, the first month of the autumn in Nan
, is still a hot month, with temperature in the range of an average low of 23.3°C (73.9°F) and an average high of 32.7°C (90.9°F).
In September, the average high-temperature is almost the same as in August
- a still tropical 32.7°C (90.9°F). In September, in Nan, the average low-temperature is 23.3°C (73.9°F).
The average heat index in September is appraised at a life-threatening hot 49°C (120.2°F). Be wary
: Heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.Note
: The heat index, also known as 'feels like', 'apparent temperature', 'felt air temperature', or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is individual, with diverse people perceiving weather differently for numerous reasons (differences in body mass, height, and shape, clothing, metabolic differences), and activity. 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. 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.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
August and September, with an average relative humidity of 84%, are the most humid months in Nan.
In Nan, Thailand
, it is raining for 18 days, with typically 204mm (8.03") of accumulated precipitation. In Nan, during the entire year, the rain falls for 124 days and collects up to 1234mm (48.58") of precipitation.
The average length of the day in September in Nan is 12h and 15min.
On the first day of September in Nan, sunrise is at 06:02 and sunset at 18:31. On the last day of the month, sunrise is at 06:07 and sunset at 18:06 +07.
The average sunshine in September in Nan, Thailand, is 6h.
The months with the highest UV index are March
through September, with an average maximum UV index of 12. A UV Index estimate of 11, and higher, represents an extreme health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note
: The average daily UV index of 12 in September transform into the following instructions:
Take all necessary precautions, as unprotected skin can burn in minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim.