September weather forecast
Củ Chi, Vietnam

September

Weather in September

September, the first month of the autumn in Củ Chi, is still a tropical month, with an average temperature fluctuating between 30.8°C (87.4°F) and 24.4°C (75.9°F).

Temperature

Củ Chi reaches its lowest average temperatures in September, measuring 30.8°C (87.4°F) at the peak and 24.4°C (75.9°F) at the lowest.

Heat index

For September, the heat index is evaluated at a blistering 41°C (105.8°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception 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 particularly relevant to babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting 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. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

September is the most humid month, with an average relative humidity of 83%.

Rainfall

In Củ Chi, Vietnam, in September, it is raining for 28.2 days, with typically 175mm (6.89") of accumulated precipitation. Throughout the year, there are 241.8 rainfall days, and 1283mm (50.51") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 11min.
On the first day of September, sunrise is at 05:44 and sunset at 18:03. On the last day of the month, sunrise is at 05:42 and sunset at 17:45 +07.

Sunshine

The average sunshine in September is 7.3h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: During September, 7 as the daily maximum UV index converts into the following advice:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.

Frequently asked questions

What part of the year is the coldest?
Củ Chi witnesses the coldest weather in September, with temperatures averaging a high of 30.8°C (87.4°F) and a low of 24.4°C (75.9°F).
How hot is September?
In Củ Chi, in September, the average high-temperature is 30.8°C (87.4°F), and the average low-temperature is 24.4°C (75.9°F). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is evaluated at 41°C (105.8°F).
What is the most humid month?
September is the most humid month, with an average relative humidity of 83%.
What is the average humidity in September?
In September, the average relative humidity is 83%.
How many days does it rain in September?
In Củ Chi, during September, the rain falls for 28.2 days and regularly aggregates up to 175mm (6.89") of precipitation.
How many hours of daylight does Củ Chi have in September?
In Củ Chi, the average day length in September is 12h and 11min.
When is the sunrise / sunset in September?
On the first day of September, sunrise is at 05:44 and sunset at 18:03. On the last day of the month, sunrise is at 05:42 and sunset at 17:45 +07.
How long on average sun shines in September?
In Củ Chi, the average sunshine duration in September is 7.3h.
What are the months with the highest UV index?
January through December, with an average maximum UV index of 7, are months with the highest UV index.
What are the months with the lowest UV index?
January through December, with an average maximum UV index of 7, are months with the lowest UV index.
What is the UV index reading in September?
In Củ Chi, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
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
Củ Chi, Vietnam
  • Average high temperature in September: 30.8°C

The warmest month (with the highest average high temperature) is March (35.4°C).
The month with the lowest average high temperature is September (30.8°C).

  • Average low temperature in September: 24.4°C

The month with the highest average low temperature is May (26.9°C).
The coldest month (with the lowest average low temperature) is January (22.9°C).

Average pressure in September
Củ Chi, Vietnam
  • Average pressure in September: 1008.4mbar

The month with the highest atmospheric pressure is January (1011.6mbar).
The month with the lowest atmospheric pressure is July (1007.6mbar).

Average wind speed in September
Củ Chi, Vietnam
  • Average wind speed in September: 8.9km/h

The windiest month (with the highest average wind speed) is March (11.5km/h).
The calmest month (with the lowest average wind speed) is October (6.7km/h).

Average humidity in September
Củ Chi, Vietnam
  • Average humidity in September: 83%

The month with the highest relative humidity is September (83%).
The months with the lowest relative humidity are February and March (61%).

Average rainfall in September
Củ Chi, Vietnam
  • Average rainfall in September: 175mm

The wettest month (with the highest rainfall) is June (188mm).
The driest month (with the least rainfall) is February (10mm).

Average rainfall days in September
Củ Chi, Vietnam
  • Average rainfall days in September: 28.2 days

The month with the highest number of rainy days is September (28.2 days).
The month with the least rainy days is February (5.1 days).

Average daylight in September /
Average sunshine in September
Củ Chi, Vietnam
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 30min).

  • Average sunshine in September: 7h and 2min

The month with the most sunshine is April (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 54min).

Average sunshine days in September
Củ Chi, Vietnam
  • Average sunshine days in September: 1.2 days

The month with the most sunshine days is February (22.3 days).
The month with the least sunshine days is September (1.2 days).

Average UV index in September
Củ Chi, 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
Củ Chi, Vietnam
  • Average cloud cover in September: 50

The months with the most cloud cover are July and September (Cloud cover 50).
The month with the least cloud cover is February (Cloud cover 20).

Average visibility in September
Củ Chi, Vietnam
  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April and December (10km).
The months with the lowest visibility are May, June, July, August, September, October and November (9km).

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