Hagianglooptourguide.com: Autumn (September to November): The Golden Harvest Rush
This golden autumn Ha Giang Loop weather offers the perfect balance of dry roads and crisp mountain air. With minimal rainfall and temperatures hovering around 15–23°C, it is widely considered the absolute peak season for international travelers.
After a long day of smooth riding, you can relax in the cool evening air of the Dong Van Old Quarter to enjoy hot local hotpots. It is also the perfect climate to complete the full outer circuit down to the pristine waterfalls of Du Gia.