Haimen in May
6.3out of 10
Possible, with caveats
Warm and comfortable: highs around 28°C. Very wet: about 17 rainy days.
28°CAvg high
23°CAvg low
17Rainy days (189 mm)
13:07 hDaylight
05:36Sunrise · 18:43 Sunset
Why this score
- Warm and comfortable: highs around 28°C
- Very wet: about 17 rainy days
- Rain varies a lot between years (±4.4 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 (±4.4 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 | 18°C | 12°C | 31 mm | 5 | – | – | 7.9 |
| February | 19°C | 13°C | 43 mm | 7 | – | – | 7.6 |
| March | 21°C | 16°C | 63 mm | 9 | – | – | 7.7 |
| April | 25°C | 20°C | 108 mm | 12 | – | – | 7.4 |
| May | 28°C | 23°C | 189 mm | 17 | – | – | 6.3 |
| June | 30°C | 26°C | 246 mm | 22 | – | – | 5.7 |
| July | 31°C | 27°C | 210 mm | 20 | – | – | 5.4 |
| August | 31°C | 26°C | 261 mm | 22 | – | – | 5.5 |
| September | 30°C | 25°C | 164 mm | 15 | – | – | 6.3 |
| October | 28°C | 22°C | 53 mm | 5 | – | – | 8.4 |
| November | 24°C | 18°C | 54 mm | 6 | – | – | 8.4 |
| December | 20°C | 14°C | 39 mm | 5 | – | – | 8.2 |
Frequently asked questions
How hot is Haimen in May?
Daytime highs average 28°C and nights about 23°C.
When is the best time to visit Haimen?
The best months are October, November, December, January.