September weather forecastLệ Chi, Vietnam
September
Weather in September
September, the first month of the autumn in Lệ Chi, is also a hot month, with temperature in the range of an average high of 31.7°C (89.1°F) and an average low of 24.2°C (75.6°F).Temperature
The arrival of September brings an average high-temperature of a still hot 31.7°C (89.1°F), subtly diverging from August's 33.1°C (91.6°F). During September, Lệ Chi consistently records a temperature low averaging a warm 24.2°C (75.6°F).Heat index
The heat index value during September is calculated to be a blistering 43°C (109.4°F). Precaution: Heat cramps along with heat exhaustion are possible. Heatstroke is a serious risk with continued exertion.Research indicates the heat index considers values in shaded locales and with light winds. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', represents the fusion of temperature and moisture in the air to suggest how warm it feels. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
The months with the highest humidity are August and September, with an average relative humidity of 80%.Rainfall
In September, the rain falls for 18.5 days. Throughout September, 73mm (2.87") of precipitation is accumulated. Throughout the year, in Lệ Chi, there are 181.2 rainfall days, and 595mm (23.43") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 16min.On the first day of September, sunrise is at 05:39 and sunset at 18:12. On the last day of the month, sunrise is at 05:46 and sunset at 17:44 +07.
Sunshine
In Lệ Chi, the average sunshine in September is 8.5h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 7 in September translates into these instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lệ Chi, Vietnam
- Average high temperature in September: 31.7°C
The warmest month (with the highest average high temperature) is June (35.4°C).
The month with the lowest average high temperature is January (20.7°C).
- Average low temperature in September: 24.2°C
The month with the highest average low temperature is June (26.6°C).
The coldest month (with the lowest average low temperature) is January (14.4°C).
Average pressure in September
Lệ Chi, Vietnam
- Average pressure in September: 1008.5mbar
The month with the highest atmospheric pressure is January (1019.2mbar).
The month with the lowest atmospheric pressure is June (1003.1mbar).
Average wind speed in September
Lệ Chi, Vietnam
- Average wind speed in September: 6.9km/h
The windiest month (with the highest average wind speed) is March (9.9km/h).
The calmest months (with the lowest average wind speed) are August and September (6.9km/h).
Average humidity in September
Lệ Chi, Vietnam
- Average humidity in September: 80%
The months with the highest relative humidity are August and September (80%).
The month with the lowest relative humidity is December (69%).
Average rainfall in September
Lệ Chi, Vietnam
- Average rainfall in September: 73mm
The wettest month (with the highest rainfall) is August (135mm).
The driest month (with the least rainfall) is February (7mm).
Average rainfall days in September
Lệ Chi, Vietnam
- Average rainfall days in September: 18.5 days
The month with the highest number of rainy days is July (23.3 days).
The month with the least rainy days is February (7.8 days).
Average daylight in September /
Average sunshine in September
Lệ Chi, Vietnam
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Lệ Chi, Vietnam
- Average sunshine days in September: 9.5 days
The month with the most sunshine days is December (19.6 days).
The month with the least sunshine days is July (6.2 days).
Average UV index in September
Lệ Chi, Vietnam
- Average UV index in September: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in September
Lệ Chi, Vietnam
- Average cloud cover in September: 43
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is June (Cloud cover 40).
Average visibility in September
Lệ Chi, Vietnam
- Average visibility in September: 9km
The months with the highest visibility are February, March and June (10km).
The months with the lowest visibility are January, April, May, July, August, September, October, November and December (9km).
