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Live forecasts update automatically; written guidance last reviewed 20 June 2026 by the Civic Affairs weather desk. Data from national met services via Open-Meteo.
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Thailand has a tropical monsoon climate with three distinct seasons: cool (November to February), hot (March to May), and rainy (June to October). The live forecast above shows the current conditions, but for most visitors the cool season offers the most comfortable temperatures and lower humidity.
What is the weather in Thailand like year round?
Average temperatures across the country range from 24°C to 34°C, with coastal areas staying slightly cooler. In Northern Thailand, including Chiang Mai, the cool season can dip to 15°C at night. The hot season (March–May) sees peak heat, often exceeding 38°C. The rainy season (June–October) brings heavy but usually short downpours, especially in the afternoons. The south and east coasts experience two monsoon periods, so the timing of rain varies by region. For a detailed breakdown, see our UK weather hub for comparison.
When should I visit, and where should I go?
For clear skies and low humidity, travel between November and February. This is peak tourist season. If you prefer fewer crowds, consider March or early April before the monsoon begins. The Andaman coast (Phuket, Krabi) is best from November to April, while the Gulf coast (Koh Samui) sees rain later, making July to September still viable. For the latest outlook, check the 10 day weather forecast UK before planning your departure.
What is the weather in Bangkok like?
Bangkok has a tropical wet-and-dry climate. The cool season (Nov–Feb) sees highs around 31°C with lower humidity. March–May can feel stifling above 35°C. June–October brings daily thundershowers; humidity stays high year round.
Is Thailand safe to visit during the rainy season?
Yes, but expect frequent short downpours and occasional flooding in low-lying areas. Many islands remain accessible, but boat services can be disrupted. Always check local weather warnings before travelling.
Does Thailand have a monsoon season?
Yes, the southwest monsoon runs from June to October, affecting most of the country. The northeast monsoon (November–February) brings drier, cooler air. Some southern regions experience a second rainy period in December–January.