hot 37°C (98.6°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In October, the average relative humidity is 77%.

Rainfall

In Rathkarawwa, during October, the rain falls for 22.5 days and regularly aggregates up to 180mm (7.09") of precipitation. Throughout the year, there are 192.9 rainfall days, and 942mm (37.09") of precipitation is accumulated.

Daylight

In October, the average length of the day is 11h and 58min.
On the first day of the month, sunrise is at 05:54 and sunset at 17:57. On the last day of October, sunrise is at 05:53 and sunset at 17:46 +0530.

Sunshine

In Rathkarawwa, the average sunshine in October is 8.5h.

UV index

The month with the lowest UV index is October, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: In October, the maximum UV index of 6 transforms into these recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.