Mae Sai Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Mae Sai.
Climate overview of Mae Sai
Temperatures in Mae Sai, Chiang Rai Province, Thailand, shift moderately through the seasons. The warmest month is April at 35°C (95°F), and the coolest is January at 27°C (81°F).
The city receives considerable rainfall, with around 2303 mm (91 in) annually. July is the wettest month. It has distinct dry (December to February) and wet (May to September) seasons. March is the sunniest month, averaging 9.8 hours of sunshine per day.
Mae Sai Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mae Sai — and find the best time to visit.
Monthly Temperature in Mae Sai
In Mae Sai, seasonal changes bring about a moderate variation in temperatures. Typically, average maximum daytime temperatures range from a very warm 35°C (95°F) in April to a comfortable 27°C (81°F) in the coolest month, January.
Nights vary from 24°C (75°F) in April to around 13°C (55°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Mae Sai
Mae Sai has a notably wet climate with abundant precipitation, recording 2303 mm (91 in) of rainfall per year. The climate in Mae Sai shows significant variation throughout the year. Expect heavy rainfall in July, the wettest month, with an average of 460 mm (18 in) of precipitation over 22 rainy days.
In contrast, the driest month February offers drier and sunnier days, with around 19 mm (0.7 in) of rainfall over 2 rainy days. For more details, please visit our Mae Sai Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
Sunshine Hours in Mae Sai
For those who appreciate different seasons, Mae Sai serves as an ideal destination. Expect longer, more sun-filled days in March with an average of 9.8 hours of sunshine daily, and embrace the darker days in August, offering only 3.9 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Mae Sai by Month
The relative humidity is high throughout the year in Mae Sai.
The city experiences its highest humidity in August, reaching 84%. In March, the humidity drops to its lowest level at 62%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Mae Sai
It's smart to plan your activities during the cooler morning hours or take advantage of the refreshing evenings.
Note that May, June, July, August and September make up the rainy season, with heavier precipitation expected. Wondering where to travel based on your weather preferences? Our recommendation tool helps you find destinations with your ideal climate conditions. Use our weather planner to find your perfect destination.
Frequently asked questions about the climate in Mae Sai
What is the best time to visit Mae Sai?
January, November and December typically offer the most optimal weather in Mae Sai. In contrast, March, April, May, June, July, August and September tend to have less optimal conditions. Mae Sai has distinct dry (December to February) and wet (May to September) seasons.
What temperatures can I expect in Mae Sai?
Daytime highs range from 27°C (81°F) in January to 35°C (95°F) in April. Nighttime lows range from 13°C (55°F) to 24°C (75°F).
How much rain does Mae Sai get?
Annual rainfall is around 2303 mm (91 in). July is the wettest month with 460 mm (18 in), while February is the driest with 19 mm (0.7 in).
How sunny is Mae Sai?
Mae Sai receives around 2,555 hours of sunshine per year. March is the sunniest month with 295 hours, while August is the cloudiest with just 117 hours. Overall, Mae Sai enjoys abundant sunshine.
Mae Sai 3-Day Forecast
Mae Sai 3-Day Forecast
Mae Sai on the map
Mae Sai is highlighted — select any city to see its climate.
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