Adelaide is 0.5°C (0.9°F) warmer by day, Brisbane has 7.4°C (13.3°F) warmer nights, Brisbane gets 726 mm (28.6 in) more rain a year.
Adelaide is at its warmest in January and coolest in July, while Brisbane peaks in January and bottoms out in July. Month for month, Brisbane is the warmer of the two in 12 of 12 months.
Brisbane is the wetter of the two, collecting 1,179 mm (46.4 in) of rain a year against 453 mm (17.8 in) in Adelaide. The most comfortable time to visit is March, April and November in Adelaide and April, September and October in Brisbane.
| Adelaide | Metric | Brisbane |
|---|---|---|
| 🌡️ Temperature | ||
| 29.6°C | 🌡️Average daytime high | 29.1°C |
| 6.4°C | 🌙Average nighttime low | 13.8°C |
| January | 🔥Hottest month | January |
| July | ❄️Coldest month | July |
| 🌧️ Rain | ||
| 453 mm | 🌧️Annual rainfall | 1,179 mm |
| July | ☔Wettest month | February |
| February | 🏜️Driest month | September |
| 💨 Climate | ||
| 65% | 💧Average humidity | 72% |
| 2.8 m/s | 💨Average wind speed | 3.5 m/s |
Overnight, Adelaide typically falls to around 6.4°C (43.5°F) while Brisbane settles near 13.8°C (56.8°F).
Adelaide is hottest in January and coldest in July, whereas Brisbane peaks in January and is coolest in July.
Adelaide sees the most rain in July and the least in February; Brisbane is wettest in February and driest in September.
Brisbane feels the more humid of the two, averaging 72% relative humidity against 65%.
For Brisbane, the pick of the year is April, September and October.
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 | Adelaide | Brisbane | ||||
|---|---|---|---|---|---|---|
| Min | Avg | Max | Min | Avg | Max | |
| January | 11 | 25.6🔥 | 40.1 | 20 | 26.8🔥 | 33.6 |
| February | 11 | 24.8 | 38.6 | 20 | 26.3 | 32.5 |
| March | 9.4 | 22.5 | 35.6 | 18.1 | 24.7 | 31.3 |
| April | 7.2 | 18.7 | 30.2 | 14.8 | 21.6 | 28.4 |
| May | 4.7 | 14.4 | 24.1 | 11 | 18.4 | 25.8 |
| June | 2.8 | 11.1 | 19.3 | 8 | 15.7 | 23.3 |
| July | 2.1 | 10.1❄️ | 18.1 | 7.6 | 15.4❄️ | 23.1 |
| August | 2.7 | 11.9 | 21 | 8.3 | 16.7 | 25 |
| September | 3.8 | 14.8 | 25.7 | 10.7 | 19.6 | 28.5 |
| October | 5.2 | 17.8 | 30.4 | 13.5 | 22.4 | 31.3 |
| November | 7.1 | 21 | 34.9 | 15.8 | 24.1 | 32.4 |
| December | 9.2 | 23.4 | 37.6 | 17.9 | 25.8 | 33.6 |
| Annual Avg | 6.4 | 18 | 29.6 | 13.8 | 21.5 | 29.1 |
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 Adelaide and Brisbane feel alike; where they separate, they are genuinely different places to be.
Hover or tap any point to read the exact figures. Adelaide Brisbane
See how Adelaide and Brisbane 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 Adelaide and Brisbane — each drawn straight from the climate figures above.
Adelaide is the warmer of the two. It averages daytime highs of 29.6°C (85.3°F) against 29.1°C (84.4°F) in Brisbane — roughly 0.5°C (0.9°F) warmer by day. Nights are milder in Brisbane, with average lows of 13.8°C (56.8°F) versus 6.4°C (43.5°F).
Adelaide is hottest in January, averaging highs of about 40.1°C (104.2°F), while Brisbane peaks in January at around 33.6°C (92.5°F). That makes Adelaide the hotter of the two at the height of summer.
Adelaide gets colder. In its coldest month (July) overnight lows average about 2.1°C (35.8°F), compared with 7.6°C (45.7°F) at the low point of the year in Brisbane.
Brisbane is the wetter city, collecting about 1,179 mm (46.4 in) of rain a year versus 453 mm (17.8 in) in Adelaide. Adelaide is wettest in July and driest in February; Brisbane is wettest in February and driest in September.
Brisbane is the more humid of the two, averaging 72% relative humidity over the year against 65% in Adelaide.
The most comfortable months in Adelaide are March, April and November, when average temperatures are at their mildest.
Brisbane is at its most pleasant around April, September and October, based on the mildest average temperatures of the year.
Brisbane is the warmer city in all 12 months of the year. The gap is widest in July, about 5.3°C (9.5°F), and narrowest in January, about 1.2°C (2.2°F).
Adelaide has the bigger seasonal swing, about 15.5°C (27.9°F) between its coldest and hottest months versus 11.4°C (20.5°F) in Brisbane — so Brisbane has the steadier, more even climate.
On climate alone, Adelaide comes out ahead — it offers warmer days, less rain and lower humidity than Brisbane. Brisbane 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 Adelaide and Brisbane, not a single year's weather or a short-range forecast.
