Best Full Marathons in Southeast Asia
Last updated July 31, 2026
Southeast Asia's marathon season clusters hard into the cooler months: the calendar thins through the middle of the year, then fills sharply from August onward as organisers move away from the worst of the heat. What you're choosing between spans city centre races through Manila, Bangkok and Kuala Lumpur, island courses in Bohol and Phuket, and provincial events that draw a few hundred runners. Most pair the 42.195km distance with shorter legs at the same start line, so a marathon weekend is usually a full-distance event rather than a single race.
- 1AUG
- 2AUG
- 2AUGBintulu Marathon 2026
Bintulu, Sarawak, Malaysia
Full Marathon (42.2km) Half Marathon (21.1km)Closed Details → - 2AUGNational MILO Marathon 2026 – Davao Leg
Davao City, Philippines
Full Marathon (42.2km) Half Marathon (21.1km) 10K 5KOpen Details → - 2AUG
- 2AUG
- 8AUGDili International Marathon 2026
Dili, Timor-Leste
Full Marathon (42.2km) Half Marathon (21.1km) 10K 5KOpen Details → - 9AUGBekasi Marathon 2026
Bekasi, Jawa Barat, Indonesia
Full Marathon (42.2km) Half Marathon (21.1km) 10K 5K - 9AUGBTN UI Green Marathon 2026
Depok, Jawa Barat, Indonesia
Full Marathon (42.2km) Half Marathon (21.1km) 10K 5KOpen Details → - 9AUGBulacan Marathon 2026
Pulilan, Bulacan, Philippines
Full Marathon (42.2km) Half Marathon (21.1km) 10K 5KOpen Details →
Frequently asked questions
When is the best time of year to run a marathon in Southeast Asia?
The season concentrates between August and February, when humidity eases and organisers can schedule safer conditions. Many events still flag off between 3am and 5am to finish before the heat builds. March through July is much quieter across the region, so a mid-year trip offers far fewer options.
How hot are marathons in Southeast Asia?
Expect heat and humidity well above what most temperate-climate runners train in, even at dawn. Start times of 4am are common precisely because of this. Plan for a slower target than your home-course pace, and treat hydration and salt as part of the race strategy rather than an afterthought.