September weather forecast
Chung Thuy, Vietnam

September

Weather in September

September, the first month of the autumn in Chung Thuy, is still a hot month, with an average temperature fluctuating between 31.7°C (89.1°F) and 24.2°C (75.6°F).

Temperature

The advent of September sees the average high-temperature at a still hot 31.7°C (89.1°F), subtly shifted from August's 33.1°C (91.6°F). September sees the temperature falling to a mean low of 24.2°C (75.6°F).

Heat index

The heat index for September is evaluated at a blisteringly hot 43°C (109.4°F). Attention: Heat exhaustion and heat cramps are quite likely. Heatstroke becomes a risk with continued exertion.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', takes into account both air temperature and humidity to illustrate what people actually feel. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

August and September, with an average relative humidity of 80%, are the most humid months.

Rainfall

In Chung Thuy, in September, it is raining for 18.5 days, with typically 73mm (2.87") of accumulated precipitation. Throughout the year, 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 05:40 and sunset at 18:13. On the last day of the month, sunrise is at 05:48 and sunset at 17:46 +07.

Sunshine

In September, the average sunshine 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 of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 7 during September translates into the following directions:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.

Frequently asked questions

Is it hot during September?
In September, the average high-temperature and low-temperature are 31.7°C (89.1°F) and 24.2°C (75.6°F) respectively. In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is evaluated at 43°C (109.4°F).
What is the most humid month?
August and September, with an average relative humidity of 80%, are most humid months.
What is the average humidity in September?
In Chung Thuy, the average relative humidity in September is 80%.
How many days does it rain in September?
In Chung Thuy, during September, the rain falls for 18.5 days and regularly aggregates up to 73mm (2.87") of precipitation.
What is the average length of the day in September?
In Chung Thuy, the average day length in September is 12h and 16min.
When is the sunrise / sunset in September?
In September, on the first day of the month, sunrise is at 05:40 and sunset at 18:13. On the last day of the month, sunrise is at 05:48 and sunset at 17:46 +07.
How many hours of sunshine does Chung Thuy have in September?
The average sunshine duration in September is 8.5h.
When is the highest UV index?
The months with the highest UV index are May through September, with an average maximum UV index of 7.
What is the UV index reading in September?
In September, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Chung Thuy, 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
Chung Thuy, 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
Chung Thuy, 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
Chung Thuy, 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
Chung Thuy, 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
Chung Thuy, 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
Chung Thuy, Vietnam
  • Average daylight in September: 12h and 2min

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 3min

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
Chung Thuy, 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
Chung Thuy, 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
Chung Thuy, 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
Chung Thuy, 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).

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