Sumida in September
6.8out of 10
Possible, with caveats
Warm and comfortable: highs around 27°C. Frequent rain: about 13 rainy days.
27°CAvg high
21°CAvg low
13Rainy days (184 mm)
12:13 hDaylight
05:29Sunrise · 17:41 Sunset
Why this score
- Warm and comfortable: highs around 27°C
- Frequent rain: about 13 rainy days
- Rain varies a lot between years (±4.1 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 (±4.1 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 | 1°C | 68 mm | 6 | – | – | 6.1 |
| February | 10°C | 2°C | 66 mm | 8 | – | – | 6.0 |
| March | 13°C | 5°C | 109 mm | 12 | – | – | 6.0 |
| April | 18°C | 11°C | 113 mm | 11 | – | – | 6.8 |
| May | 23°C | 16°C | 129 mm | 11 | – | – | 7.3 |
| June | 25°C | 20°C | 160 mm | 14 | – | – | 6.8 |
| July | 29°C | 23°C | 147 mm | 13 | – | – | 7.0 |
| August | 31°C | 25°C | 111 mm | 11 | – | – | 7.0 |
| September | 27°C | 21°C | 184 mm | 13 | – | – | 6.8 |
| October | 22°C | 15°C | 206 mm | 12 | – | – | 6.8 |
| November | 16°C | 9°C | 89 mm | 9 | – | – | 6.9 |
| December | 12°C | 4°C | 58 mm | 7 | – | – | 6.5 |
Frequently asked questions
How hot is Sumida in September?
Daytime highs average 27°C and nights about 21°C.
When is the best time to visit Sumida?
The best months are May, July, August, November.