September weather forecastVân Trì, Vietnam
September
Weather in September
September, the first month of the autumn in Vân Trì, is still a hot month, with an average temperature varying between 24.2°C (75.6°F) and 31.7°C (89.1°F).Temperature
The average high-temperature for September is a still tropical 31.7°C (89.1°F), closely aligning with the temperature of the preceding month. The low-temperature averages to a warm 24.2°C (75.6°F) during the nights of September.Heat index
In September, the heat index is calculated to be a scorching 43°C (109.4°F). Note: Heat exhaustion and heat cramps are probable. Heatstroke can follow with prolonged activity.Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', 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. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
The months with the highest humidity are August and September, with an average relative humidity of 80%.Rainfall
In Vân Trì, in September, during 18.5 rainfall days, 73mm (2.87") of precipitation is typically accumulated. In Vân Trì, during the entire year, the rain falls for 181.2 days and collects up to 595mm (23.43") of precipitation.Daylight
In September, the average length of the day is 12h and 16min.On the first day of September, sunrise is at 05:40 and sunset at 18:13. On the last day of the month, sunrise is at 05:47 and sunset at 17:45 +07.
Sunshine
In Vân Trì, the average sunshine in September is 8.5h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.Note: A maximum 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 UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Vân Trì, 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
Vân Trì, 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
Vân Trì, 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
Vân Trì, 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
Vân Trì, 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
Vân Trì, 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
Vân Trì, 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
Vân Trì, 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
Vân Trì, 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
Vân Trì, 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
Vân Trì, 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).
