September weather forecastCát Lái, Vietnam

September

Weather in September

The first month of the autumn, September, is also a hot month in Cát Lái, Vietnam, with temperature in the range of an average low of 24.4°C (75.9°F) and an average high of 30.8°C (87.4°F).

Temperature

September brings the lowest temperatures, with an average high of 30.8°C (87.4°F) and an average low of 24.4°C (75.9°F).

Heat index

In September, the average heat index is computed to be a blisteringly hot 41°C (105.8°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. 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 human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

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

Rainfall

In Cát Lái, 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

In September, the average length of the day is 12h and 11min.
On the first day of the month, sunrise is at 05:43 and sunset at 18:02. On the last day of September, sunrise is at 05:41 and sunset at 17:43 +07.

Sunshine

In Cát Lái, the average sunshine in September is 7.3h.

UV index

The months with the highest UV index in Cát Lái 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 reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the maximum UV index of 7 suggests this advice:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.

Frequently asked questions

September, on average, is the coldest month, registering a high temperature of 30.8°C (87.4°F) and a low of 24.4°C (75.9°F).

During September, Cát Lái experiences an average high-temperature of 30.8°C (87.4°F) and a low-temperature of 24.4°C (75.9°F). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is computed to be 41°C (105.8°F).

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

In September, the average relative humidity is 83%.

In September, the rain falls for 28.2 days. Throughout September, 175mm (6.89") of precipitation is accumulated.

The average day length in September is 12h and 11min.

On the first day of September, sunrise is at 05:43 and sunset at 18:02. On the last day of the month, sunrise is at 05:41 and sunset at 17:43 +07.

The average sunshine duration in September is 7.3h.

January through December, with an average maximum UV index of 7, are months with the highest UV index.

The months with the lowest UV index are January through December, with an average maximum UV index of 7.

In September, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high hazard to health from unprotected exposure to 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Cát Lái, 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
Cát Lái, 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
Cát Lái, 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
Cát Lái, 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
Cát Lái, 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
Cát Lái, 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
Cát Lái, Vietnam

  • Average daylight in September: 12h and 12min

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 18min

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
Cát Lái, 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
Cát Lái, 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
Cát Lái, 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
Cát Lái, 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).