What to pack for Oslo, year-round

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

• January -0.4°C · 19 rain days · 20 items Heavy layers
• February 1.5°C · 16 rain days · 20 items Heavy layers
• March 5.1°C · 14 rain days · 18 items Heavy layers
• April 10.7°C · 13 rain days · 18 items Layered casual
• May 15.8°C · 17 rain days · 20 items Layered casual
• June 20.7°C · 17 rain days · 19 items Light + sun cover
• July 21.7°C · 21 rain days · 18 items Light + sun cover
• August 19.8°C · 19 rain days · 19 items Light + sun cover
• September 15.9°C · 17 rain days · 20 items Layered casual
• October 9.4°C · 19 rain days · 20 items Heavy layers
• November 3.9°C · 17 rain days · 20 items Heavy layers
• December 0.5°C · 17 rain days · 20 items Heavy layers