September weather forecast
Kép, Vietnam

September

Weather in September

September, the first month of the autumn in Kép, is still a hot month, with an average temperature varying between 31.5°C (88.7°F) and 23.8°C (74.8°F).

Temperature

Transitioning into September, Kép experiences an average high-temperature of a still tropical 31.5°C (88.7°F), marking a minor shift from the preceding month. Kép experiences a mean temperature of 23.8°C (74.8°F) during September nights.

Heat index

During September, the heat index is appraised at a blistering 42°C (107.6°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In Kép, the average relative humidity in September is 79%.

Rainfall

In Kép, in September, it is raining for 14.4 days, with typically 37mm (1.46") of accumulated precipitation. Throughout the year, there are 165.7 rainfall days, and 431mm (16.97") of precipitation is accumulated.

Daylight

In Kép, the average length of the day in September is 12h and 16min.
On the first day of the month, sunrise is at 05:38 and sunset at 18:11. On the last day of September, sunrise is at 05:45 and sunset at 17:43 +07.

Sunshine

In September, the average sunshine is 9.2h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In September, a regular UV index of 7 translates into these guidelines:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. 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. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.

Frequently asked questions

Is it hot during September?
In September, in Kép, the average high-temperature is 31.5°C (88.7°F), and the average low-temperature is 23.8°C (74.8°F). The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in September is appraised at 42°C (107.6°F).
What is the average humidity in September?
The average relative humidity in September is 79%.
How much does it rain in September?
In Kép, in September, it is raining for 14.4 days, with typically 37mm (1.46") of accumulated precipitation.
How many hours of daylight does Kép have in September?
In Kép, Vietnam, the average day length in September is 12h and 16min.
What time are sunrise and sunset in September?
In September, on the first day of the month, sunrise is at 05:38 and sunset at 18:11. On the last day of the month, sunrise is at 05:45 and sunset at 17:43 +07.
How many hours of sunshine does Kép have in September?
In Kép, the average sunshine duration in September is 9.2h.
What are the months with the highest UV index in Kép?
The months with the highest UV index are May through September, with an average maximum UV index of 7.
What is the UV index intensity in September?
In September, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from 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 - Kép, Vietnam
Average temperature in September
Kép, Vietnam
  • Average high temperature in September: 31.5°C

The warmest month (with the highest average high temperature) is June (34.3°C).
The month with the lowest average high temperature is January (19.9°C).

  • Average low temperature in September: 23.8°C

The month with the highest average low temperature is June (26.3°C).
The coldest month (with the lowest average low temperature) is January (13.8°C).

Average pressure in September - Kép, Vietnam
Average pressure in September
Kép, Vietnam
  • Average pressure in September: 1008.4mbar

The month with the highest atmospheric pressure is January (1019.4mbar).
The month with the lowest atmospheric pressure is June (1002.8mbar).

Average wind speed in September - Kép, Vietnam
Average wind speed in September
Kép, Vietnam
  • Average wind speed in September: 7.5km/h

The windiest month (with the highest average wind speed) is March (10.1km/h).
The calmest month (with the lowest average wind speed) is August (7.4km/h).

Average humidity in September - Kép, Vietnam
Average humidity in September
Kép, Vietnam
  • Average humidity in September: 79%

The month with the highest relative humidity is August (81%).
The month with the lowest relative humidity is December (69%).

Average rainfall in September - Kép, Vietnam
Average rainfall in September
Kép, Vietnam
  • Average rainfall in September: 37mm

The wettest month (with the highest rainfall) is August (82mm).
The driest month (with the least rainfall) is February (11mm).

Average rainfall days in September - Kép, Vietnam
Average rainfall days in September
Kép, Vietnam
  • Average rainfall days in September: 14.4 days

The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is November (8.3 days).

Average daylight in September / Average sunshine in September - Kép, Vietnam
Average daylight in September /
Average sunshine in September
Kép, Vietnam
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in September - Kép, Vietnam
Average sunshine days in September
Kép, Vietnam
  • Average sunshine days in September: 13.6 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is July (8.9 days).

Average UV index in September - Kép, Vietnam
Average UV index in September
Kép, Vietnam
  • Average UV index in September: 7

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

Average cloud cover in September - Kép, Vietnam
Average cloud cover in September
Kép, Vietnam
  • Average cloud cover in September: 37

The month with the most cloud cover is March (Cloud cover 65).
The month with the least cloud cover is September (Cloud cover 37).

Average visibility in September - Kép, Vietnam
Average visibility in September
Kép, Vietnam
  • Average visibility in September: 9km

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

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