Chiang Rai Weather in December
Chiang Rai in December sees high daytime temperatures of 28°C (82°F) and nighttime lows of 16°C (61°F). Low rainfall is typical, with around 27 mm (1.1 in) for the month.
Rainfall in Chiang Rai in December
Historically, December sees about 2 days of rain, with a monthly average of 27 mm (1.1 in). When rain does fall this month, it tends to come down hard. The low number of rain days makes each shower more significant.
Temperature in Chiang Rai in December
Chiang Rai in December is worth a visit. The temperature is perfect, with 28°C (82°F) during the day and 16°C (61°F) at night. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 16°C (61°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping. Experience the cooler side of the year in this month, yet it remains pleasantly warm.
Sunshine in Chiang Rai in December
The days are predominantly sunny, with an estimated total of around 253 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.Our weather planner can help you find worldwide destinations with pleasant weather during this period. December typically offers the best weather for Chiang Rai.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Thailand, check out our Chiang Rai's climate page.
Chiang Rai Temperature in December
Min Temperature
16°C (61°F)
Max Temperature
28°C (82°F)
Chance of Rain
8%
Precipitation
27 mm (1.1 in)
Rainy days
2 days
Humidity
77%
Sunshine
253 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Chiang Rai typically stay consistent throughout December, with daily highs averaging around 28°C (82°F). Nights are pleasant, with lows typically ranging from 13°C (55°F) to 16°C (61°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Chiang Rai in December
Browse day-by-day weather records for Chiang Rai spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Chiang Rai historical weather extremes in December
The extremes listed below come from historical weather data collected in Chiang Rai from 1976 through 2025.
- On December 21, 2007, temperatures climbed to 33°C (91°F), marking the warmest December day on record.
- The lowest daytime temperature in December was 17°C (63°F), recorded on December 24, 1992.
- The lowest overnight temperature recorded in December was 2°C (36°F) (December 25, 1999).
Best Places in Thailand in December
Find out more about the weather in Thailand and which places have the best travel conditions in this month. See all of Thailand in December →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Chiang Rai in December
Warm temperatures in December make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Pack a light rain jacket or compact umbrella for occasional showers. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Chiang Rai in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Thailand, check out our Chiang Rai's climate page.
Temperature Rainfall Sunshine Humidity
See the full Chiang Rai climate overview or explore weather in Thailand.
