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
September
Weather in September
Temperature
September proves to be the warmest month, recording an average peak temperature of 30.7°C (87.3°F) and a minimum temperature of 19.6°C (67.3°F).Heat index
Throughout September, the heat index is computed to be a blisteringly hot 40°C (104°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.Heat index evaluations are typically in the context of light winds and shaded environments. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for 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.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.
Humidity
The months with the lowest humidity are July through September, with an average relative humidity of 81%.Rainfall
The month with the least rainfall in Long Seniai is September, when the rain falls for 26 days and typically collects 107mm (4.21") of precipitation.Daylight
The average length of the day in September in Long Seniai is 12h and 8min.On the first day of the month, sunrise is at 6:14 am and sunset at 6:25 pm. On the last day of September, sunrise is at 6:07 am and sunset at 6:12 pm +08.
Sunshine
In Long Seniai, the average sunshine in September is 7.9h.UV index
The months with the highest UV index are January, March through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a regular UV index of 6 translates into these guidelines:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the hottest in Long Seniai?
How hot is it in Long Seniai in September?
What are the least humid months in Long Seniai?
What is the average humidity in September in Long Seniai?
What is the driest month in Long Seniai?
How much does it rain in Long Seniai in September?
What is the average length of the day in September in Long Seniai?
When is the sunrise / sunset in September in Long Seniai?
How long on average sun shines in September in Long Seniai?
What is the month with the highest UV index in Long Seniai?
What is the UV index reading in September in Long Seniai?
Average temperature in September
Long Seniai, Malaysia
- Average high temperature in September: 30.7°C
The warmest month (with the highest average high temperature) is September (30.7°C).
The month with the lowest average high temperature is January (28.7°C).
- Average low temperature in September: 19.6°C
The month with the highest average low temperature is May (20.1°C).
The coldest month (with the lowest average low temperature) is July (19.1°C).
Average pressure in September
Long Seniai, Malaysia
- Average pressure in September: 1010.7mbar
The month with the highest atmospheric pressure is March (1011mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).
Average wind speed in September
Long Seniai, Malaysia
- Average wind speed in September: 3.4km/h
The windiest months (with the highest average wind speed) are July, August, September and October (3.4km/h).
The calmest month (with the lowest average wind speed) is November (3.1km/h).
Average humidity in September
Long Seniai, Malaysia
- Average humidity in September: 81%
The months with the highest relative humidity are January, November and December (87%).
The months with the lowest relative humidity are July, August and September (81%).
Average rainfall in September
Long Seniai, Malaysia
- Average rainfall in September: 107mm
The wettest month (with the highest rainfall) is April (296mm).
The driest month (with the least rainfall) is September (107mm).
Average rainfall days in September
Long Seniai, Malaysia
- Average rainfall days in September: 26 days
The month with the highest number of rainy days is December (30 days).
The month with the least rainy days is June (23.8 days).
Average daylight in September /
Average sunshine in September
Long Seniai, Malaysia
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is August (Average sunshine: 8h and 0min).
The month with the least sunshine is November (Average sunshine: 6h and 24min).
Average sunshine days in September
Long Seniai, Malaysia
- Average sunshine days in September: 3.5 days
The month with the most sunshine days is June (4.5 days).
The month with the least sunshine days is November (0.6 days).
Average UV index in September
Long Seniai, Malaysia
- Average UV index in September: 6
The months with the highest UV index are January, March, April, May, June, July, August, September, October, November and December (UV index 6).
The month with the lowest UV index is February (UV index 5).
Average cloud cover in September
Long Seniai, Malaysia
- Average cloud cover in September: 50
The months with the most cloud cover are January and November (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 48).
Average visibility in September
Long Seniai, Malaysia
- Average visibility in September: 7km
The months with the highest visibility are May, June, July, August, September and October (7km).
The months with the lowest visibility are January, February, March, April, November and December (6km).
