Hanoi Weather in August

August weather

August in Hanoi is hot, sticky and very wet. Highs reach 31°C, with humidity at 86%, and rain falls on 24 days. Showers can interrupt walks, while cloudy skies and little daily sunshine make long outdoor plans less appealing.

Keep the Old Quarter and Hoan Kiem Lake for breaks between showers, rather than counting on a full day outside. The Vietnam Women's Museum and the Temple of Literature give you indoor options when rain sets in. If you're hoping to hike or spend hours sightseeing on foot, this isn't an easy month.

Events and crowds

August 19 marks the anniversary of the August Revolution, with commemorations in Vietnam. It's a meaningful date, though it's not a large tourist festival to build your whole trip around.

August is generally quieter and cheaper than Hanoi's more comfortable high season from December to February. Rain and heat put off some visitors, so you'll often find fewer crowds than in the cooler months. If you hate crowds, this can suit you, as long as you're happy to work around the weather.

Make the rain work

Rain can arrive suddenly, and streets in the Old Quarter may be awkward to cross when water pools. Keep a nearby indoor stop in mind instead of trying to press on through a downpour.

A practical local move: duck into the Vietnam Women's Museum, near Hoan Kiem Lake, then return to the lake when the rain eases. Travelling with kids? That short switch from a museum visit to a lakeside stroll is easier than getting caught far from shelter. Don't expect August to feel like Hanoi's dry, cool winter; September is still wet, but usually less rainy.