May weather in Helsinki, Finland
Averages from 155 days in May across 2020–2024.
Typical conditions
| Average high | 13.4°C |
|---|---|
| Average low | 5.5°C |
| Average mean | 9.7°C |
| Total precipitation | 255 mm |
| Rainy days | 76 |
| Average precipitation hours | 3.2 h |
| Average max wind speed | 21.3 km/h |
| Average sunshine | 12.9 h/day |
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