CopenhagenPhoto: Alberto-g-rovi · CC BY 4.0Denmark · Europe
Best time to visit Copenhagen
Copenhagen has cool, changeable summers with very long days and cold, dark winters. May to August is the best time. The sea stays cool but is inviting in high summer.
Climate decision
Best travel months for Copenhagen
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Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Latest 5-year values 2021–2025
Average of the five most recent complete years compared with the 1991–2025 climate average.
March · Monthly precipitation
110.5 mm/month
1991–2025: 53.7 mm/month
+56.7 mm/month · higher
June · Wet days
9 days/month
1991–2025: 11.8 days/month
-2.8 days/month · lower
March · Mean daily maximum
6.8 °C
1991–2025: 5.5 °C
+1.4 °C · higher
August · Sea temperature
18 °C
1991–2025: 17.9 °C
+0 °C · similar
August: 0/155 days at or above 30 °C; highest single value 27.5 °C.
Five-year historical sample, not a weather forecast or long-term climate trend. Individual hot days can be far above the monthly mean.
Annual profile · Coast and sea
Copenhagen: the swimming season follows two curves
Average daily highs vary by 18 °C through the year, while the sea varies by 15.4 °C. Air and water temperature should therefore be considered separately.
The practical difference
The month with the highest daytime temperature and the month with the warmest sea need not define the same travel window. Rain and sunshine help resolve the trade-off.
Warmest sea
August · 17.9 °C
Highest average daily high
July and August · 20.6 °C
Fewest rainy days
April · 8.5
Most sunshine
June · 7.3 h
Month by month
Overall suitability per month. Tap a month for details.
All climate figures compared
The table is the complete accessible data view; the charts below highlight selected patterns.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Rain mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| January | 3 | -0 | 13 | 61 | 0.6 | 92 | 5.1 | 3 | 19 |
| February | 3 | -1 | 11 | 51 | 1.4 | 91 | 5.0 | 3 | 23 |
| March | 5 | 1 | 10 | 54 | 3.0 | 88 | 4.5 | 3 | 28 |
| April | 10 | 3 | 8 | 40 | 5.2 | 83 | 3.9 | 6 | 39 |
| May | 14 | 8 | 10 | 46 | 6.8 | 81 | 3.6 | 10 | 46 |
| June | 18 | 12 | 12 | 65 | 7.3 | 80 | 3.7 | 14 | 54 |
| July | 21 | 14 | 14 | 70 | 6.8 | 79 | 3.5 | 17 | 61 |
| August | 21 | 15 | 14 | 75 | 5.6 | 80 | 3.7 | 18 | 59 |
| September | 17 | 12 | 12 | 62 | 3.8 | 83 | 4.1 | 16 | 49 |
| October | 12 | 8 | 14 | 70 | 1.9 | 88 | 4.5 | 12 | 28 |
| November | 7 | 4 | 14 | 61 | 0.8 | 91 | 4.6 | 9 | 20 |
| December | 4 | 1 | 14 | 64 | 0.4 | 93 | 4.8 | 5 | 17 |
Climate through the year
Compare temperature, rainy days, sunshine and, for coastal destinations, sea temperature month by month.
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Where to stay in Copenhagen
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The number is the overall climate score, not a similarity score.
Frequently asked questions
When is the best time to visit Copenhagen?
The strongest climate months are July. Values are historical averages, not a forecast.
Which month has the highest average daily maximum temperature in Copenhagen?
Average daily maximum temperatures in Copenhagen are practically tied in July and August at around 21 °C.
When is the sea warmest at Copenhagen?
In August, at around 18 °C.