Perth is 13.1°C (23.6°F) warmer by day, Perth has 23.8°C (42.8°F) warmer nights, Quebec City gets 466 mm (18.3 in) more rain a year.
Perth is at its warmest in January and coolest in August, while Quebec City peaks in July and bottoms out in January. Month for month, Perth is the warmer of the two in 10 of 12 months.
Quebec City is the wetter of the two, collecting 1,161 mm (45.7 in) of rain a year against 695 mm (27.4 in) in Perth. The most comfortable time to visit is April, May and November in Perth and June, July and August in Quebec City.
| Perth | Metric | Quebec City |
|---|---|---|
| 🌡️ Temperature | ||
| 27.8°C | 🌡️Average daytime high | 14.7°C |
| 13°C | 🌙Average nighttime low | -10.8°C |
| January | 🔥Hottest month | July |
| August | ❄️Coldest month | January |
| 🌧️ Rain | ||
| 695 mm | 🌧️Annual rainfall | 1,161 mm |
| July | ☔Wettest month | July |
| December | 🏜️Driest month | February |
| 💨 Climate | ||
| 69% | 💧Average humidity | 88% |
| 5.2 m/s | 💨Average wind speed | 1.3 m/s |
Overnight, Perth typically falls to around 13°C (55.4°F) while Quebec City settles near -10.8°C (12.6°F).
Perth is hottest in January and coldest in August, whereas Quebec City peaks in July and is coolest in January.
Perth sees the most rain in July and the least in December; Quebec City is wettest in July and driest in February.
Quebec City feels the more humid of the two, averaging 88% relative humidity against 69%.
For Quebec City, 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 | Perth | Quebec City | ||||
|---|---|---|---|---|---|---|
| Min | Avg | Max | Min | Avg | Max | |
| January | 15.9 | 25.3 | 34.7 | -32.6 | -16.2❄️ | 0.2 |
| February | 16.3 | 25.4🔥 | 34.5 | -30.7 | -15.4 | 0 |
| March | 15.6 | 24.4 | 33.2 | -25.5 | -10.5 | 4.4 |
| April | 14.3 | 21.7 | 29.1 | -11.4 | 2.2 | 15.9 |
| May | 12.9 | 19 | 25.1 | -2.6 | 10.1 | 22.8 |
| June | 11.2 | 16.6 | 22.1 | 3.5 | 14.7 | 25.9 |
| July | 10.4 | 15.5❄️ | 20.6 | 7.9 | 17.3🔥 | 26.7 |
| August | 10 | 15.5 | 20.9 | 6.5 | 16.3 | 26.1 |
| September | 10.4 | 16.7 | 23 | 1.3 | 12.5 | 23.6 |
| October | 11.3 | 19 | 26.8 | -4.4 | 6.8 | 18 |
| November | 12.9 | 21.7 | 30.5 | -14.8 | -2 | 10.8 |
| December | 14.6 | 24 | 33.4 | -27 | -12.4 | 2.2 |
| Annual Avg | 13 | 20.4 | 27.8 | -10.8 | 2 | 14.7 |
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 Perth and Quebec City feel alike; where they separate, they are genuinely different places to be.
Hover or tap any point to read the exact figures. Perth Quebec City
See how Perth and Quebec City 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 Perth and Quebec City — each drawn straight from the climate figures above.
Perth is the warmer of the two. It averages daytime highs of 27.8°C (82°F) against 14.7°C (58.5°F) in Quebec City — roughly 13.1°C (23.6°F) warmer by day. Nights are milder in Perth, with average lows of 13°C (55.4°F) versus -10.8°C (12.6°F).
Perth is hottest in January, averaging highs of about 34.7°C (94.5°F), while Quebec City peaks in July at around 26.7°C (80.1°F). That makes Perth the hotter of the two at the height of summer.
Quebec City gets colder. In its coldest month (January) overnight lows average about -32.6°C (-26.6°F), compared with 10°C (50°F) at the low point of the year in Perth.
Quebec City is the wetter city, collecting about 1,161 mm (45.7 in) of rain a year versus 695 mm (27.4 in) in Perth. Perth is wettest in July and driest in December; Quebec City is wettest in July and driest in February.
Quebec City is the more humid of the two, averaging 88% relative humidity over the year against 69% in Perth.
The most comfortable months in Perth are April, May and November, when average temperatures are at their mildest.
Quebec City is at its most pleasant around June, July and August, based on the mildest average temperatures of the year.
Perth is the warmer city in 10 of the 12 months of the year. The gap is widest in January, about 41.5°C (74.7°F), and narrowest in August, about 0.8°C (1.4°F).
Quebec City has the bigger seasonal swing, about 33.5°C (60.3°F) between its coldest and hottest months versus 9.9°C (17.8°F) in Perth — so Perth has the steadier, more even climate.
On climate alone, Perth comes out ahead — it offers warmer days, less rain and lower humidity than Quebec City. Quebec City 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 Perth and Quebec City, not a single year's weather or a short-range forecast.
