Gdansk Weather in September
17.6°C high · 9.5°C low · 68 mm rain · 4.7h sun
Sep is a warm month in Gdansk — not peak season, but a good time to avoid crowds.
September at a glance
| Metric | Value |
|---|---|
| Average high | 17.6°C |
| Average low | 9.5°C |
| Rainfall | 68 mm |
| Sunshine | 4.7 hours/day |
| Daylight | 12.4 hours |
What to pack in September
Pack a jacket and layers for Gdansk in September.
Gdansk weather by month
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Frequently asked questions
What is the weather in Gdansk in September?
Highs of 17.6°C and lows of 9.5°C, with about 68 mm of rain and 4.7 hours of sunshine per day.
Is September a good time to visit Gdansk?
Sep is a warm month in Gdansk — not peak season, but a good time to avoid crowds.
What to do in Gdansk · Best time to visit Gdansk
Climate data: Open-Meteo Historical (ERA5), 1991–2020. CC BY 4.0.