Yanai in September
7.1out of 10
Possible, with caveats
Warm and comfortable: highs around 26°C. Frequent rain: about 12 rainy days.
26°CAvg high
22°CAvg low
12Rainy days (172 mm)
12:12 hDaylight
06:00Sunrise · 18:12 Sunset
Why this score
- Warm and comfortable: highs around 26°C
- Frequent rain: about 12 rainy days
- Rain varies a lot between years (±4.2 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 (±4.2 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 | 9°C | 5°C | 60 mm | 8 | – | – | 5.9 |
| February | 10°C | 5°C | 76 mm | 8 | – | – | 6.0 |
| March | 12°C | 7°C | 122 mm | 10 | – | – | 6.0 |
| April | 16°C | 12°C | 148 mm | 10 | – | – | 6.5 |
| May | 20°C | 16°C | 163 mm | 10 | – | – | 7.1 |
| June | 23°C | 20°C | 258 mm | 14 | – | – | 6.4 |
| July | 27°C | 24°C | 235 mm | 14 | – | – | 6.5 |
| August | 29°C | 25°C | 143 mm | 12 | – | – | 7.2 |
| September | 26°C | 22°C | 172 mm | 12 | – | – | 7.1 |
| October | 22°C | 17°C | 117 mm | 8 | – | – | 7.9 |
| November | 17°C | 12°C | 75 mm | 8 | – | – | 7.2 |
| December | 11°C | 7°C | 68 mm | 9 | – | – | 6.2 |
Frequently asked questions
How hot is Yanai in September?
Daytime highs average 26°C and nights about 22°C.
When is the best time to visit Yanai?
The best months are October.