Fog and Smog in Northern Thailand: Causes and Effects

The northern region of Thailand is currently experiencing a decrease in temperature of 1-3 degrees Celsius due to a moderate high-pressure system covering the northeast and the South China Sea. Concurrently, weak westerly winds in the upper regions blanket the north, resulting in cool to cold weather with morning fog. Meanwhile, areas in the northeast, central, east and upper south continue to experience cool weather in the mornings.

A notable deterioration in air quality is being observed in the lower northern region, central region, including Bangkok and its vicinity, and the east. This is due to an accumulation of dust particles and moderate to high levels of smog as the winds blowing across the regions weaken.

The northern region is confronted with cold to freezing temperatures, with a decrease of 1-3 degrees Celsius. The coldest temperatures range between 15-19 degrees Celsius…