September weather forecast
Giồng Riềng, Vietnam

September

Weather in September

The first month of the autumn, September, is also a moderately hot month in Giồng Riềng, Vietnam, with an average temperature varying between 29.9°C (85.8°F) and 26.6°C (79.9°F).

Temperature

September notes an average high-temperature of a warm 29.9°C (85.8°F), subtly differing from August's 30.4°C (86.7°F). Giồng Riềng experiences a subtle drop in temperature during the September nights, recording an average of 26.6°C (79.9°F).

Heat index

The average heat index in September is calculated to be a torrid 37°C (98.6°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', gives an indication of how one might feel in terms of heat after considering humidity. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
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 high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In September, the average relative humidity is 78%.

Rainfall

In September, the rain falls for 21 days. Throughout September, 122mm (4.8") of precipitation is accumulated. Throughout the year, there are 220.7 rainfall days, and 1169mm (46.02") 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 05:49 and sunset at 18:07. On the last day of the month, sunrise is at 05:47 and sunset at 17:49 +07.

Sunshine

In September, the average sunshine is 7.8h.

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 value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum UV index of 7 in September translates into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days.

Frequently asked questions

How hot does it get in Giồng Riềng in September?
Giồng Riềng in September has an average high-temperature of 29.9°C (85.8°F) and an average low-temperature of 26.6°C (79.9°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in September is calculated to be 37°C (98.6°F).
What is the average humidity in September?
In September, the average relative humidity is 78%.
How many days does it rain in September?
In Giồng Riềng, during September, the rain falls for 21 days and regularly aggregates up to 122mm (4.8") of precipitation.
What is the average length of the day in September?
In Giồng Riềng, the average day length in September is 12h and 11min.
When is the sunrise / sunset in September?
In September, on the first day of the month, sunrise is at 05:49 and sunset at 18:07. On the last day of the month, sunrise is at 05:47 and sunset at 17:49 +07.
How many hours of sunshine does Giồng Riềng have in September?
The average sunshine duration in September is 7.8h.
What is the month with the highest UV index?
January through December, with an average maximum UV index of 7, are months with the highest UV index.
What is the month with the lowest UV index in Giồng Riềng?
January through December, with an average maximum UV index of 7, are months with the lowest UV index.
What is the UV index intensity in September in Giồng Riềng?
In September, the average daily maximum UV index in Giồng Riềng is 7. A UV Index estimate of 6 to 7 represents a high health risk 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 - Giồng Riềng, Vietnam
Average temperature in September
Giồng Riềng, Vietnam
  • Average high temperature in September: 29.9°C

The warmest month (with the highest average high temperature) is April (32.8°C).
The month with the lowest average high temperature is December (29.8°C).

  • Average low temperature in September: 26.6°C

The month with the highest average low temperature is May (28°C).
The coldest month (with the lowest average low temperature) is January (23.3°C).

Average pressure in September - Giồng Riềng, Vietnam
Average pressure in September
Giồng Riềng, Vietnam
  • Average pressure in September: 1008.5mbar

The month with the highest atmospheric pressure is January (1011.5mbar).
The months with the lowest atmospheric pressure are June and July (1007.8mbar).

Average wind speed in September - Giồng Riềng, Vietnam
Average wind speed in September
Giồng Riềng, Vietnam
  • Average wind speed in September: 18.4km/h

The windiest month (with the highest average wind speed) is August (20.4km/h).
The calmest months (with the lowest average wind speed) are April and October (12.5km/h).

Average humidity in September - Giồng Riềng, Vietnam
Average humidity in September
Giồng Riềng, Vietnam
  • Average humidity in September: 78%

The month with the highest relative humidity is November (80%).
The months with the lowest relative humidity are February and March (69%).

Average rainfall in September - Giồng Riềng, Vietnam
Average rainfall in September
Giồng Riềng, Vietnam
  • Average rainfall in September: 122mm

The wettest month (with the highest rainfall) is October (204mm).
The driest month (with the least rainfall) is February (17mm).

Average rainfall days in September - Giồng Riềng, Vietnam
Average rainfall days in September
Giồng Riềng, Vietnam
  • Average rainfall days in September: 21 days

The month with the highest number of rainy days is October (27.5 days).
The month with the least rainy days is February (6.8 days).

Average daylight in September / Average sunshine in September - Giồng Riềng, Vietnam
Average daylight in September /
Average sunshine in September
Giồng Riềng, 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 36min).

  • Average sunshine in September: 7h and 5min

The months with the most sunshine are April and May (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).

Average sunshine days in September - Giồng Riềng, Vietnam
Average sunshine days in September
Giồng Riềng, Vietnam
  • Average sunshine days in September: 7.8 days

The month with the most sunshine days is February (19.8 days).
The month with the least sunshine days is October (3.2 days).

Average UV index in September - Giồng Riềng, Vietnam
Average UV index in September
Giồng Riềng, 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 - Giồng Riềng, Vietnam
Average cloud cover in September
Giồng Riềng, Vietnam
  • Average cloud cover in September: 49

The month with the most cloud cover is September (Cloud cover 49).
The month with the least cloud cover is February (Cloud cover 28).

Average visibility in September - Giồng Riềng, Vietnam
Average visibility in September
Giồng Riềng, Vietnam
  • Average visibility in September: 10km

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

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