Cologne is 2.9°C (5.2°F) warmer by day, Cologne has 10.1°C (18.2°F) warmer nights, Cologne gets 298 mm (11.7 in) more rain a year.
Calgary is at its warmest in July and coolest in January, while Cologne peaks in August and bottoms out in January. Month for month, Cologne is the warmer of the two in 12 of 12 months.
Cologne is the wetter of the two, collecting 822 mm (32.4 in) of rain a year against 524 mm (20.6 in) in Calgary. The most comfortable time to visit is June, July and August in Calgary and June, July and August in Cologne.
| Calgary | Metric | Cologne |
|---|---|---|
| 🌡️ Temperature | ||
| 18.2°C | 🌡️Average daytime high | 21.1°C |
| -10.1°C | 🌙Average nighttime low | 0°C |
| July | 🔥Hottest month | August |
| January | ❄️Coldest month | January |
| 🌧️ Rain | ||
| 524 mm | 🌧️Annual rainfall | 822 mm |
| June | ☔Wettest month | December |
| January | 🏜️Driest month | April |
| 💨 Climate | ||
| 71% | 💧Average humidity | 82% |
| 1.3 m/s | 💨Average wind speed | 3 m/s |
Overnight, Calgary typically falls to around -10.1°C (13.8°F) while Cologne settles near 0°C (32°F).
Calgary is hottest in July and coldest in January, whereas Cologne peaks in August and is coolest in January.
Calgary sees the most rain in June and the least in January; Cologne is wettest in December and driest in April.
Cologne feels the more humid of the two, averaging 82% relative humidity against 71%.
For Cologne, the pick of the year is June, July and August.
Month by month, here is the coldest night, the average day and the hottest afternoon each city can expect. Switch Compare to read rainfall, humidity, wind or solar instead, and Period to move between the long-term 45-year average and any single year — the shading is a quick warm-to-cool guide.
| Month | Calgary | Cologne | ||||
|---|---|---|---|---|---|---|
| Min | Avg | Max | Min | Avg | Max | |
| January | -25.1 | -10.1❄️ | 4.9 | -8.2 | 1.1❄️ | 10.5 |
| February | -22.7 | -7.3 | 8.1 | -7.4 | 2.2 | 11.9 |
| March | -17.5 | -2.2 | 13.2 | -4 | 6.5 | 16.9 |
| April | -9.4 | 5.1 | 19.5 | -2.2 | 9.6 | 21.4 |
| May | -4 | 10.4 | 24.9 | 2.1 | 13.7 | 25.2 |
| June | 1.5 | 14.2 | 26.8 | 6.1 | 17.7 | 29.2 |
| July | 4.8 | 17.5🔥 | 30.1 | 8.9 | 20.2🔥 | 31.6 |
| August | 3.4 | 16.7 | 30 | 8.6 | 20.1 | 31.7 |
| September | -2.6 | 12.1 | 26.8 | 5.4 | 16.2 | 27 |
| October | -9 | 5.5 | 20.1 | 0.6 | 11.2 | 21.7 |
| November | -17.2 | -3.7 | 9.8 | -3.2 | 6.1 | 15.3 |
| December | -23.3 | -9.7 | 4 | -6.8 | 2.2 | 11.2 |
| Annual Avg | -10.1 | 4 | 18.2 | 0 | 10.6 | 21.1 |
Min / mean / max temperature (°C). 🔥 marks each city's hottest month, ❄️ its coldest; shading runs cool blue to warm red.
The same figures plotted out, so the shape of a typical year is easier to see than in a grid. Where the two lines run close together Calgary and Cologne feel alike; where they separate, they are genuinely different places to be.
Hover or tap any point to read the exact figures. Calgary Cologne
See how Calgary and Cologne stack up against other cities. Swipe for more.
Choose which city to keep, then search for any other city in our database — we'll build the comparison for you.
Quick answers to the questions people ask most when comparing Calgary and Cologne — each drawn straight from the climate figures above.
Cologne is the warmer of the two. It averages daytime highs of 21.1°C (70°F) against 18.2°C (64.8°F) in Calgary — roughly 2.9°C (5.2°F) warmer by day. Nights are milder in Cologne, with average lows of 0°C (32°F) versus -10.1°C (13.8°F).
Calgary is hottest in July, averaging highs of about 30.1°C (86.3°F), while Cologne peaks in August at around 31.7°C (89°F). That makes Cologne the hotter of the two at the height of summer.
Calgary gets colder. In its coldest month (January) overnight lows average about -25.1°C (-13.1°F), compared with -8.2°C (17.2°F) at the low point of the year in Cologne.
Cologne is the wetter city, collecting about 822 mm (32.4 in) of rain a year versus 524 mm (20.6 in) in Calgary. Calgary is wettest in June and driest in January; Cologne is wettest in December and driest in April.
Cologne is the more humid of the two, averaging 82% relative humidity over the year against 71% in Calgary.
The most comfortable months in Calgary are June, July and August, when average temperatures are at their mildest.
Cologne is at its most pleasant around June, July and August, based on the mildest average temperatures of the year.
Cologne is the warmer city in all 12 months of the year. The gap is widest in December, about 11.9°C (21.4°F), and narrowest in July, about 2.7°C (4.9°F).
Calgary has the bigger seasonal swing, about 27.6°C (49.7°F) between its coldest and hottest months versus 19.1°C (34.4°F) in Cologne — so Cologne has the steadier, more even climate.
It depends what matters most to you: choose Cologne for warmer weather, pick Calgary if you prefer drier conditions and go for Calgary if you want lower humidity. There is no single "better" climate — it comes down to whether you value warmth, dryness or comfort most.
Every figure on this page is calculated from NASA POWER satellite climate data spanning 1981–2025 (45 years). The averages describe the long-term climate of Calgary and Cologne, not a single year's weather or a short-range forecast.
