Melbourne is 5°C (9°F) warmer by day, Melbourne has 7.2°C (13°F) warmer nights, Cologne gets 70 mm (2.8 in) more rain a year.
Cologne is at its warmest in August and coolest in January, while Melbourne peaks in January and bottoms out in July. Month for month, Melbourne is the warmer of the two in 7 of 11 months.
Cologne is the wetter of the two, collecting 822 mm (32.4 in) of rain a year against 752 mm (29.6 in) in Melbourne. The most comfortable time to visit is June, July and August in Cologne and March, November and December in Melbourne.
| Cologne | Metric | Melbourne |
|---|---|---|
| 🌡️ Temperature | ||
| 21.1°C | 🌡️Average daytime high | 26.1°C |
| 0°C | 🌙Average nighttime low | 7.2°C |
| August | 🔥Hottest month | January |
| January | ❄️Coldest month | July |
| 🌧️ Rain | ||
| 822 mm | 🌧️Annual rainfall | 752 mm |
| December | ☔Wettest month | October |
| April | 🏜️Driest month | February |
| 💨 Climate | ||
| 82% | 💧Average humidity | 75% |
| 3 m/s | 💨Average wind speed | 3.3 m/s |
Overnight, Cologne typically falls to around 0°C (32°F) while Melbourne settles near 7.2°C (45°F).
Cologne is hottest in August and coldest in January, whereas Melbourne peaks in January and is coolest in July.
Cologne sees the most rain in December and the least in April; Melbourne is wettest in October and driest in February.
Cologne feels the more humid of the two, averaging 82% relative humidity against 75%.
For Melbourne, the pick of the year is March, November and December.
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 | Cologne | Melbourne | ||||
|---|---|---|---|---|---|---|
| Min | Avg | Max | Min | Avg | Max | |
| January | -8.2 | 1.1❄️ | 10.5 | 11.2 | 23.8🔥 | 36.5 |
| February | -7.4 | 2.2 | 11.9 | 11.5 | 23.4 | 35.3 |
| March | -4 | 6.5 | 16.9 | 10.6 | 21.5 | 32.5 |
| April | -2.2 | 9.6 | 21.4 | 8.3 | 17.6 | 27 |
| May | 2.1 | 13.7 | 25.2 | 5.9 | 13.7 | 21.6 |
| June | 6.1 | 17.7 | 29.2 | 3.8 | 10.3 | 16.9 |
| July | 8.9 | 20.2🔥 | 31.6 | 3 | 9.3❄️ | 15.6 |
| August | 8.6 | 20.1 | 31.7 | 3.6 | 10.5 | 17.4 |
| September | 5.4 | 16.2 | 27 | 4.6 | 12.8 | 21 |
| October | 0.6 | 11.2 | 21.7 | 6 | 15.9 | 25.7 |
| November | -3.2 | 6.1 | 15.3 | 7.7 | 19 | 30.3 |
| December | -6.8 | 2.2 | 11.2 | 9.6 | 21.6 | 33.6 |
| Annual Avg | 0 | 10.6 | 21.1 | 7.2 | 16.6 | 26.1 |
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 Cologne and Melbourne feel alike; where they separate, they are genuinely different places to be.
Hover or tap any point to read the exact figures. Cologne Melbourne
See how Cologne and Melbourne 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 Cologne and Melbourne — each drawn straight from the climate figures above.
Melbourne is the warmer of the two. It averages daytime highs of 26.1°C (79°F) against 21.1°C (70°F) in Cologne — roughly 5°C (9°F) warmer by day. Nights are milder in Melbourne, with average lows of 7.2°C (45°F) versus 0°C (32°F).
Cologne is hottest in August, averaging highs of about 31.7°C (89°F), while Melbourne peaks in January at around 36.5°C (97.6°F). That makes Melbourne the hotter of the two at the height of summer.
Cologne gets colder. In its coldest month (January) overnight lows average about -8.2°C (17.2°F), compared with 3°C (37.3°F) at the low point of the year in Melbourne.
Cologne is the wetter city, collecting about 822 mm (32.4 in) of rain a year versus 752 mm (29.6 in) in Melbourne. Cologne is wettest in December and driest in April; Melbourne is wettest in October and driest in February.
Cologne is the more humid of the two, averaging 82% relative humidity over the year against 75% in Melbourne.
The most comfortable months in Cologne are June, July and August, when average temperatures are at their mildest.
Melbourne is at its most pleasant around March, November and December, based on the mildest average temperatures of the year.
Melbourne is the warmer city in 7 of the 11 months of the year. The gap is widest in January, about 22.7°C (40.9°F), and narrowest in May, about 0°C (0°F).
Cologne has the bigger seasonal swing, about 19.1°C (34.4°F) between its coldest and hottest months versus 14.5°C (26.1°F) in Melbourne — so Melbourne has the steadier, more even climate.
On climate alone, Melbourne comes out ahead — it offers warmer days, less rain and lower humidity than Cologne. Cologne is the better fit only if you'd actually prefer cooler weather, more rainfall and a more humid climate.
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 Cologne and Melbourne, not a single year's weather or a short-range forecast.
