Area and location
Chumphon is situated on the eastern Thai coast in the uppermost part of Southern Thailand. It is approximately 498 kilometers away from Bangkok on Highway no. 4 (Phetkasem Road), and 467 kilometers on the southern railway. It is the fourth biggest southern province, i.e. approximately 6,010 square kilometers. Based on its location, from the Thai capital, Chumphon is the first province of the upper south of Thailand. It is located on the coast of the Gulf of Thailand, lying from the north to the south, with the length of 222 kilometers.
The general geography of the province is described as a long and narrow area which can be generally divided into 3 parts. Firstly, the west has Phuket and Tanao Sri Mountain ranges which serve as natural borders. Secondly, the central fertile flatland serves as the main agricultural area of the province. Thridly, the east is flatland on the coast of the Gulf of Thailand. The beaches in Chumphon are linear-shaped with a few being curve-shaped. The sea-coast is 222 Kilometer long and the width of the provincial area is around 36 kilometers.
Chumphon is located under the influence of southwest and northeast winds. As a result, there are only 2 seasons in Chumphon
The average temperature in Chumphon is around 27.3 degrees Celsius. The average high temperature is 34.8 degrees Celsius. The average low temperature is 21.6 degrees Celsius. The average high relative humidity is 97%. The average low relative humidity is 49%. The average relative humidity throughout the year is 81%.