September weather forecast
Nakhon Sawan, Thailand

September ushers in the wettest period for Nakhon Sawan, the records indicate an average precipitation of 237mm (9.33") across 18 days. Correspondingly, the temperatures continue their gradual descent with the average high now at 33.1°C (91.6°F), signaling a move towards cooler conditions. The prevailing high humidity of 83%, along with the significant rainfall can lead to a slight discomfort. Despite the high rainfall, the days continue to be fairly long with ample daylight.

Temperature

With the arrival of September, Nakhon Sawan's average high-temperature registers at a still tropical 33.1°C (91.6°F), indicating a subtle variation from the previous month. During September, Nakhon Sawan records a consistent average nighttime temperature of 24.5°C (76.1°F).

Heat index

Throughout September, the heat index is calculated to be a life-threatening hot 50°C (122°F). Warning: Heat cramps and heat exhaustion are anticipated. Heatstroke is a risk with ongoing activity.
Observations indicate that the heat index values are for shady locations with light wind. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

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

Rainfall

September is the month with the most rainfall in Nakhon Sawan. Rain falls for 18 days and accumulates 237mm (9.33") of precipitation.

Daylight

In Nakhon Sawan, the average length of the day in September is 12h and 13min.
On the first day of September, sunrise is at 06:06 and sunset at 18:32. On the last day of the month, sunrise is at 06:09 and sunset at 18:09 +07.