Photo by Ryan Le on Unsplash

Vietnam

Hanoi

Hoan Kiem Lake and the Old Quarter's street food, Ho Chi Minh's mausoleum, the Temple of Literature and Hoa Lo Prison, with Ha Long Bay and Trang An a day trip away.

Best time to visit Hanoi

Best months: Mar–Apr, Dec–Jan

• Jan

  Best time

  19° / 14°C · 23 mm rain · Moderate

  Cool, grey and drizzly; trips and prices rise ahead of Tet in late Jan or Feb.

• Feb

  Good

  20° / 16°C · 25 mm rain · Busy

  Tet (Lunar New Year) usually falls here; many shops close for days and transport sells out.

• Mar

  Best time

  23° / 18°C · 47 mm rain · Moderate

  Mild and humid with misty drizzle; pleasant for walking the Old Quarter.

• Apr

  Best time

  28° / 22°C · 92 mm rain · Moderate

  Warm spring weather; the 30 Apr–1 May holidays bring domestic crowds.

• May

  Rainy

  32° / 25°C · 185 mm rain · Moderate

  Hot, humid start to the wet season with afternoon storms.

• Jun

  Rainy

  33° / 26°C · 253 mm rain · Quiet

  Very hot and humid with heavy downpours.

• Jul

  Rainy

  33° / 27°C · 280 mm rain · Quiet

  Peak heat and rain; storms from typhoons in the region are possible.

• Aug

  Rainy

  33° / 26°C · 309 mm rain · Quiet

  Wettest month; plan indoor backups and expect street flooding.

• Sep

  Rainy

  32° / 25°C · 228 mm rain · Moderate

  Rain eases late in the month; 2 Sep National Day brings domestic travel.

• Oct

  Rainy

  29° / 23°C · 141 mm rain · Busy

  Autumn is one of the best times to visit: drier, warm and clear.

• Nov

  Good

  26° / 19°C · 67 mm rain · Busy

  Dry and comfortable; peak season for Hanoi and Ha Long Bay.

• Dec

  Best time

  22° / 16°C · 20 mm rain · Moderate

  Cool and dry; bring a jacket for evenings.

Typical averages, not a forecast. Weather: en.wikipedia.org.