Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September's arrival yields an average high-temperature of a still warm 27.1°C, mirroring that of August. Throughout September, Nuwara Eliya witnesses a consistent average low-temperature of 18.7°C.Heat index
The heat index value during September is computed to be a hot 30°C. Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.Be advised, the heat index considers values for conditions in shade and with a light breeze. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Humidity
The average relative humidity in September is 82%.Rainfall
In Nuwara Eliya, Sri Lanka, in September, during 25.5 rainfall days, 182mm of precipitation is typically accumulated. Throughout the year, there are 297.4 rainfall days, and 2784mm of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 10min.On the first day of September, sunrise is at 05:59 and sunset at 18:14. On the last day of the month, sunrise is at 05:54 and sunset at 17:59 +0530.
Sunshine
In Nuwara Eliya, the average sunshine in September is 9.5h.UV index
February through September, with an average maximum UV index of 6, are months with the highest UV index. 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: In September, a daily maximum UV index of 6 leads to the following instructions:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
FAQ
What are the temperatures in Nuwara Eliya in September?
What is the average humidity in September in Nuwara Eliya?
How many days does it rain in September in Nuwara Eliya?
What is the average length of the day in September in Nuwara Eliya?
When are sunrise and sunset in September in Nuwara Eliya?
How many hours of sunshine does Nuwara Eliya have in September?
What is the month with the highest UV index in Nuwara Eliya?
How high is the UV index in September in Nuwara Eliya?
Average temperature in September
Nuwara Eliya, 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
Nuwara Eliya, 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
Nuwara Eliya, 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
Nuwara Eliya, 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
Nuwara Eliya, 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
Nuwara Eliya, 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
Nuwara Eliya, Sri Lanka
- Average daylight in September: 12h and 1min
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 3min
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
Nuwara Eliya, 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
Nuwara Eliya, 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
Nuwara Eliya, 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
Nuwara Eliya, 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).
Nuwara Eliya, Sri Lanka
Weather forecast for your location
2. Allow the app to use your location
