Mumbai is 14.6°C (26.3°F) warmer by day, Mumbai has 19.4°C (34.9°F) warmer nights, Mumbai gets 1,532 mm (60.3 in) more rain a year.
Cologne is at its warmest in August and coolest in January, while Mumbai peaks in April and bottoms out in January. Month for month, Mumbai is the warmer of the two in 12 of 12 months.
Mumbai is the wetter of the two, collecting 2,354 mm (92.7 in) of rain a year against 822 mm (32.4 in) in Cologne. The most comfortable time to visit is June, July and August in Cologne and January, November and December in Mumbai.
| Cologne | Metric | Mumbai |
|---|---|---|
| 🌡️ Temperature | ||
| 21.1°C | 🌡️Average daytime high | 35.7°C |
| 0°C | 🌙Average nighttime low | 19.4°C |
| August | 🔥Hottest month | April |
| January | ❄️Coldest month | January |
| 🌧️ Rain | ||
| 822 mm | 🌧️Annual rainfall | 2,354 mm |
| December | ☔Wettest month | July |
| April | 🏜️Driest month | January |
| 💨 Climate | ||
| 82% | 💧Average humidity | 67% |
| 3 m/s | 💨Average wind speed | 2.6 m/s |
Overnight, Cologne typically falls to around 0°C (32°F) while Mumbai settles near 19.4°C (66.9°F).
Cologne is hottest in August and coldest in January, whereas Mumbai peaks in April and is coolest in January.
Cologne sees the most rain in December and the least in April; Mumbai is wettest in July and driest in January.
Cologne feels the more humid of the two, averaging 82% relative humidity against 67%.
For Mumbai, the pick of the year is January, 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 | Mumbai | ||||
|---|---|---|---|---|---|---|
| Min | Avg | Max | Min | Avg | Max | |
| January | -8.2 | 1.1❄️ | 10.5 | 12.7 | 24.1 | 35.5 |
| February | -7.4 | 2.2 | 11.9 | 14.5 | 26.7 | 38.9 |
| March | -4 | 6.5 | 16.9 | 17.8 | 30 | 42.3 |
| April | -2.2 | 9.6 | 21.4 | 20.9 | 32 | 43 |
| May | 2.1 | 13.7 | 25.2 | 24 | 32.7🔥 | 41.5 |
| June | 6.1 | 17.7 | 29.2 | 24.8 | 30.9 | 36.9 |
| July | 8.9 | 20.2🔥 | 31.6 | 24.1 | 27.3 | 30.4 |
| August | 8.6 | 20.1 | 31.7 | 23.4 | 26.5 | 29.6 |
| September | 5.4 | 16.2 | 27 | 22.3 | 27.1 | 31.8 |
| October | 0.6 | 11.2 | 21.7 | 18.4 | 25.8 | 33.3 |
| November | -3.2 | 6.1 | 15.3 | 15.8 | 24.3 | 32.7 |
| December | -6.8 | 2.2 | 11.2 | 13.6 | 23.3❄️ | 33.1 |
| Annual Avg | 0 | 10.6 | 21.1 | 19.4 | 27.6 | 35.8 |
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 Mumbai feel alike; where they separate, they are genuinely different places to be.
Hover or tap any point to read the exact figures. Cologne Mumbai
See how Cologne and Mumbai 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 Mumbai — each drawn straight from the climate figures above.
Mumbai is the warmer of the two. It averages daytime highs of 35.7°C (96.3°F) against 21.1°C (70°F) in Cologne — roughly 14.6°C (26.3°F) warmer by day. Nights are milder in Mumbai, with average lows of 19.4°C (66.9°F) versus 0°C (32°F).
Cologne is hottest in August, averaging highs of about 31.7°C (89°F), while Mumbai peaks in April at around 43°C (109.5°F). That makes Mumbai 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 12.7°C (54.8°F) at the low point of the year in Mumbai.
Mumbai is the wetter city, collecting about 2,354 mm (92.7 in) of rain a year versus 822 mm (32.4 in) in Cologne. Cologne is wettest in December and driest in April; Mumbai is wettest in July and driest in January.
Cologne is the more humid of the two, averaging 82% relative humidity over the year against 67% in Mumbai.
The most comfortable months in Cologne are June, July and August, when average temperatures are at their mildest.
Mumbai is at its most pleasant around January, November and December, based on the mildest average temperatures of the year.
Mumbai is the warmer city in all 12 months of the year. The gap is widest in February, about 24.5°C (44.1°F), and narrowest in August, about 6.4°C (11.5°F).
Cologne has the bigger seasonal swing, about 19.1°C (34.4°F) between its coldest and hottest months versus 9.4°C (16.9°F) in Mumbai — so Mumbai has the steadier, more even climate.
It depends what matters most to you: choose Mumbai for warmer weather, pick Cologne if you prefer drier conditions and go for Mumbai 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 Cologne and Mumbai, not a single year's weather or a short-range forecast.
