Danger! Thunderstorms and floods threaten all of Thailand!
Weather warning for Chiang Mai on October 19, 2025: thunderstorms, heavy rain and flooding in southern Thailand.

Danger! Thunderstorms and floods threaten all of Thailand!
In Thailand, residents can expect changeable weather today, October 19, 2025. Thunderstorms are the main players in several regions, such as Chiang Mai News reported. While in the north of the country the probability of thunderstorms is around 20 percent, in the south this number rises to a shocking 70 percent. Not only heavy rain but also flooding are expected here, especially in areas already affected by water problems.
The weather pattern is influenced by easterly and southeasterly winds blowing over the Gulf of Thailand and the Andaman Sea. High waves of up to two meters are forecast, particularly for the region south of Chiang Mai and in the coastal areas - another reason for ships to be careful and avoid thunderstorm zones. The public is urgently warned to be particularly careful when traveling in flooded regions to avoid unnecessary risks.
Regional weather forecasts
The next period brings the following forecasts for different regions:
- Nordthailand: 20% Gewitter, Temperaturen zwischen 21-25°C (min) und 32-35°C (max).
- Nordostthailand: 20% Gewitter, Temperaturen zwischen 22-25°C (min) und 32-34°C (max).
- Zentralthailand: 40% Gewitter, Temperaturen zwischen 23-26°C (min) und 31-35°C (max).
- Ostthailand: 40% Gewitter, Temperaturen zwischen 24-26°C (min) und 32-35°C (max).
- Südthailand (Ostküste): 70% Gewitter, teils starke Regenfälle, Temperaturen zwischen 23-25°C (min) und 29-32°C (max).
- Südthailand (Westküste): 70% Gewitter, teils starke Regenfälle, Temperaturen zwischen 23-26°C (min) und 29-32°C (max).
- Bangkok und Umgebung: 40% Gewitter, Temperaturen zwischen 25-27°C (min) und 33-35°C (max).
But that's not all: Loud TMD Between October 21st and 23rd, less rainfall is expected in the upper country, but strong winds and continuous rain in the south. The situation is particularly risky for people who live near bodies of water, as the risk of flooding is particularly high here.
Tropical storm “Fengchen” in sight
Another issue of concern is Tropical Storm Fengchen, which has formed over Luzon, Philippines and is moving toward the South China Sea. This storm is not expected to reach Thailand directly, but could cause isolated rainfall and wind changes in the northeast of the country. While Thailand has historically not experienced a direct impact from tropical storms, the remnants of storms like Fengchen can still cause significant local weather changes, such as thai23 holds on.
Comprehensive warnings now play an important role in residents’ everyday lives. Experience shows that the period between May and November is the peak season for tropical storms in Thailand. During this time, people are well advised to follow current weather warnings closely in order to be well prepared.
The forecast for the coming days suggests that the weather change will continue. Therefore, it is advisable to stay informed about the weather conditions and be prepared to take appropriate measures to protect yourself and your family.