September weather forecast
Dewalapola, Sri Lanka

September, the first month of the autumn in Dewalapola, is also a moderately hot month, with temperature in the range of an average low of 25.2°C (77.4°F) and an average high of 29.5°C (85.1°F).

Temperature

Dewalapola's September average high-temperature settles at a still warm 29.5°C (85.1°F), showing a near match with the preceding month. Throughout September, Dewalapola reports a steady low-temperature average of 25.2°C (77.4°F), slightly lower than its daytime counterpart.

Heat index

In September, the heat index is estimated at a fiery hot 36°C (96.8°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a metric representing the sensation of warmth when air temperature and moisture come together. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

In Dewalapola, the average relative humidity in September is 81%.

Rainfall

In Dewalapola, in September, during 24.4 rainfall days, 153mm (6.02") of precipitation is typically accumulated. Throughout the year, there are 265.4 rainfall days, and 1744mm (68.66") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 10min.
On the first day of the month, sunrise is at 06:02 and sunset at 18:17. On the last day of September, in Dewalapola, sunrise is at 05:58 and sunset at 18:01 +0530.

Sunshine

In Dewalapola, Sri Lanka, the average sunshine in September is 7.7h.

UV index

The months with the highest UV index in Dewalapola are January through April, July, September, November and December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index of 7 during September translates into these guidelines:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Stay sun-safe with clothing that is both closely woven and worn loosely.