Chiang Mai Weather Statistics

Chiang Mai has a tropical savanna climate with distinct wet and dry seasons. Located in northern Thailand's mountainous region, the city experiences cooler temperatures than much of the country, particularly at night and during the cool season. The weather is influenced by monsoon patterns, creating three distinct seasons: cool, hot, and wet.

Don't forget to check WhereWeather Website for weather statistics on your exact travel dates, for any city in the world. You can also compare different cities and dates side-by-side.

Temperature Overview

Average Daytime Temperature: 32°C (90°F)
Average Nighttime Temperature: 21°C (70°F)

Rainfall Statistics

Annual average daily rainfall: 3.8 mm (0.150 inches) per day
Rainiest month: August with around 8.5 mm (0.335 inches) per day
Driest month: January with around 0.2 mm (0.008 inches) per day
Average number of rainy days per year: 118 days

Monthly Weather Conditions

Seasonal Breakdown

November-February (Cool Season)

Highs: 29-32°C (84-90°F)
Lows: 15-19°C (59-66°F)
Rainy Days: 2-5 days per month
Average Precipitation: 0.9 mm/day
Cool nights and pleasant days with minimal rainfall

March-May (Hot Season)

Highs: 34-36°C (93-97°F)
Lows: 19-24°C (66-75°F)
Rainy Days: 5-14 days per month
Average Precipitation: 3.6 mm/day
Very hot days with increasing humidity and occasional thunderstorms

June-October (Wet Season)

Highs: 31-33°C (88-91°F)
Lows: 21-24°C (70-75°F)
Rainy Days: 11-18 days per month
Average Precipitation: 7.2 mm/day
Regular rainfall with moderate temperatures

Best Time to Visit

The best time to visit Chiang Mai is during the cool season (November to February) when temperatures are pleasant and rainfall is minimal. However, each season offers unique experiences:

November-February (Cool Season) brings the most comfortable weather with cool nights and warm days. This is peak tourist season, perfect for exploring temples, hiking in nearby mountains, and enjoying outdoor markets. The Yi Peng Lantern Festival in November and the Flower Festival in February are major highlights. December and January offer the coolest temperatures, ideal for outdoor activities.

March-May (Hot Season) sees the highest temperatures of the year. While it can be intensely hot during midday, this is when the famous Songkran (Thai New Year) water festival takes place in April, offering a fun way to cool off. Early morning and evening activities are recommended, and this is a great time to enjoy the city's many air-conditioned cafes and temples.

June-October (Wet Season) brings regular rainfall, but typically in predictable patterns with sunny mornings and afternoon showers. This is when the countryside is most lush and beautiful, perfect for visiting waterfalls and gardens. The rain rarely lasts all day, and this season offers lower tourist numbers and better hotel rates. The morning markets are particularly active, and the rain provides relief from the heat.

Before you go ahead and plan your next visit, make sure to check the weather forecast for your exact travel dates on WhereWeather Website. You can also compare different cities and dates side-by-side.