September weather forecast
Hải Lăng, Vietnam

Weather in September

The first month of the autumn, September, is still a hot month in Hải Lăng, Vietnam, with an average temperature ranging between max 31.3°C (88.3°F) and min 25°C (77°F).

Temperature

In September, the average high-temperature is relatively the same as in August - a still tropical 31.3°C (88.3°F). In September, the average low-temperature is 25°C (77°F).

Heat index

The average heat index in September is computed to be a blistering 42°C (107.6°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'felt air temperature', or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like activity, wind, differences in body mass, height, and shape, and clothing affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. 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. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

In September, the average relative humidity is 80%.

Rainfall

In Hải Lăng, Vietnam, in September, it is raining for 15.9 days, with typically 44mm (1.73") of accumulated precipitation. Throughout the year, in Hải Lăng, there are 140.7 rainfall days, and 282mm (11.1") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 14min.
On the first day of September, sunrise is at 05:37 and sunset at 18:04. On the last day of the month, sunrise is at 05:40 and sunset at 17:41 +07.

Sunshine

In September, the average sunshine is 8.9h.

UV index

The months with the highest UV index in Hải Lăng are April through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Hải Lăng?

The average high-temperature, in September, is 31.3°C (88.3°F), while the average low-temperature is 25°C (77°F). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in September is computed to be 42°C (107.6°F).

What is the average humidity in September in Hải Lăng?

In Hải Lăng, Vietnam, the average relative humidity in September is 80%.

How many days does it rain in September in Hải Lăng?

In September, in Hải Lăng, Vietnam, the rain falls for 15.9 days. Throughout September, 44mm (1.73") of precipitation is accumulated.

How many hours of daylight does Hải Lăng have in September?

In September, the average day length in Hải Lăng is 12h and 14min.

When is the sunrise / sunset in September in Hải Lăng?

In September, on the first day of the month, sunrise is at 05:37 and sunset at 18:04. On the last day of the month, in Hải Lăng, Vietnam, sunrise is at 05:40 and sunset at 17:41 +07.

How many hours of sunshine does Hải Lăng have in September?

In Hải Lăng, the average sunshine duration in September is 8.9h.

When is the highest UV index in Hải Lăng?

April through September, with an average maximum UV index of 7, are months with the highest UV index in Hải Lăng.

How high is the UV index in September in Hải Lăng?

The average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to Sun's UV rays.

Average temperature in September
Hải Lăng, Vietnam

Average temperature in September - Hải Lăng, Vietnam
  • Average high temperature in September: 31.3°C

The warmest month (with the highest average high temperature) is June (35.1°C).
The month with the lowest average high temperature is January (20.4°C).

  • Average low temperature in September: 25°C

The month with the highest average low temperature is June (27.5°C).
The coldest month (with the lowest average low temperature) is January (15.4°C).

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Average pressure in September
Hải Lăng, Vietnam

Average pressure in September - Hải Lăng, Vietnam
  • Average pressure in September: 1007.9mbar

The month with the highest atmospheric pressure is January (1018.9mbar).
The month with the lowest atmospheric pressure is June (1002.8mbar).

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Average wind speed in September
Hải Lăng, Vietnam

Average wind speed in September - Hải Lăng, Vietnam
  • Average wind speed in September: 9.5km/h

The windiest month (with the highest average wind speed) is June (11.9km/h).
The calmest month (with the lowest average wind speed) is August (8.9km/h).

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Average humidity in September
Hải Lăng, Vietnam

Average humidity in September - Hải Lăng, Vietnam
  • Average humidity in September: 80%

The month with the highest relative humidity is April (81%).
The month with the lowest relative humidity is June (70%).

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Average rainfall in September
Hải Lăng, Vietnam

Average rainfall in September - Hải Lăng, Vietnam
  • Average rainfall in September: 44mm

The wettest month (with the highest rainfall) is August (61mm).
The driest month (with the least rainfall) is February (5mm).

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Average rainfall days in September
Hải Lăng, Vietnam

Average rainfall days in September - Hải Lăng, Vietnam
  • Average rainfall days in September: 15.9 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (5.8 days).

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Average daylight in September /
Average sunshine in September
Hải Lăng, Vietnam

Average daylight in September / Average sunshine in September - Hải Lăng, Vietnam
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 12min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in September
Hải Lăng, Vietnam

Average sunshine days in September - Hải Lăng, Vietnam
  • Average sunshine days in September: 10.7 days

The month with the most sunshine days is December (21.8 days).
The month with the least sunshine days is July (9.8 days).

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Average UV index in September
Hải Lăng, Vietnam

Average UV index in September - Hải Lăng, Vietnam
  • Average UV index in September: 7

The months with the highest UV index are April, May, June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 4).

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Average cloud cover in September
Hải Lăng, Vietnam

Average cloud cover in September - Hải Lăng, Vietnam
  • Average cloud cover in September: 38

The months with the most cloud cover are January and March (Cloud cover 65).
The month with the least cloud cover is June (Cloud cover 35).

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Average visibility in September
Hải Lăng, Vietnam

Average visibility in September - Hải Lăng, Vietnam
  • Average visibility in September: 10km

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

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