September weather in Surabaya, Indonesia
Averages from 150 days in September across 2020–2024.
Typical conditions
| Average high | 32.4°C |
|---|---|
| Average low | 24.3°C |
| Average mean | 28.6°C |
| Total precipitation | 71.1 mm |
| Rainy days | 36 |
| Average precipitation hours | 1.2 h |
| Average max wind speed | 22 km/h |
| Average sunshine | 11.1 h/day |
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