Muang Thai-Chiang Mai Marathon 2026
RunningChiang Mai, Thailand
The Muang Thai-Chiang Mai Marathon runs through the old city in northern Thailand's cool season, with a full, half and 10 km, plus the 3 km Smile Run and a kids' race.
Race categories
42 KM21 KM10 KM3 KM Smile Run3 KM Kids
Race morning
Dawn temperature in race week, the last 10 years
The average daily low across the week around race day. The dashed line is a typical Singapore dawn.
Source: Open-Meteo historical weather (ERA5). Singapore's typical dawn is its average daily low, 24°C (2021–2025).
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About this race
When is Muang Thai-Chiang Mai Marathon 2026?
Muang Thai-Chiang Mai Marathon 2026 is on Sunday 20 December 2026, in Chiang Mai, Thailand.
How do I enter?
Entry runs through the organiser. Start at the official site and check it for registration dates, prices and any ballot.