Verdict: Good month
Cologne Weather in May
May hits the sweet spot in Cologne — highs around 19°C (66°F), ideal for a full day on foot. Expect showers on roughly 14 days of the month — rarely trip-ruining, worth planning around. Overall, May is a solid month to visit Cologne.
Average high
19°C / 66°F
Average low
9°C / 48°F
Rain days
~14
Precipitation
73 mm
What to pack for Cologne in May
- Layers — t-shirts under a light jacket or sweater
- Rain gear is non-negotiable — expect rain on roughly 14 days
- Comfortable walking shoes — every guide on this site assumes you'll use them
May against the rest of the year
Warmest in Cologne: Aug (25°C / 77°F) · Coolest: Jan (6°C / 43°F) · Wettest: Dec (~17 rain days)
6°
2°
Jan
10°
3°
Feb
12°
3°
Mar
14°
5°
Apr
19°
9°
May
23°
14°
Jun
24°
15°
Jul
25°
16°
Aug
21°
13°
Sep
17°
9°
Oct
11°
5°
Nov
7°
3°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)