Hạ Long in May
5.9out of 10
Possible, with caveats
Warm and comfortable: highs around 30°C. Very wet: about 20 rainy days.
30°CAvg high
25°CAvg low
20Rainy days (220 mm)
13:00 hDaylight
05:18Sunrise · 18:18 Sunset
Why this score
- Warm and comfortable: highs around 30°C
- Very wet: about 20 rainy days
What to wear and pack
- T-shirts and light layers
- Shorts or a light skirt
- Rain jacket or compact umbrella
- Sunscreen, sunglasses and a hat
How reliable is the forecast?
Rain in May varies a lot between years (±3.8 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 19°C | 14°C | 34 mm | 7 | – | – | 7.7 |
| February | 20°C | 16°C | 21 mm | 6 | – | – | 8.0 |
| March | 22°C | 18°C | 43 mm | 9 | – | – | 7.9 |
| April | 26°C | 22°C | 70 mm | 12 | – | – | 7.5 |
| May | 30°C | 25°C | 220 mm | 20 | – | – | 5.9 |
| June | 31°C | 27°C | 269 mm | 23 | – | – | 5.4 |
| July | 31°C | 27°C | 303 mm | 24 | – | – | 5.5 |
| August | 31°C | 26°C | 381 mm | 26 | – | – | 5.5 |
| September | 30°C | 25°C | 239 mm | 20 | – | – | 5.7 |
| October | 29°C | 22°C | 104 mm | 12 | – | – | 7.4 |
| November | 25°C | 19°C | 51 mm | 8 | – | – | 8.0 |
| December | 21°C | 15°C | 31 mm | 6 | – | – | 8.1 |
Frequently asked questions
How hot is Hạ Long in May?
Daytime highs average 30°C and nights about 25°C.
When is the best time to visit Hạ Long?
The best months are December, February, November, March.