When to go
The Best Time to Visit Cologne
Month-by-month climate data for Cologne, Germany — daily highs and lows, rain days, and an honest verdict for every month of the year.
May–September, December. Long summer days on the Rhine; December brings the famous Christmas markets in the cathedral shadow.
Warmest in Cologne: Aug (25°C / 77°F) · Coolest: Jan (6°C / 43°F) · Wettest: Dec (~17 rain days)
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)
Cologne climate, month by month
January
6° / 2°C
~14 rain days
Tough
February
10° / 3°C
~15 rain days
Fair
March
12° / 3°C
~14 rain days
Fair
April
14° / 5°C
~12 rain days
Good
May
19° / 9°C
~14 rain days
Good
June
23° / 14°C
~12 rain days
Excellent
July
24° / 15°C
~14 rain days
Good
August
25° / 16°C
~12 rain days
Excellent
September
21° / 13°C
~11 rain days
Excellent
October
17° / 9°C
~15 rain days
Good
November
11° / 5°C
~13 rain days
Fair
December
7° / 3°C
~17 rain days
Tough
Plan around it
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