Yilan in September
6.1out of 10
Possible, with caveats
Warm and comfortable: highs around 27°C. Very wet: about 20 rainy days.
27°CAvg high
24°CAvg low
20Rainy days (330 mm)
12:08 hDaylight
05:43Sunrise · 17:51 Sunset
Why this score
- Warm and comfortable: highs around 27°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
How reliable is the forecast?
Rain in September varies a lot between years (±3.4 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 | 16°C | 13°C | 190 mm | 22 | – | – | 5.2 |
| February | 17°C | 13°C | 164 mm | 20 | – | – | 5.3 |
| March | 19°C | 15°C | 153 mm | 20 | – | – | 5.7 |
| April | 22°C | 18°C | 185 mm | 21 | – | – | 6.1 |
| May | 25°C | 21°C | 296 mm | 25 | – | – | 6.1 |
| June | 28°C | 24°C | 318 mm | 25 | – | – | 6.1 |
| July | 30°C | 25°C | 274 mm | 22 | – | – | 5.9 |
| August | 29°C | 25°C | 334 mm | 23 | – | – | 6.0 |
| September | 27°C | 24°C | 330 mm | 20 | – | – | 6.1 |
| October | 24°C | 21°C | 400 mm | 21 | – | – | 6.1 |
| November | 21°C | 18°C | 332 mm | 21 | – | – | 6.0 |
| December | 18°C | 14°C | 241 mm | 22 | – | – | 5.5 |
Frequently asked questions
How hot is Yilan in September?
Daytime highs average 27°C and nights about 24°C.
When is the best time to visit Yilan?
The best months are April, May, June, September.