Vietnam
Best time to visit Hanoi
Based on 0 years of real historical weather data (2015–2026). Sunshine hours, rainfall, and temperature — week by week.
Planning a trip, an event, or a party in Hanoi? Here's what to expect. Summers here run warm, and winters are cooler. For the best odds of good weather, aim for December, February and November. Days run warm, with up to 5.3h of sunshine and mostly dry. If you can be flexible, steer clear of May and June — that's when conditions are least reliable.
Month-by-month weather
Hanoi in January runs warm, averaging 20.9°C.
Hanoi in February runs warm, averaging 22.6°C.
Hanoi in March runs hot, averaging 25.5°C.
Hanoi in April runs hot, averaging 28.6°C.
Hanoi in May runs very hot, averaging 31.9°C.
Hanoi in June runs very hot, averaging 33.3°C.
Hanoi in July runs very hot, averaging 32.9°C.
Hanoi in August runs very hot, averaging 31.5°C.
Hanoi in September runs very hot, averaging 30.6°C.
Hanoi in October runs hot, averaging 28.3°C.
Hanoi in November runs hot, averaging 25.3°C.
Hanoi in December runs warm, averaging 21.3°C.
Frequently asked questions
What is the best time to visit Hanoi?
If you're planning a trip, wedding, or outdoor event in Hanoi, aim for December, February and November — Days run warm, with up to 5.3h of sunshine and mostly dry. This is based on 0 years of real historical weather data (2015–2026), not a single forecast.
What is the weather like in Hanoi in December?
If you visit Hanoi in December, expect warm days around 21.3°C You'll get around 5.3h of sunshine per day and 1.5mm of rain — mostly dry.
What is the hottest month in Hanoi?
June is typically the hottest month, running very hot — good to know if you're planning something outdoors and want to avoid the peak heat.
What is the driest month in Hanoi?
February is your safest bet if you want to avoid rain, averaging only 1.3mm per day. August is the wettest, at 14.2mm per day — worth planning around if you're hosting anything outdoors.
When should I avoid visiting Hanoi?
If you have flexibility on dates, May and June are worth avoiding — colder temperatures and more rainfall make them the least reliable months for a trip or event.
All weeks ranked by weather score
| Week | Dates | Midday temp | Range | Sun / day | Rain / day | Score |
|---|---|---|---|---|---|---|
| W49 | Dec 2–8 | 22.5°C | 12.3° → 25.6° | 6.6h | 1.9mm | 80 |
| W50 | Dec 9–15 | 21.4°C | 10.5° → 25.3° | 5.1h | 1.2mm | 80 |
| W48 | Nov 25–Dec 1 | 23.8°C | 14.8° → 27.1° | 6.1h | 0.9mm | 78 |
| W52 | Dec 23–29 | 21.2°C | 10.5° → 25.4° | 5.1h | 1.8mm | 76 |
| W1 | Jan 1–7 | 22.4°C | 13.4° → 24.6° | 4.1h | 1.1mm | 75 |
| W5 | Jan 29–Feb 4 | 20.2°C | 10.4° → 22.9° | 4.7h | 1.2mm | 75 |
| W8 | Feb 19–25 | 22.9°C | 12.5° → 26.9° | 4.4h | 1.1mm | 75 |
| W7 | Feb 12–18 | 22.3°C | 12.8° → 26.4° | 3.8h | 1.4mm | 74 |
| W51 | Dec 16–22 | 20.1°C | 11.6° → 23.6° | 4.3h | 1.1mm | 74 |
| W6 | Feb 5–11 | 21.9°C | 12.3° → 26.4° | 4.4h | 2.0mm | 73 |
