What to pack for Helsinki, year-round

Helsinki has 12 distinct packing realities. Pick the month you're traveling — each opens a full data-driven list:

• January -3°C · 17 rain days · 22 items Heavy layers
• February -3°C · 15 rain days · 20 items Heavy layers
• March 1°C · 12 rain days · 20 items Heavy layers
• April 8°C · 11 rain days · 19 items Heavy layers
• May 15°C · 11 rain days · 18 items Layered casual
• June 19°C · 12 rain days · 18 items Light + sun cover
• July 22°C · 12 rain days · 16 items Light + sun cover
• August 20°C · 13 rain days · 16 items Light + sun cover
• September 15°C · 13 rain days · 18 items Layered casual
• October 8°C · 15 rain days · 18 items Heavy layers
• November 3°C · 16 rain days · 22 items Heavy layers
• December -1°C · 17 rain days · 22 items Heavy layers