September weather forecastWalayar, India
September
Weather in September
September, the last month of the rainy (monsoon) season in Walayar, is also a moderately hot month, with an average temperature ranging between max 29.5°C (85.1°F) and min 20.8°C (69.4°F).Temperature
The advent of September brings an average high-temperature of a still warm 29.5°C (85.1°F), exhibiting minor difference from the previous month. An average low-temperature of 20.8°C (69.4°F) is recorded during the nights in September.Heat index
The heat index value during September is calculated to be a sweltering 37°C (98.6°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.
Humidity
The average relative humidity in September is 82%.Rainfall
In Walayar, during September, the rain falls for 24.8 days and regularly aggregates up to 133mm (5.24") of precipitation. Throughout the year, there are 238.3 rainfall days, and 1218mm (47.95") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 11min.On the first day of September, sunrise is at 6:12 am and sunset at 6:32 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 6:13 pm IST.
Sunshine
In September, the average sunshine is 7.9h.UV index
The months with the lowest UV index are January, June through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 6 during September translates into these guidelines:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Walayar, India
- Average high temperature in September: 29.5°C
The warmest month (with the highest average high temperature) is April (35.8°C).
The month with the lowest average high temperature is July (28.3°C).
- Average low temperature in September: 20.8°C
The month with the highest average low temperature is May (23.5°C).
The coldest month (with the lowest average low temperature) is January (18.3°C).
Average pressure in September
Walayar, India
- Average pressure in September: 1009.7mbar
The month with the highest atmospheric pressure is January (1012.9mbar).
The month with the lowest atmospheric pressure is May (1008.5mbar).
Average wind speed in September
Walayar, India
- Average wind speed in September: 8km/h
The windiest month (with the highest average wind speed) is July (10.5km/h).
The calmest month (with the lowest average wind speed) is April (5.2km/h).
Average humidity in September
Walayar, India
- Average humidity in September: 82%
The month with the highest relative humidity is August (84%).
The month with the lowest relative humidity is February (56%).
Average rainfall in September
Walayar, India
- Average rainfall in September: 133mm
The wettest month (with the highest rainfall) is August (204mm).
The driest month (with the least rainfall) is January (5mm).
Average rainfall days in September
Walayar, India
- Average rainfall days in September: 24.8 days
The month with the highest number of rainy days is August (30 days).
The months with the least rainy days are January and February (3.4 days).
Average daylight in September /
Average sunshine in September
Walayar, India
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in September: 7h and 54min
The month with the most sunshine is February (Average sunshine: 9h and 54min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).
Average sunshine days in September
Walayar, India
- Average sunshine days in September: 3.2 days
The month with the most sunshine days is January (26.6 days).
The month with the least sunshine days is August (0.4 days).
Average UV index in September
Walayar, India
- Average UV index in September: 6
The months with the highest UV index are February, March, April and May (UV index 7).
The months with the lowest UV index are January, June, July, August, September, October, November and December (UV index 6).
Average cloud cover in September
Walayar, India
- Average cloud cover in September: 46
The months with the most cloud cover are July and August (Cloud cover 53).
The month with the least cloud cover is February (Cloud cover 11).
Average visibility in September
Walayar, India
- Average visibility in September: 8km
The months with the highest visibility are January and February (10km).
The months with the lowest visibility are August, September, October and November (8km).