| W3 | Jan 15–21 | 19.7°C | 9.9° → 23.5° | 3.6h | 1.0mm | 72 |
| W44 | Oct 28–Nov 3 | 26.8°C | 17.8° → 29.3° | 7.7h | 1.9mm | 72 |
| W4 | Jan 22–28 | 21.0°C | 9.7° → 24.1° | 5.2h | 2.8mm | 71 |
| W9 | Feb 26–Mar 3 | 25.6°C | 13.7° → 28.5° | 4.7h | 0.6mm | 71 |
| W47 | Nov 18–24 | 24.6°C | 15.8° → 27.9° | 6.2h | 2.6mm | 69 |
| W45 | Nov 4–10 | 26.3°C | 18° → 28.7° | 7.1h | 2.5mm | 67 |
| W46 | Nov 11–17 | 26.7°C | 18° → 28.9° | 7.2h | 2.8mm | 66 |
| W13 | Mar 25–31 | 25.9°C | 17.3° → 29.3° | 4.3h | 2.0mm | 62 |
| W16 | Apr 15–21 | 29.5°C | 18.1° → 33.3° | 7.5h | 2.4mm | 61 |
| W18 | Apr 29–May 5 | 31.6°C | 21.2° → 34.7° | 9.0h | 2.3mm | 61 |
| W10 | Mar 4–10 | 24.1°C | 14.4° → 29° | 3.1h | 2.9mm | 60 |
| W11 | Mar 11–17 | 25.1°C | 15.9° → 29.2° | 2.6h | 2.2mm | 59 |
| W43 | Oct 21–27 | 28.1°C | 19.4° → 30.2° | 8.1h | 4.1mm | 59 |
| W2 | Jan 8–14 | 20.4°C | 12.2° → 25.4° | 2.4h | 4.1mm | 57 |
| W12 | Mar 18–24 | 26.9°C | 16.3° → 30.9° | 4.7h | 2.9mm | 57 |
| W14 | Apr 1–7 | 28.3°C | 18.4° → 31.4° | 5.6h | 3.5mm | 54 |
| W15 | Apr 8–14 | 28.4°C | 18.3° → 32.1° | 5.5h | 3.2mm | 54 |
| W20 | May 13–19 | 32.0°C | 22.9° → 34.3° | 9.4h | 4.2mm | 52 |
| W41 | Oct 7–13 | 28.2°C | 20.9° → 30.9° | 7.3h | 5.4mm | 51 |
| W42 | Oct 14–20 | 27.6°C | 20.3° → 30.2° | 6.9h | 6.8mm | 49 |
| W40 | Sep 30–Oct 6 | 30.7°C | 22.9° → 32° | 8.9h | 6.5mm | 48 |
| W17 | Apr 22–28 | 28.3°C | 20.8° → 32.6° | 5.5h | 5.1mm | 46 |
| W23 | Jun 3–9 | 33.3°C | 25.2° → 36.1° | 9.3h | 6.2mm | 41 |
| W28 | Jul 8–14 | 32.8°C | 25.3° → 34.7° | 8.4h | 6.3mm | 40 |
| W22 | May 27–Jun 2 | 33.1°C | 24.3° → 35.1° | 9.1h | 7.8mm | 39 |
| W25 | Jun 17–23 | 33.2°C | 25.3° → 35.2° | 9.1h | 7.3mm | 38 |
| W38 | Sep 16–22 | 30.5°C | 23.3° → 32.2° | 8.6h | 11.3mm | 38 |
| W21 | May 20–26 | 31.9°C | 23.8° → 34.5° | 8.5h | 8.8mm | 37 |
| W39 | Sep 23–29 | 30.2°C | 23° → 32.3° | 7.6h | 12.4mm | 37 |
| W26 | Jun 24–30 | 33.2°C | 25.7° → 35.4° | 8.1h | 8.0mm | 35 |
| W29 | Jul 15–21 | 32.9°C | 25.4° → 34.9° | 8.5h | 8.8mm | 35 |
| W19 | May 6–12 | 30.9°C | 23° → 33.9° | 7.4h | 9.9mm | 34 |
| W27 | Jul 1–7 | 33.6°C | 25.4° → 35.5° | 9.3h | 9.8mm | 34 |
| W35 | Aug 26–Sep 1 | 31.4°C | 24.6° → 33.9° | 7.8h | 10.5mm | 33 |
| W36 | Sep 2–8 | 31.2°C | 24.6° → 33.1° | 7.7h | 9.6mm | 33 |
| W37 | Sep 9–15 | 30.4°C | 23.9° → 32.2° | 7.1h | 11.4mm | 33 |
| W24 | Jun 10–16 | 33.4°C | 25.3° → 35.2° | 8.0h | 8.8mm | 32 |
| W30 | Jul 22–28 | 32.4°C | 25.1° → 34.7° | 8.5h | 10.8mm | 32 |
| W32 | Aug 5–11 | 31.7°C | 24.8° → 34° | 8.1h | 11.8mm | 32 |
| W34 | Aug 19–25 | 31.7°C | 24.7° → 33.7° | 8.2h | 13.1mm | 32 |
| W33 | Aug 12–18 | 31.8°C | 24.9° → 34.4° | 7.2h | 14.4mm | 29 |
| W31 | Jul 29–Aug 4 | 30.8°C | 24.7° → 32.8° | 5.0h | 21.3mm | 25 |
Nail down the right dates for Hanoi
Compare individual weeks, see year-by-year variation, and download the data as Excel — everything you need to plan a trip, wedding, or event.
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