September weather forecast
Lai Vung, Vietnam

September

Weather in September

September, the first month of the autumn in Lai Vung, is still a tropical month, with an average temperature varying between 25°C (77°F) and 31.5°C (88.7°F).

Temperature

Lai Vung experiences a subtle adjustment in high-temperatures to a still hot 31.5°C (88.7°F) with the onset of September, maintaining near parity with August's 32.1°C (89.8°F). In September, the nighttime temperature lowers to an average of 25°C (77°F).

Heat index

September's mean heat index is appraised at an extremely hot 43°C (109.4°F). Note: Heat exhaustion and heat cramps are probable. Heatstroke can follow with prolonged activity.
It is important to note that the heat index values are for shaded areas and light wind scenarios. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

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

Rainfall

In September, in Lai Vung, the rain falls for 21.7 days. Throughout September, 103mm (4.06") of precipitation is accumulated. Throughout the year, there are 215.1 rainfall days, and 875mm (34.45") of precipitation is accumulated.

Daylight

In Lai Vung, Vietnam, the average length of the day in September is 12h and 11min.
On the first day of September, sunrise is at 05:47 and sunset at 18:06. On the last day of the month, sunrise is at 05:45 and sunset at 17:48 +07.

Sunshine

In September, the average sunshine is 7.6h.

UV index

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. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: In September, the maximum UV index of 7 suggests these recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.

Frequently asked questions

Is it hot during September?
September temperatures vary between a high-temperature of 31.5°C (88.7°F) and a low-temperature of 25°C (77°F). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is appraised at 43°C (109.4°F).
What are the most humid months?
The months with the highest humidity are July, September and October, with an average relative humidity of 80%.
What is the average humidity in September in Lai Vung?
The average relative humidity in September is 80%.
How many days does it rain in September?
In Lai Vung, in September, it is raining for 21.7 days, with typically 103mm (4.06") of accumulated precipitation.
What is the average length of the day in September?
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 05:47 and sunset at 18:06. On the last day of the month, sunrise is at 05:45 and sunset at 17:48 +07.
How long on average sun shines in September?
The average sunshine duration in September is 7.6h.
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?
The months with the lowest UV index are January through December, with an average maximum UV index of 7.
What is the UV index intensity in September?
In Lai Vung, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes 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
Lai Vung, Vietnam
  • Average high temperature in September: 31.5°C

The warmest months (with the highest average high temperature) are March and April (35.1°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°C).

Average pressure in September
Lai Vung, Vietnam
  • Average pressure in September: 1008.4mbar

The month with the highest atmospheric pressure is January (1011.5mbar).
The month with the lowest atmospheric pressure is July (1007.6mbar).

Average wind speed in September
Lai Vung, Vietnam
  • Average wind speed in September: 11.8km/h

The windiest month (with the highest average wind speed) is August (13.7km/h).
The calmest month (with the lowest average wind speed) is October (8.9km/h).

Average humidity in September
Lai Vung, Vietnam
  • Average humidity in September: 80%

The months with the highest relative humidity are July, September and October (80%).
The month with the lowest relative humidity is March (64%).

Average rainfall in September
Lai Vung, Vietnam
  • Average rainfall in September: 103mm

The wettest month (with the highest rainfall) is October (122mm).
The driest month (with the least rainfall) is February (11mm).

Average rainfall days in September
Lai Vung, Vietnam
  • Average rainfall days in September: 21.7 days

The month with the highest number of rainy days is May (25.2 days).
The month with the least rainy days is February (6.6 days).

Average daylight in September /
Average sunshine in September
Lai Vung, 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 24min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

Average sunshine days in September
Lai Vung, Vietnam
  • Average sunshine days in September: 7.4 days

The month with the most sunshine days is February (20.1 days).
The month with the least sunshine days is May (5.1 days).

Average UV index in September
Lai Vung, 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
Lai Vung, Vietnam
  • Average cloud cover in September: 47

The months with the most cloud cover are July and September (Cloud cover 47).
The month with the least cloud cover is February (Cloud cover 25).

Average visibility in September
Lai Vung, 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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