Thailand Toolkit

Thailand Weather Planner

See the typical season, temperature, and rainfall for any region and month.

General pattern, not a forecast

These are typical seasonal patterns, not a weather forecast — actual conditions vary year to year. Note that the Gulf coast (Koh Samui, Koh Phangan) has an inverted rainy season compared to the rest of Thailand, peaking around October–December.

Cool

20-32°C

Rainfall: Low

How this is calculated

Your selected region and month are looked up against a static table of typical seasonal temperature ranges and rainfall levels for four Thai climate regions.

Frequently asked questions

Is this a weather forecast?

No — this shows typical seasonal patterns based on historical climate norms, not a forecast for any specific date. Check a live forecast closer to your travel dates for actual conditions.

Why does the Gulf coast have a different rainy season?

Koh Samui and Koh Phangan sit on the Gulf of Thailand side of the peninsula, which is affected by a different monsoon pattern than the rest of the country — their rainiest months are typically October to December, while most of Thailand's rainy season runs June to October.