Mercury set to drop again this weekListen to this articleA new cold spell is expected from Tuesday until Saturday with temperatures in the upper North dropping 1–3C. The Thai Meteorological Department has forecast a fresh bout of cold weather affecting upper Thailand, with conditions turning cool to cold. The drop in temperatures will be driven by a new, moderately strong high-pressure system, or cold air mass, moving south from China to cover upper Thailand and the South China Sea. In the Central Plains region, cool to cold weather is expected with morning fog. Bangkok and its surrounding areas are expected to be hit by cool conditions with morning fog.

Source: Bangkok Post January 19, 2026 22:14 UTC