Vietnam · 30-year monthly climate averages
Based on 30 years of climate data, the most comfortable months to visit Hanoi are February, March and December, when daytime temperatures are agreeable and rainfall is relatively low.
Hanoi sees its warmest weather in July, when daytime highs average around 33°C, and its coolest in January (around 20°C).
Annual precipitation totals roughly 1891mm — July is typically the wettest month (~327mm) and January the driest (~26mm).
A distinctly wetter period runs from April to October — worth planning around if you prefer dry days.
🟧 avg daytime high · 🟦 dashed: avg nighttime low · bars: monthly rainfall
Daily forecast highs vs the 30-year normal — last 60 days
Each bar is one day: orange above normal, blue below.
| Month | High / Low | Rainfall | Travel rating |
|---|---|---|---|
| January | 20° / 13°C | 26mm | 🌟 Great |
| February | 21° / 15°C | 29mm | 🌟 Great |
| March | 25° / 18°C | 55mm | 🌟 Great |
| April | 29° / 21°C | 121mm | 👍 Good |
| May | 31° / 24°C | 242mm | ⚠️ Challenging |
| June | 32° / 26°C | 283mm | ⚠️ Challenging |
| July | 33° / 26°C | 327mm | ⚠️ Challenging |
| August | 32° / 25°C | 322mm | ⚠️ Challenging |
| September | 30° / 24°C | 222mm | ⚠️ Challenging |
| October | 28° / 21°C | 166mm | 🤔 Fair |
| November | 25° / 17°C | 73mm | 🌟 Great |
| December | 21° / 14°C | 26mm | 🌟 Great |
January in Hanoi is pleasantly warm, with average daytime highs around 20°C (67°F) and nighttime lows near 13°C (56°F). Expect roughly 26mm of precipitation, with little rainfall.
🎒 What to pack — light layers · comfortable walking shoes
February in Hanoi is pleasantly warm, with average daytime highs around 21°C (71°F) and nighttime lows near 15°C (59°F). Expect roughly 29mm of precipitation, with little rainfall.
🎒 What to pack — light layers · comfortable walking shoes
March in Hanoi is pleasantly warm, with average daytime highs around 25°C (76°F) and nighttime lows near 18°C (64°F). Expect roughly 55mm of precipitation, with little rainfall.
🎒 What to pack — light layers · comfortable walking shoes
April in Hanoi is warm, with average daytime highs around 29°C (83°F) and nighttime lows near 21°C (71°F). Expect roughly 121mm of precipitation, and this is one of the wetter months.
🎒 What to pack — light summer clothing · sunscreen and sunglasses · compact umbrella or rain jacket
May in Hanoi is hot, with average daytime highs around 31°C (88°F) and nighttime lows near 24°C (75°F). Expect roughly 242mm of precipitation, and heavy rainfall is common — this is peak wet season territory.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle · compact umbrella or rain jacket
June in Hanoi is hot, with average daytime highs around 32°C (90°F) and nighttime lows near 26°C (78°F). Expect roughly 283mm of precipitation, and heavy rainfall is common — this is peak wet season territory.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle · compact umbrella or rain jacket
July in Hanoi is hot, with average daytime highs around 33°C (91°F) and nighttime lows near 26°C (79°F). Expect roughly 327mm of precipitation, and heavy rainfall is common — this is peak wet season territory.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle · compact umbrella or rain jacket
August in Hanoi is hot, with average daytime highs around 32°C (89°F) and nighttime lows near 25°C (78°F). Expect roughly 322mm of precipitation, and heavy rainfall is common — this is peak wet season territory.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle · compact umbrella or rain jacket
September in Hanoi is hot, with average daytime highs around 30°C (87°F) and nighttime lows near 24°C (75°F). Expect roughly 222mm of precipitation, and heavy rainfall is common — this is peak wet season territory.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle · compact umbrella or rain jacket
October in Hanoi is warm, with average daytime highs around 28°C (82°F) and nighttime lows near 21°C (70°F). Expect roughly 166mm of precipitation, and this is one of the wetter months.
🎒 What to pack — light summer clothing · sunscreen and sunglasses · compact umbrella or rain jacket
November in Hanoi is pleasantly warm, with average daytime highs around 25°C (76°F) and nighttime lows near 17°C (63°F). Expect roughly 73mm of precipitation, with a moderate amount of rain.
🎒 What to pack — light layers · comfortable walking shoes
December in Hanoi is pleasantly warm, with average daytime highs around 21°C (70°F) and nighttime lows near 14°C (57°F). Expect roughly 26mm of precipitation, with little rainfall.
🎒 What to pack — light layers · comfortable walking shoes