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
The start of September marks an average high-temperature of a still tropical 31.3°C (88.3°F), hardly distinguishable from the conditions in August. An average low-temperature of 25°C (77°F) is observed during the September nights.Heat index
The heat index value during September is evaluated at a blisteringly hot 42°C (107.6°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.Heat index guidelines indicate values are for light wind scenarios and shaded regions. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.
Humidity
In Thới Lai, the average relative humidity in September is 80%.Rainfall
In Thới Lai, in September, it is raining for 16 days, with typically 37mm (1.46") of accumulated precipitation. Throughout the year, there are 165.5 rainfall days, and 394mm (15.51") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 11min.On the first day of the month, sunrise is at 05:48 and sunset at 18:06. On the last day of September, sunrise is at 05:46 and sunset at 17:49 +07.
Sunshine
In September, the average sunshine is 7.6h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.Note: A maximum high UV index of 7 in September translates into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How many days does it rain in September in Thới Lai?
How many hours of daylight does Thới Lai have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
When is the highest UV index?
When is the lowest UV index?
What is the UV index reading in September?
Average temperature in September
Thới Lai, Vietnam
- Average high temperature in September: 31.3°C
The warmest month (with the highest average high temperature) is April (35.2°C).
The month with the lowest average high temperature is December (30.7°C).
- Average low temperature in September: 25°C
The month with the highest average low temperature is May (26.7°C).
The coldest month (with the lowest average low temperature) is January (22.1°C).
Average pressure in September
Thới Lai, Vietnam
- Average pressure in September: 1008.5mbar
The month with the highest atmospheric pressure is January (1011.5mbar).
The months with the lowest atmospheric pressure are June and July (1007.8mbar).
Average wind speed in September
Thới Lai, Vietnam
- Average wind speed in September: 12.1km/h
The windiest month (with the highest average wind speed) is February (13.7km/h).
The calmest month (with the lowest average wind speed) is October (9.3km/h).
Average humidity in September
Thới Lai, Vietnam
- Average humidity in September: 80%
The month with the highest relative humidity is October (81%).
The month with the lowest relative humidity is March (65%).
Average rainfall in September
Thới Lai, Vietnam
- Average rainfall in September: 37mm
The wettest month (with the highest rainfall) is October (64mm).
The driest month (with the least rainfall) is February (4mm).
Average rainfall days in September
Thới Lai, Vietnam
- Average rainfall days in September: 16 days
The month with the highest number of rainy days is October (19.6 days).
The month with the least rainy days is February (4 days).
Average daylight in September /
Average sunshine in September
Thới Lai, Vietnam
- Average daylight in September: 12h and 1min
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 4min
The month with the most sunshine is April (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in September
Thới Lai, Vietnam
- Average sunshine days in September: 11.3 days
The month with the most sunshine days is February (22.6 days).
The month with the least sunshine days is October (8.7 days).
Average UV index in September
Thới Lai, Vietnam
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Thới Lai, Vietnam
- Average cloud cover in September: 48
The month with the most cloud cover is September (Cloud cover 48).
The month with the least cloud cover is February (Cloud cover 25).
Average visibility in September
Thới Lai, Vietnam
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, August and December (10km).
The months with the lowest visibility are June, July, September, October and November (9km).
