Heyan in September
7.1out of 10
Possible, with caveats
Warm and comfortable: highs around 26°C. Frequent rain: about 13 rainy days.
26°CAvg high
19°CAvg low
13Rainy days (136 mm)
12:11 hDaylight
06:34Sunrise · 18:45 Sunset
Why this score
- Warm and comfortable: highs around 26°C
- Frequent rain: about 13 rainy days
What to wear and pack
- T-shirts and light layers
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in September varies a lot between years (±3.7 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 | 8°C | 2°C | 34 mm | 9 | – | – | 5.6 |
| February | 11°C | 4°C | 43 mm | 9 | – | – | 6.0 |
| March | 15°C | 7°C | 76 mm | 12 | – | – | 6.4 |
| April | 21°C | 12°C | 95 mm | 14 | – | – | 7.0 |
| May | 24°C | 17°C | 135 mm | 15 | – | – | 6.8 |
| June | 27°C | 20°C | 173 mm | 15 | – | – | 6.7 |
| July | 30°C | 23°C | 183 mm | 16 | – | – | 6.1 |
| August | 31°C | 22°C | 142 mm | 14 | – | – | 6.5 |
| September | 26°C | 19°C | 136 mm | 13 | – | – | 7.1 |
| October | 20°C | 13°C | 114 mm | 13 | – | – | 6.9 |
| November | 15°C | 8°C | 68 mm | 10 | – | – | 6.6 |
| December | 9°C | 3°C | 35 mm | 8 | – | – | 6.0 |
Frequently asked questions
How hot is Heyan in September?
Daytime highs average 26°C and nights about 19°C.
When is the best time to visit Heyan?
The best months are September, April, October, May.