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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Regional Report weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Thailand’s climate is broadly tropical, shaped by a southwest monsoon from May to October and a cooler dry season from November to February. The live forecast above shows current conditions, but the monthly breakdown below helps you plan for heat, rain and humidity.
What is Thailand’s weather like month by month?
Thailand has three main seasons: hot (March–May), rainy (June–October) and cool (November–February). Temperatures vary more by altitude and latitude than by month, with the south seeing year-round warmth.
- Cool season (Nov–Feb): Pleasant 24–30°C, low humidity. Best time for northern treks and beach visits. Thailand weather February averages 28°C in Bangkok with little rain.
- Hot season (Mar–May): 30–38°C, humidity rising. April is typically the hottest month. Thailand weather by month celsius shows March at 33°C, April at 35°C.
- Rainy season (Jun–Oct): 26–32°C, heavy but often short downpours. Thailand weather by month October sees peak rainfall in central and northern regions.
- Southern Gulf vs Andaman coast: Gulf (Koh Samui) has rain Oct–Dec; Andaman (Phuket) has rain May–Oct. Thailand weather by month humidity often exceeds 80% in rainy months.
How does humidity and temperature feel across the year?
The combination of heat and moisture matters more than raw numbers. The “feels-like” temperature can be 3–5°C higher than the air temperature.
- Low humidity months: December–February, clear skies, comfortable for sightseeing.
- High humidity months: May–October, sticky air even when it isn’t raining.
- Northern mountains (Chiang Mai): Cooler nights; January lows around 15°C; April can hit 40°C.
- Southern islands: Fairly constant 27–32°C year-round; thailand weather by month fahrenheit equivalent is 80–90°F.
When is the best month to visit Thailand for good weather?
November to February offers the most comfortable temperatures, low humidity and minimal rain across most of the country. February is especially popular for beach weather and northern treks.
Does Thailand have a monsoon season?
Yes, the southwest monsoon brings heavy rain from May to October. The northeast monsoon (November–February) brings cooler, drier air. The Andaman coast sees more rain than the Gulf during the southwest monsoon.
Is Thailand hot all year round?
Yes, but “hot” varies. Temperatures rarely drop below 20°C in lowlands. The cool season is warm, not hot, while March–May can feel oppressive, especially with high humidity. Check the live forecast above for the next few days.
Sources
For more UK-focused weather planning, see our UK weather hub or explore 10 day weather forecast UK.