Khon Kaen
Thailand
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Khon Kaen, Thailand

September, the first month of the autumn, in Khon Kaen, is still a hot month, with temperature in the range of an average high of 31.9°C (89.4°F) and an average low of 23.4°C (74.1°F).

Temperature

In September, the average high-temperature is relatively the same as in August - a still tropical 31.9°C (89.4°F). In Khon Kaen, Thailand, the average low-temperature is 23.4°C (74.1°F).

Heat index

In September, the average heat index is appraised at a blazing hot 45.3°C (113.5°F). Be wary - heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'felt air temperature', or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like activity, metabolic differences, wind, and clothing affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. 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

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

Rainfall

September is the month with the most rainfall in Khon Kaen. Rain falls for 18 days and accumulates 232mm (9.1") of precipitation.

Daylight

In September, the average length of the day is 12.2h.

Sunshine

The average sunshine in September is 5.7h.

What is the temperature in September in Khon Kaen?

The average high-temperature, in September, is 31.9°C (89.4°F), while the average low-temperature is 23.4°C (74.1°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that takes the relative humidity and factores it into the air temperature reading, in September is estimated at 45.3°C (113.5°F).

What is the most humid month in Khon Kaen?

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

What is the average humidity in September in Khon Kaen?

In Khon Kaen, Thailand, the average relative humidity in September is 83%.

How much does it rain in Khon Kaen in September?

In Khon Kaen, in September, it is raining for 18 days, with typically 232mm (9.1") of accumulated precipitation.

What is the rainiest month in Khon Kaen?

September is the month with the most rainfall. Rain falls for 18 days and accumulates 232mm (9.1") of precipitation.

How many hours of daylight does Khon Kaen have in September?

The average length of the day in September is 12.2h.

How long on average sun shines in September in Khon Kaen?

The average sunshine in September in Khon Kaen, Thailand, is 5.7h.
Average temperature in September - Khon Kaen, Thailand
  • Average high temperature in September: 31.9°C

The warmest month (with the highest average high temperature) is April (36.4°C).
The month with the lowest average high temperature is December (30.1°C).

  • Average low temperature in September: 23.4°C

The month with the highest average low temperature is May (24.4°C).
The coldest month (with the lowest average low temperature) is December (16°C).

Average humidity in September - Khon Kaen, Thailand
  • Average humidity in September: 83%

The month with the highest relative humidity is September (83%).
The month with the lowest relative humidity is March (61%).

Average rainfall in September - Khon Kaen, Thailand
  • Average rainfall in September: 232mm

The wettest month (with the highest rainfall) is September (232mm).
The driest month (with the lowest rainfall) is January (4mm).

Average rainfall days in September - Khon Kaen, Thailand
  • Average rainfall days in September: 18 days

Months with the highest number of rainy days are August and September (18 days).
Months with the lowest number of rainy days are January and December (1 days).

Average daylight in September / Average sunshine in September - Khon Kaen, Thailand
  • Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 13.1h).
The month with shortest days is December (Average daylight: 11.2h).

  • Average sunshine in September: 5.7h

The month with most sunshine is January (Average sunshine: 9h).
The month with least sunshine is August (Average sunshine: 5.3h).