Copenhagen has a temperate oceanic climate (Cfb)—mild winters, cool summers, consistent precipitation.
| Season | Avg Temp | Daylight | Rain | Notes |
|---|---|---|---|---|
| Winter | Dec–Feb: 0–3°C (32–37°F) | 7–9 hrs | Moderate | Snow possible, rarely lasts. Hygge season. |
| Spring | Mar–May: 3–14°C (37–57°F) | 11–17 hrs | Increasing | Cherry blossoms (Apr), variable. |
| Summer | Jun–Aug: 14–21°C (57–70°F) | 17–18 hrs | Moderate | Occasional 25–30°C heatwaves. Best for outdoors. |
| Autumn | Sep–Nov: 14–5°C (57–41°F) | 10–8 hrs | Highest | Colorful parks, cultural season. |
Annual precipitation: ~570 mm (22 in). Wind frequent (westerlies). Gulf Stream moderates temps vs. latitude (55°N).