September weather forecastBibile, Sri Lanka
September
Weather in September
September, the first month of the autumn in Bibile, is also a moderately hot month, with temperature in the range of an average high of 27.1°C (80.8°F) and an average low of 18.7°C (65.7°F).Temperature
Bibile's weather, upon September's arrival, documents an average high-temperature of a still warm 27.1°C (80.8°F), nearly the same as the prior month. Throughout the month of September, Bibile reports a steady low-temperature average of 18.7°C (65.7°F).Heat index
During September, the heat index is computed to be a hot 30°C (86°F). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.Be advised, the heat index considers values for conditions in shade and with a light breeze. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Humidity
In Bibile, the average relative humidity in September is 82%.Rainfall
In Bibile, in September, during 25.5 rainfall days, 182mm (7.17") of precipitation is typically accumulated. Throughout the year, there are 297.4 rainfall days, and 2784mm (109.61") of precipitation is accumulated.Daylight
In September, the average length of the day in Bibile, Sri Lanka, is 12h and 10min.On the first day of September in Bibile, sunrise is at 05:57 and sunset at 18:12. On the last day of the month, sunrise is at 05:53 and sunset at 17:56 +0530.
Sunshine
In September, the average sunshine in Bibile is 9.5h.UV index
The months with the highest UV index in Bibile are February through September, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum UV index, 6 during September, leads to the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bibile, Sri Lanka
- Average high temperature in September: 27.1°C
The warmest month (with the highest average high temperature) is April (27.6°C).
The month with the lowest average high temperature is December (24.3°C).
- Average low temperature in September: 18.7°C
The month with the highest average low temperature is May (19.1°C).
The coldest month (with the lowest average low temperature) is February (15.3°C).
Average pressure in September
Bibile, Sri Lanka
- Average pressure in September: 1009.5mbar
The month with the highest atmospheric pressure is January (1011.7mbar).
The month with the lowest atmospheric pressure is June (1008.3mbar).
Average wind speed in September
Bibile, Sri Lanka
- Average wind speed in September: 7.1km/h
The windiest month (with the highest average wind speed) is June (9.1km/h).
The calmest month (with the lowest average wind speed) is April (3.3km/h).
Average humidity in September
Bibile, Sri Lanka
- Average humidity in September: 82%
The month with the highest relative humidity is November (89%).
The month with the lowest relative humidity is March (80%).
Average rainfall in September
Bibile, Sri Lanka
- Average rainfall in September: 182mm
The wettest month (with the highest rainfall) is October (656mm).
The driest month (with the least rainfall) is January (85mm).
Average rainfall days in September
Bibile, Sri Lanka
- Average rainfall days in September: 25.5 days
The month with the highest number of rainy days is May (29.8 days).
The month with the least rainy days is February (16.3 days).
Average daylight in September /
Average sunshine in September
Bibile, Sri Lanka
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in September: 9h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in September
Bibile, Sri Lanka
- Average sunshine days in September: 2.2 days
The month with the most sunshine days is February (11 days).
The month with the least sunshine days is May (0.8 days).
Average UV index in September
Bibile, Sri Lanka
- Average UV index in September: 6
The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 6).
The months with the lowest UV index are January, October, November and December (UV index 5).
Average cloud cover in September
Bibile, Sri Lanka
- Average cloud cover in September: 44
The month with the most cloud cover is November (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 42).
Average visibility in September
Bibile, Sri Lanka
- Average visibility in September: 8km
The months with the highest visibility are June, July and August (9km).
The months with the lowest visibility are November and December (6km).
