- Climate Type
- Baltic maritime—cold winters, mild summers
Updated July 2026 · Sources cited: climatestotravel.com, weather-and-climate.com
Good to know
Good to Know
- Peak summer (July–August) combines warmth with the year's highest rainfall—afternoon storms common. August generally sunnier than July.
- May–June and September offer warm weather with smaller crowds; good for active travel before peak season or after it thins.
- Winter (Dec–Feb) is grey and very cold; budget travelers find shocking deals and quiet streets, but Christmas markets (December) attract visitors.
- Spring (March–April) is unstable—snow, cold snaps, and thawing mixed together. Late May is when the city truly opens up.
- Baltic Sea location keeps winters milder than inland Poland but summers cooler; frequent wind is normal.
- Autumn foliage turns photogenic in October, but bring a proper coat as evenings get cold.
Rainfall
- Annual Mm
- 722
- Distribution
- Moderate, spread throughout year—no pronounced dry or rainy season
- Driest Month
- February (44 mm)
- Annual Inches
- 28
- Wettest Month
- July (92 mm)
Snowfall
- Occurs
- Yes
- Peak Snowfall Mm
- 128
- Peak Snowfall Month
- January
- Note
- Frequent but not abundant; snowfall decreases markedly by April
Heaviest Months
- December
- January
- February
Best Months
Best Months
- June
- July
- August
Climate Type
Baltic maritime—cold winters, mild summers
Worst Months
Worst Months
- November
- December
- January
- February
- March
Practical Notes
- Wind
- Windy days common year-round due to Baltic location
- Daylight
- Longest days in June (~17h); shortest in December (~7.5h)
- Sea Temperature Range
- 2–3°C (37°F) (winter) to 17–19°C (66°F) (August); generally cold for swimming
Temperature Low
- Season
- Winter (January–February)
- Low Celsius
- -2
- High Celsius
- 3
- Low Fahrenheit
- 28
- High Fahrenheit
- 37
- Note
- January coldest at -1.3°C (30°F) average; can drop to -20°C (-4°F) in extreme cold waves
Shoulder Seasons
Autumn
- Months
- September–October
- Note
- Pleasant walking weather; crowds thin after August; October slightly rainier
Spring
- Months
- April–May
- Note
- Gradual warming; late May marks tourist season start
Temperature Peak
- Season
- Summer (July–August)
- Low Celsius
- 14
- High Celsius
- 23
- Low Fahrenheit
- 57
- High Fahrenheit
- 73
- Note
- Warmest month is July averaging 17–18°C (64°F), August peaks at 23°C (73°F) daytime
AI-generated estimateData refreshed July 2026
Sources cited for this category
These are the sources cited in this climate & weather research for this city. Individual figures may not each trace to one of them.
More About Gdańsk
Data last updated July 2026 · Verify anything important.