September weather forecastSarikkamulla, Sri Lanka
September
Weather in September
The first month of the autumn, September, is still a warm month in Sarikkamulla, Sri Lanka, with an average temperature ranging between min 25.2°C (77.4°F) and max 28.8°C (83.8°F).Temperature
September's beginning signals an average high-temperature of a still moderately hot 28.8°C (83.8°F), barely different from August's 28.6°C (83.5°F). In Sarikkamulla, the nighttime temperature shows a slight difference from the daytime high, averaging to a still warm 25.2°C (77.4°F) during September.Heat index
For most parts of September, the heat index is appraised at a fiery hot 35°C (95°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.For clarity, heat index numbers account for light winds and areas under shade. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.
Humidity
The average relative humidity in September is 82%.Rainfall
In Sarikkamulla, in September, during 26.3 rainfall days, 201mm (7.91") of precipitation is typically accumulated. Throughout the year, in Sarikkamulla, there are 273.8 rainfall days, and 2059mm (81.06") 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 06:03 and sunset at 18:17. On the last day of September, sunrise is at 05:58 and sunset at 18:02 +0530.
Sunshine
In September, the average sunshine is 7.6h.UV index
January through April, July, September through December, with an average maximum UV index of 7, are months with the highest UV index in Sarikkamulla. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 7 transforms into these recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sarikkamulla, Sri Lanka
- Average high temperature in September: 28.8°C
The warmest months (with the highest average high temperature) are March and April (31.3°C).
The month with the lowest average high temperature is August (28.6°C).
- Average low temperature in September: 25.2°C
The month with the highest average low temperature is May (26.3°C).
The coldest month (with the lowest average low temperature) is January (23.4°C).
Average pressure in September
Sarikkamulla, Sri Lanka
- Average pressure in September: 1009.9mbar
The month with the highest atmospheric pressure is January (1011.6mbar).
The month with the lowest atmospheric pressure is May (1008.7mbar).
Average wind speed in September
Sarikkamulla, Sri Lanka
- Average wind speed in September: 13.6km/h
The windiest month (with the highest average wind speed) is June (15.9km/h).
The calmest month (with the lowest average wind speed) is March (7.9km/h).
Average humidity in September
Sarikkamulla, Sri Lanka
- Average humidity in September: 82%
The months with the highest relative humidity are June, July and August (83%).
The months with the lowest relative humidity are January and February (75%).
Average rainfall in September
Sarikkamulla, Sri Lanka
- Average rainfall in September: 201mm
The wettest month (with the highest rainfall) is June (350mm).
The driest month (with the least rainfall) is January (25mm).
Average rainfall days in September
Sarikkamulla, Sri Lanka
- Average rainfall days in September: 26.3 days
The months with the highest number of rainy days are July and August (29.5 days).
The month with the least rainy days is January (8.9 days).
Average daylight in September /
Average sunshine in September
Sarikkamulla, 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: 7h and 36min
The month with the most sunshine is January (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 48min).
Average sunshine days in September
Sarikkamulla, Sri Lanka
- Average sunshine days in September: 1.4 days
The month with the most sunshine days is January (21 days).
The months with the least sunshine days are June and July (0.3 days).
Average UV index in September
Sarikkamulla, Sri Lanka
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, July, September, October, November and December (UV index 7).
The months with the lowest UV index are May, June and August (UV index 6).
Average cloud cover in September
Sarikkamulla, Sri Lanka
- Average cloud cover in September: 54
The month with the most cloud cover is June (Cloud cover 55).
The month with the least cloud cover is January (Cloud cover 24).
Average visibility in September
Sarikkamulla, Sri Lanka
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, November and December (10km).
The months with the lowest visibility are May, June, July, August, September and October (9km).
