The Halong Bay Heritage Marathon 2025 stands out as Vietnam's premier marathon, distinguished by its World Athletics Label Road Race designation. This elite status underscores the race’s reputation as one of the world’s most coveted marathons, praised by Runner’s World UK for offering a breathtakingly beautiful course among the UNESCO-recognized Ha Long Bay landscapes. Set in November, runners can expect ideal weather conditions that enhance performance and comfort throughout the 42-kilometer journey. The flat and fast route offers minimal elevation changes, making it an excellent venue for athletes seeking to achieve personal bests or competitive results. In previous years, this course has consistently produced impressive race times. The event drew a diverse crowd of over 14,000 runners in 2025, with nearly one-fifth coming from abroad representing more than seventy nations. Among the notable participants was Olympic silver medalist Lee Bong-ju, adding to the international allure and prestige of this annual gathering. Runners will traverse scenic routes that highlight Ha Long Bay’s natural splendor, providing a unique blend of athletic challenge and cultural immersion. The race day atmosphere is vibrant with enthusiastic supporters lining the streets, creating an energizing environment for all competitors. The Halong Bay Heritage Marathon 2025 invites runners to experience not just a marathon, but a celebration of Vietnam’s natural beauty and rich heritage, making it a must-attend event for serious athletes and travel enthusiasts alike.
Races Offered
10KM
Nov 22, 2026
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Distance —
10K
terrain
Type —
Running
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143 days remaining
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$42.18
21KM
Nov 22, 2026
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Distance —
21.1K
terrain
Type —
Running
timer
143 days remaining
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$50.16
42KM
Nov 22, 2026
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Distance —
42.2K
terrain
Type —
Running
timer
143 days remaining
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$58.15
5KM
Nov 22, 2026
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Distance —
5K
terrain
Type —
Running
timer
143 days remaining
sell
$27.36
Weather History
These values represent the 3-year monthly averages for November in Hạ Long.
thermostatTemperature
19.3° / 25.6°
wb_sunnyFeels like
19.2° / 25.6°
light_mode
Avg sunshine hours
8h 52m
water_drop
Avg rainfall
1.1 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
11.1 km/h (Light breeze)
opacity
Sweat loss rate
High
terrain
Course conditions
Hard and dry surface
sunny
Max UV Index
Low (2.4)
humidity_mid
Humidity
69.7%
wb_twilight
Sunrise
06:01
nightlight
Sunset
17:10
About Hạ Long
Learn more about the host city, Hạ Long.
Hạ Long is a former first-class provincial city and capital city of Quảng Ninh province, Vietnam. It was found in 1993, when the old capital, Hòn Gai, was merged with Bãi Cháy, the main tourist area. The city mainly lies on Hạ Long Bay, and is located at about 178 km (111 mi) east of Hà Nội. The city's population in 2019 was 270,054.
