Perth is 11.5°C (20.7°F) warmer by day, Perth has 15.4°C (27.7°F) warmer nights, Vancouver gets 1,458 mm (57.4 in) more rain a year.
Perth is at its warmest in January and coolest in August, while Vancouver peaks in August and bottoms out in December. Month for month, Perth is the warmer of the two in 10 of 12 months.
Vancouver is the wetter of the two, collecting 2,153 mm (84.8 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 Vancouver.
| Perth | Metric | Vancouver |
|---|---|---|
| 🌡️ Temperature | ||
| 27.8°C | 🌡️Average daytime high | 16.3°C |
| 13°C | 🌙Average nighttime low | -2.4°C |
| January | 🔥Hottest month | August |
| August | ❄️Coldest month | December |
| 🌧️ Rain | ||
| 695 mm | 🌧️Annual rainfall | 2,153 mm |
| July | ☔Wettest month | November |
| December | 🏜️Driest month | July |
| 💨 Climate | ||
| 69% | 💧Average humidity | 85% |
| 5.2 m/s | 💨Average wind speed | 0.8 m/s |
Overnight, Perth typically falls to around 13°C (55.4°F) while Vancouver settles near -2.4°C (27.7°F).
Perth is hottest in January and coldest in August, whereas Vancouver peaks in August and is coolest in December.
Perth sees the most rain in July and the least in December; Vancouver is wettest in November and driest in July.
Vancouver feels the more humid of the two, averaging 85% relative humidity against 69%.
For Vancouver, 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 | Vancouver | ||||
|---|---|---|---|---|---|---|
| Min | Avg | Max | Min | Avg | Max | |
| January | 15.9 | 25.3 | 34.7 | -12.8 | -4❄️ | 4.8 |
| February | 16.3 | 25.4🔥 | 34.5 | -11.9 | -3.2 | 5.5 |
| March | 15.6 | 24.4 | 33.2 | -7.7 | 0.5 | 8.7 |
| April | 14.3 | 21.7 | 29.1 | -3.4 | 5.8 | 15.1 |
| May | 12.9 | 19 | 25.1 | 1.3 | 11.6 | 21.9 |
| June | 11.2 | 16.6 | 22.1 | 5.5 | 15.6 | 25.6 |
| July | 10.4 | 15.5❄️ | 20.6 | 8.4 | 18.2 | 27.9 |
| August | 10 | 15.5 | 20.9 | 8.6 | 18.3🔥 | 28.1 |
| September | 10.4 | 16.7 | 23 | 4.8 | 14.9 | 25 |
| October | 11.3 | 19 | 26.8 | -1 | 8.6 | 18.2 |
| November | 12.9 | 21.7 | 30.5 | -8.4 | 0.7 | 9.8 |
| December | 14.6 | 24 | 33.4 | -12.8 | -3.9 | 5 |
| Annual Avg | 13 | 20.4 | 27.8 | -2.5 | 6.9 | 16.3 |
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 Vancouver feel alike; where they separate, they are genuinely different places to be.
Hover or tap any point to read the exact figures. Perth Vancouver
See how Perth and Vancouver 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 Vancouver — 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 16.3°C (61.3°F) in Vancouver — roughly 11.5°C (20.7°F) warmer by day. Nights are milder in Perth, with average lows of 13°C (55.4°F) versus -2.4°C (27.7°F).
Perth is hottest in January, averaging highs of about 34.7°C (94.5°F), while Vancouver peaks in August at around 28.1°C (82.5°F). That makes Perth the hotter of the two at the height of summer.
Vancouver gets colder. In its coldest month (December) overnight lows average about -12.8°C (8.9°F), compared with 10°C (50°F) at the low point of the year in Perth.
Vancouver is the wetter city, collecting about 2,153 mm (84.8 in) of rain a year versus 695 mm (27.4 in) in Perth. Perth is wettest in July and driest in December; Vancouver is wettest in November and driest in July.
Vancouver is the more humid of the two, averaging 85% 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.
Vancouver 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 29.3°C (52.7°F), and narrowest in June, about 1°C (1.8°F).
Vancouver has the bigger seasonal swing, about 22.3°C (40.1°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 Vancouver. Vancouver 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 Vancouver, not a single year's weather or a short-range forecast.
