Köln (Cologne) weather by month & the best time to visit
Germany · city break · oceanic / maritime climate
The best time to visit Köln (Cologne) is September — its sunniest month (Sunshine Score 77/100), with June and July close behind. Köln (Cologne) averages about 1,545 hours of sunshine a year. Daytime highs around 21°C / 70°F and roughly 57 mm of rain in September.
When is the best time to visit Köln (Cologne)?
For sunshine, the best time to visit Köln (Cologne) is September, then June and July. The dullest month is January (0/100, 74 mm of rain). The full month-by-month picture is in the table below.
How sunny is Köln (Cologne)?
Köln (Cologne) isn't a sunny place by world standards: about 1,545 hours of sunshine a year. 77 Sunshine Score points separate September (77) from January (0), so the month you pick matters. It ranks #29 of 37 destinations in Germany for annual sunshine, below the national median of 1,563 hours. The year's 791 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | 4° / 39°F | -1° / 30°F | 74 mm | 0 |
| February | 0 | 6° / 43°F | -1° / 30°F | 62 mm | 1 |
| March | 13 | 10° / 50°F | 1° / 34°F | 59 mm | 2 |
| April | 46 | 15° / 59°F | 5° / 41°F | 44 mm | 3 |
| May | 69 | 19° / 66°F | 9° / 48°F | 64 mm | 4 |
| June | 75 | 23° / 73°F | 12° / 54°F | 68 mm | 5 |
| July | 74 | 25° / 77°F | 14° / 57°F | 75 mm | 5 |
| August | 73 | 25° / 77°F | 14° / 57°F | 79 mm | 4 |
| September | 77 | 21° / 70°F | 10° / 50°F | 57 mm | 3 |
| October | 44 | 15° / 59°F | 7° / 45°F | 61 mm | 2 |
| November | 6 | 9° / 48°F | 3° / 37°F | 71 mm | 1 |
| December | 0 | 5° / 41°F | 0° / 32°F | 77 mm | 0 |
Nearest destinations
Head-to-head
How Köln (Cologne) compares month by month: Köln (Cologne) vs Frankfurt am Main · Köln (Cologne) vs Düsseldorf · Köln (Cologne) vs Dortmund · Köln (Cologne) vs Luxembourg · all comparisons
Köln (Cologne): questions and answers
What kind of destination is Köln (Cologne)?
Köln (Cologne) is a city break in Germany with a oceanic / maritime climate.
How many hours of sunshine does Köln (Cologne) get a year?
Köln (Cologne) gets about 1,545 hours of sunshine a year, at its best around September.
When is the best time to visit Köln (Cologne)?
The sunniest time to visit Köln (Cologne) is September, when the Sunshine Score peaks at 77/100 (with June and July close behind). Expect daytime highs around 21°C / 70°F.
What is the least sunny month in Köln (Cologne)?
January is the least sunny month in Köln (Cologne), scoring 0/100 with about 74 mm of rain.
How strong is the sun in Köln (Cologne)?
The typical midday UV index in Köln (Cologne) peaks around 5 (moderate) in June, easing to about 0 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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