September weather forecast
Ban Dai, Thailand

The first month of the autumn, September, is a tropical month in Ban Dai, Thailand, with an average temperature varying between 20.7°C (69.3°F) and 30.3°C (86.5°F).

Temperature

September observes an average high-temperature of a hot 30.3°C (86.5°F), marking an insignificant difference from August's 29.7°C (85.5°F). During the month of September, Ban Dai's nighttime temperature lowers to an average of 20.7°C (69.3°F).

Heat index

The heat index value for September is estimated at a blisteringly hot 40°C (104°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

In September, the average relative humidity is 83%.

Rainfall

In September, the rain falls for 25.5 days. Throughout September, 133mm (5.24") of precipitation is accumulated. In Ban Dai, during the entire year, the rain falls for 194.2 days and collects up to 1063mm (41.85") of precipitation.

Daylight

In September, the average length of the day is 12h and 16min.
On the first day of September in Ban Dai, sunrise is at 06:04 and sunset at 18:35. On the last day of the month, sunrise is at 06:10 and sunset at 18:09 +07.

Sunshine

In September, the average sunshine is 8h.

UV index

The months with the highest UV index are February through April and September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: A typical high UV index of 7 in September suggests the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.