Copenhagen is warmest in August, averaging 21° by day and 15° at night. The wettest month is March with 112 mm, and the year brings about 841 mm in total.
Month by month
| Month | High | Low | Rain | Sea | Daylight | Good for |
|---|---|---|---|---|---|---|
| January | 4° | -0° | 78 mm | 4° | 7.4 h | Cool |
| February | 5° | -0° | 84 mm | 3° | 9.2 h | Cool |
| March | 7° | 1° | 112 mm | 4° | 11.4 h | Cool |
| April | 10° | 4° | 54 mm | 7° | 13.9 h | Cool |
| May | 15° | 8° | 40 mm | 11° | 16.0 h | Mild |
| June | 20° | 12° | 51 mm | 16° | 17.2 h | Sightseeing |
| July | 20° | 15° | 84 mm | 18° | 16.7 h | Sightseeing |
| August | 21° | 15° | 81 mm | 19° | 14.8 h | Sightseeing |
| September | 19° | 12° | 57 mm | 17° | 12.4 h | Sightseeing |
| October | 14° | 9° | 81 mm | 13° | 10.1 h | Mild |
| November | 8° | 5° | 51 mm | 9° | 7.9 h | Cool |
| December | 4° | 2° | 68 mm | 6° | 6.8 h | Cool |
High and low are average daily maximum and minimum, rain is typical monthly total, sea is the average surface temperature, daylight is the hours between sunrise and sunset mid-month. Climate normals from NASA POWER and NOAA MUR — averages, not promises.
When to go
Beach weather: No month in Copenhagen combines swimming warmth with dry skies.
Walking the city: June, July, August and September — highs of 19–21° and no more than 84 mm of rain a month.