Weekly weather forecast: Extreme heat in Bangkok and Chiang Mai; several days of rain in Phuket

Bangkok to see extreme heat midweek, with rain early and late in the week

Bangkok will see both extreme heat in the middle of the week and occasional rain early and late in the week. Highs will range from 33–35°C, with lows of 25–27°C. On Wednesday, October 21, skies will be sunny with occasional rain and a 50% chance of rain; humidity will be 64%. On Thursday, October 22, skies will clear, with mostly sunny conditions and some clouds. The chance of rain will drop to 20%, and humidity will be 62%. From Friday, October 23, through Sunday, October 25, conditions will be very hot, with highs reaching 35°C on all three days and a low 10–40% chance of rain. Occasional rain is expected to return on Monday, October 26, and Tuesday, October 27, when the chance of rain will rise to 50% on both days. Highs will dip slightly to 34°C and 33°C, while humidity will increase to 67% and 68%.

Chiang Mai to stay hot and dry, with more rain late in the week

Chiang Mai will remain very hot with little rain from early to midweek, before rainfall increases noticeably late in the week. Highs will range from 31–36°C. From Wednesday, October 21, through Sunday, October 25, it will be very hot on most days, with sunny skies on Thursday, October 22. Highs will range from 34–36°C, and the chance of rain will remain at 10% each day. Relative humidity will be between 54% and 57%. Conditions will change on Monday, October 26, with occasional rain and a 50% chance of rain; the high will fall to 33°C. Rain will become more pronounced on Tuesday, October 27, with periods of sunshine and rain. The chance of rain will rise to 70%, and the high will drop to 31°C, the coolest day of the week.

Several days of rain in Phuket, with the highest chance Saturday and Sunday before easing Tuesday

On Wednesday, October 21, Phuket will see showers with breaks, an 80% chance of rain, 77% humidity and a high of 32°C. On Thursday, October 22, the chance of rain will fall to 50%, with mostly sunny skies and occasional rain; humidity will drop to 74%. Friday, October 23, will be mostly cloudy with some rain at times, and the chance of rain will rise to 70%. Rain is forecast on Saturday, October 24, and Sunday, October 25, with the chance of rain rising to 90% on both days. Rainfall is forecast to reach up to 49 mm on Saturday and 107 mm on Sunday. Humidity will be 77–80% on both days. On Monday, October 26, showers with breaks will return, and the chance of rain will fall to 80%; the high will be 33°C. On Tuesday, October 27, skies will become noticeably clearer and sunny. The chance of rain will drop to just 10%, and humidity will fall to 74%.