September weather forecast
Kiran, Sri Lanka

The first month of the autumn, September, is also a hot month in Kiran, Sri Lanka, with an average temperature ranging between min 25.7°C (78.3°F) and max 31.8°C (89.2°F).

Temperature

Kiran greets September with an average high-temperature of a still hot 31.8°C (89.2°F), marking a slight deviation from the preceding month. In the month of September, Kiran's average low-temperature falls to a moderately hot 25.7°C (78.3°F).

Heat index

Throughout September, the heat index is calculated to be a blistering 41°C (105.8°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

In September, the average relative humidity is 72%.

Rainfall

In Kiran, Sri Lanka, during September, the rain falls for 22 days and regularly aggregates up to 81mm (3.19") of precipitation. In Kiran, during the entire year, the rain falls for 237.8 days and collects up to 1259mm (49.57") of precipitation.

Daylight

The average length of the day in September in Kiran, Sri Lanka, is 12h and 10min.
On the first day of the month, sunrise is at 05:55 and sunset at 18:11. On the last day of September, in Kiran, Sri Lanka, sunrise is at 05:52 and sunset at 17:55 +0530.

Sunshine

The average sunshine in September is 10.7h.

UV index

The months with the highest UV index in Kiran are January through October, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 7 in September converts into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.