Weather in Cologne in August

August in Cologne is warm outdoor weather. Days are long enough to be useful. Shade starts to matter at midday.

In Germany, this is how Cologne actually wears August, not how a country centroid would. Compared with July and January, August sits in the middle of Cologne's year.

Pack for Cologne in August, not for a brochure that was photographed in another season.

Cologne
Average temp
20°C

15–25°C

Rainfall
81 mm

Showers likely

Sunshine
6.3 h

hours per day

Wind
10 km/h

What to expect

Daytime

Warm days in Cologne in August. A hat starts to earn its keep at midday. Evenings are the comfortable part of the clock.

You can walk at more hours than in the fierce months. Still build in a pause when the sun is high. Nights are easy.

Rain

August is a wetter month in Cologne. Showers are part of the deal, not a spoiled surprise.

Waterproof shoes matter more than a rain plan for a beach, especially if a beach is not why you came. Build indoor hours into the afternoon.

Evening

Evenings are cooler. A layer helps after sunset.

What to pack

  • Rain jacket

  • A layer for cooler evenings

Where to stay in Cologne

Dates are a starting point for August.

All hotels in Cologne

Travel guides for Cologne

What to read before you book.

All travel guides in Cologne

Average weather in Cologne

TemperatureRainfall

Source: MeteostatPeriod: 1991-2020Checked: 28 Aug 2026265 places covered

Similar weather in August

Other destinations whose August averages sit close to this one.

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FAQs about Cologne

Climate averages for Cologne, 1991–2020.

The best time to visit Cologne is between May and October, the most comfortable stretch of the year on these averages.

July is the hottest month, with an average around 20°C.

August is the wettest month, with about 81 mm of rain.

No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.