Chiang Rai weather
Our guide to the weather in Chiang Rai during December
Chiang Rai is a vibrant city in northern Thailand, offering a unique blend of cultural attractions and outdoor activities. December is a great time to explore the city and its surroundings, as temperatures are cooler and rainfall is minimal. We've looked at the most up-to-date weather data for Chiang Rai, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Chiang Rai weather in December.
How warm is it in Chiang Rai during December?
December is typically the coolest month in Chiang Rai, although we use the term cool in a relative sense! Expect heat, with the temperature hitting about 29℃ during the day, falling away to a balmy 15℃ at night.The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.
Does it rain in Chiang Rai during December?
On average, in December you'll see rain on just one day in the month. In other words, you shouldn't see any of the wet stuff. You're not likely to see a thunderstorm during your trip.
Is it windy in Chiang Rai during December?
No - there is very light air movement in December so conditions should be calm with light breezes at times.
Weather in Chiang Rai
Our month-by-month guide to the weather and climate in Chiang Rai
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December