Haikou in May
6.4out of 10
Possible, with caveats
Warm and comfortable: highs around 30°C. Very wet: about 18 rainy days.
30°CAvg high
26°CAvg low
18Rainy days (123 mm)
12:57 hDaylight
06:06Sunrise · 19:03 Sunset
Why this score
- Warm and comfortable: highs around 30°C
- Very wet: about 18 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 (±3.5 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 | 20°C | 17°C | 30 mm | 6 | – | – | 7.9 |
| February | 21°C | 18°C | 31 mm | 7 | – | – | 8.1 |
| March | 24°C | 20°C | 35 mm | 7 | – | – | 8.1 |
| April | 27°C | 23°C | 70 mm | 11 | – | – | 7.6 |
| May | 30°C | 26°C | 123 mm | 18 | – | – | 6.4 |
| June | 31°C | 27°C | 148 mm | 17 | – | – | 5.9 |
| July | 31°C | 27°C | 171 mm | 17 | – | – | 5.8 |
| August | 30°C | 27°C | 229 mm | 21 | – | – | 5.7 |
| September | 29°C | 26°C | 218 mm | 19 | – | – | 6.0 |
| October | 27°C | 24°C | 160 mm | 13 | – | – | 7.0 |
| November | 25°C | 22°C | 43 mm | 8 | – | – | 8.1 |
| December | 21°C | 19°C | 35 mm | 6 | – | – | 8.2 |
Frequently asked questions
How hot is Haikou in May?
Daytime highs average 30°C and nights about 26°C.
When is the best time to visit Haikou?
The best months are December, February, March, November.