Last 7 days
Today
30° / 25° High / Low (°C)
98% Humidity
100% Rain probability
Thunderstorm Condition
~20h Rain duration
What this means
In Hanoi on 6 Aug 2026, rain is expected: 100% chance, up to 11.9 mm forecast (source: Open-Meteo).
A thunderstorm is expected today for around 20 hours — 100% probability, up to 11.9mm forecast. An umbrella is the right call.
Rain season
Hanoi has two distinct wet seasons: a long hot monsoon (May–October) and a cool drizzly winter (November–March) fed by the northeast monsoon. Typhoons from the South China Sea can bring extreme rain August–October. Annual totals reach around 1,700mm. The cool, damp 'crachin' drizzle in winter is a defining feature of northern Vietnam's climate.
Elsewhere in Vietnam