Thailand Weather Update: Cool Winds, Heavy Rain and Tropical Storm Fengshen
Written by the editors of theo-courant.com, your reference guide to Thailand and South-East Asia - based in Bangkok, at the heart of Thai culture.
Thailand is on alert as cooler air from China and tropical storm Fengshen shape contrasting weather patterns across the country. The north cools down while the south faces heavy rain.
Thailand Weather Overview
The Thai Meteorological Department (TMD) reports that a moderate high-pressure system from China continues to extend over northern and northeastern Thailand. Morning temperatures are dropping, with strong winds expected in upper regions.
Meanwhile, tropical storm Fengshen is intensifying over the South China Sea, heading toward Vietnam. Though the storm will not directly affect Thailand, it brings unstable weather and rainfall risks.
You can follow the progress of Storm Fengshen live on the Zoom Earth website.
Regional Forecast: October 22–23
Northern Thailand
Cool mornings with light rain in some areas.
Temperatures: lows 20–23°C, highs 32–35°C.
Winds up to 15 km/h.
Northeastern Thailand
Isolated thundershowers possible in Mukdahan, Amnat Charoen, and Ubon Ratchathani.
Temperatures: lows 19–24°C, highs 31–33°C.
Winds: 15–30 km/h.
Central Thailand
Light isolated rain.
Temperatures: 24–25°C in the morning, rising to 32–34°C.
Winds: 10–20 km/h.
Eastern Thailand
Thundershowers expected in Sa Kaeo, Chanthaburi, and Trat.
Temperatures: lows 23–26°C, highs 32–35°C.
Winds: 15–30 km/h. Waves up to 1 metre, rising over 2 metres during storms.
Southern Thailand (Gulf Coast)
Monsoon trough bringing widespread thundershowers and heavy rain.
Prachuap Khiri Khan to Narathiwat most affected.
Temperatures: lows 23–26°C, highs 32–34°C.
Winds: 15–30 km/h, waves over 2 metres.
Southern Thailand (Andaman Coast)
Phuket and Krabi to face heavy showers.
Temperatures: lows 23–24°C, highs 30–33°C.
Westerly winds up to 30 km/h, with waves exceeding 2 metres during storms.
Bangkok and Central Plains
Isolated light rain.
Temperatures: 24–25°C in the morning, highs up to 35°C.
Light winds.
Fengshen Update
Tropical storm Fengshen, now over the upper South China Sea, is forecast to make landfall in Vietnam between October 22 and 23.
The TMD confirms the storm will not directly impact Thailand but warns of increased rain and strong winds in southern provinces. All vessels are advised to navigate with caution.
Seasonal Shift: Thailand Enters Winter
Thailand officially enters the winter season on October 23, about a week later than usual.
Cool air will first cover the north and northeast, spreading slowly to the central and eastern regions.
The south will continue to experience frequent rainfall.
In mountainous areas such as Mae Hong Son, Chiang Rai, Nan, and Loei, temperatures could drop to 7–8°C, with frost possible.
Bangkok and nearby provinces can expect cooler mornings, with lows around 18–20°C.
According to the TMD, the coldest period is expected between mid-December and early February, when minimum temperatures average 21–22°C.
Travel Tips and Safety Advice
- Avoid travelling through flood-prone or low-lying areas in the south.
- For northern regions, pack warmer clothing for early mornings and late evenings.
- Boat operators should avoid thundershower zones and stay updated on marine advisories.
- Monitor TMD updates for local forecasts and weather warnings.
Related Articles
- Cool winds up north, flash floods lash Thailand’s south
- Storm warning for southern Thailand as heavy rains loom
- Thailand’s winter season: what to expect
FAQ
Is tropical storm Fengshen affecting Thailand?
No, Fengshen is expected to make landfall in Vietnam and will not directly impact Thailand. However, it contributes to unstable southern weather.
When does the winter season start in Thailand?
Winter officially begins on October 23, with cooler conditions first appearing in the north and northeast.
What areas are most at risk from heavy rain?
Southern coastal provinces such as Prachuap Khiri Khan, Surat Thani, and Narathiwat face the highest risk of flash floods.
How should travellers prepare for this weather?
Carry light rain gear, avoid boating during storms, and check weather updates from the Thai Meteorological Department.
