Gdańsk · AutumnMonth summary
Gdańsk weather in September
✅ Good
🌡️ Temperature min / max
12°C – 19°C
🌧 Rainy days
33% of days
☀️ Sunshine
10.4h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.3/10
📅 📅 Best month
June (7.8/10)
Quick decision
Should you visit Gdańsk in September?
✅ Good
✅ Yes if: you want to explore the city on foot without suffering from heat.
❌ No if: you're looking for a beach destination — water and air are still cool.
Our take: Favourable conditions in September (7.3/10). June scores higher but the gap is small.
By trip type
Gdańsk in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ⚠️ Possible
- 🏖️ Beach / swimming : ❌ Not recommended
- 💰 💰 Budget : 💸 Peak season
Local context
What to expect in September
🎯 Cultural sites less crowded than peak season — more enjoyable visits Autumn in Gdańsk is often underrated: 19°C, golden light and declining crowds. An interesting window. Expect rain on 33% of days — a light raincoat in the bag is recommended. Not the best window, but acceptable if dates are constrained. June (7.8/10) is significantly better if possible.
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All months for Gdańsk
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌨️ January | 0°C | 3°C | 43% | 1.7 | 2.4h | 1.9/10 |
| 🌦️ February | 0°C | 5°C | 40% | 1.6 | 6.0h | 3.6/10 |
| 🌫️ March | 1°C | 8°C | 32% | 1.1 | 8.1h | 4.6/10 |
| 🌫️ April | 4°C | 11°C | 30% | 1.1 | 12.0h | 7.0/10 |
| ⛅ May | 8°C | 17°C | 35% | 1.7 | 14.0h | 7.3/10 |
| 🌤️ June | 13°C | 21°C | 39% | 2.2 | 14.6h | 7.8/10 |
| 🌤️ July | 15°C | 22°C | 45% | 3.4 | 13.9h | 7.7/10 |
| 🌤️ August | 15°C | 22°C | 36% | 2.3 | 12.7h | 7.8/10 |
| 🌤️ September | 12°C | 19°C | 33% | 1.7 | 10.4h | 7.3/10 |
| ⛅ October | 8°C | 13°C | 38% | 1.9 | 7.0h | 4.9/10 |
| 🌦️ November | 4°C | 8°C | 35% | 1.7 | 3.5h | 3.9/10 |
| 🌨️ December | 1°C | 4°C | 39% | 1.6 | 1.6h | 1.9/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In September, Gdańsk averages 19°C, 33% rainy days and 10.4h of sunshine per day. Overall weather score: 7.3/10.
See methodology →
Comparison
September vs June (best month)
The best month is June (score 7.8/10). Difference:
- 🌡️ Max temperature : +2°C
- 🌧 Rainy days : +6%
- ☀️ Sunshine : +4.2h/day
FAQ
FAQ — Gdańsk in September
Is September a good time to visit Gdańsk?
September is an acceptable time for Gdańsk (score 7.3/10). Conditions are decent but not optimal — consider June (7.8/10) if possible.
What to do in Gdańsk in September?
With 19°C max and 10.4h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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Activities & tours
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