September weather forecast
Roi Et, Thailand

The first month of the autumn, September, is still a tropical month in Roi Et, Thailand, with an average temperature varying between 24.5°C (76.1°F) and 31.4°C (88.5°F).

Temperature

The onset of September notes an average high-temperature of a still tropical 31.4°C (88.5°F), subtly shifted from August's 31.7°C (89.1°F). During September, the average low-temperature is a warm 24.5°C (76.1°F).

Heat index

Throughout September, the heat index is appraised at a blisteringly hot 43°C (109.4°F). Keep alert: Heat cramps and heat exhaustion are probable. Heatstroke is a potential danger with continued physical activity.
Observations indicate that the heat index values are for shady locations with light wind. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are primarily vital for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

September is the most humid month, with an average relative humidity of 81%.

Rainfall

In Roi Et, Thailand, in September, during 18 rainfall days, 220mm (8.66") of precipitation is typically accumulated. In Roi Et, during the entire year, the rain falls for 108 days and collects up to 1342mm (52.83") of precipitation.

Daylight

In Roi Et, Thailand, the average length of the day in September is 12h and 14min.
On the first day of the month, sunrise is at 05:52 and sunset at 18:18. On the last day of September, in Roi Et, sunrise is at 05:55 and sunset at 17:55 +07.