Thailand im Januar: Wetter, Was erwartet dich & Wohin

In Zahlen

Chiang Mai averages 22°C in January: daytime highs around 28°C, nights dipping to 14–17°C. Just 10mm of rain across 1–2 wet days, and humidity sits at its yearly low of around 60%.

The only month it ever feels properly cold in Thailand. Locals wear puffer jackets at dawn; in the mountains around Pai and Mae Hong Son, valley temperatures can drop below 10°C before sunrise.

In Zahlen

The Korat plateau averages 24°C, with daytime highs around 30°C and cool nights of 15–18°C. Rainfall is negligible, about 5mm spread over 1 wet day for the whole month.

Dry, dusty, and quiet. Khao Yai mornings are genuinely cold by Thai standards. You can see your breath at viewpoints before 7am.

In Zahlen

Bangkok averages 27°C: daytime highs around 32°C, nights around 22°C. Rainfall is minimal (about 10mm across 1–2 days) and humidity drops to around 55%, the most comfortable level of the year.

Bangkok at its most walkable. You can do an afternoon at Chatuchak Market or a temple loop without ending up soaked through.

In Zahlen

Phuket averages 28°C with consistently bright days. Around 35mm of rain across 3–4 wet days, most falling as brief overnight showers. Sea temperatures sit around 28°C.

Peak Andaman season. Long-tail boats run every morning, water visibility on Similan and Phi Phi diving hits 20–30m, and beach days are reliably sunny.

In Zahlen

Koh Samui averages 27°C but still sees around 55mm of rain across 6–8 wet days. The northeast monsoon is fading but not gone, so seas remain choppy.

Looks okay on paper, feels grey in practice. Mornings are often overcast, afternoon rain is common, and the swell makes long-tail trips to Koh Tao or Angthong dicey.