Brisbane is 3.2°C (5.8°F) warmer by day, Brisbane has 6.9°C (12.4°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 January, March and December in Adelaide and April, May and October in Brisbane.
| Adelaide | Metric | Brisbane |
|---|---|---|
| 🌡️ Temperature | ||
| 21.5°C | 🌡️Average daytime high | 24.7°C |
| 10.7°C | 🌙Average nighttime low | 17.6°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 10.7°C (51.3°F) while Brisbane settles near 17.6°C (63.7°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, May 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 | 15.4 | 22.3🔥 | 29.3 | 22.2 | 25.5🔥 | 28.8 |
| February | 15.5 | 22.3 | 29.2 | 22.2 | 25.3 | 28.3 |
| March | 14.1 | 20.2 | 26.4 | 21.2 | 24.1 | 27.1 |
| April | 11.6 | 16.9 | 22.2 | 18.9 | 21.9 | 25 |
| May | 9.4 | 13.7 | 18 | 16 | 19.3 | 22.5 |
| June | 7.2 | 11 | 14.8 | 13.2 | 16.7 | 20.1 |
| July | 6.3 | 10❄️ | 13.8 | 12.1 | 15.9❄️ | 19.7 |
| August | 6.5 | 10.7 | 14.9 | 12.7 | 16.8 | 20.9 |
| September | 7.8 | 12.7 | 17.6 | 15 | 19.3 | 23.6 |
| October | 9.4 | 15.1 | 20.9 | 17.4 | 21.5 | 25.6 |
| November | 11.7 | 18 | 24.3 | 19.4 | 23.1 | 26.9 |
| December | 13.6 | 20.2 | 26.9 | 21.1 | 24.6 | 28.2 |
| Annual Avg | 10.7 | 16.1 | 21.5 | 17.6 | 21.2 | 24.7 |
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 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.
Brisbane is the warmer of the two. It averages daytime highs of 24.7°C (76.5°F) against 21.5°C (70.7°F) in Adelaide — roughly 3.2°C (5.8°F) warmer by day. Nights are milder in Brisbane, with average lows of 17.6°C (63.7°F) versus 10.7°C (51.3°F).
Adelaide is hottest in January, averaging highs of about 29.3°C (84.8°F), while Brisbane peaks in January at around 28.8°C (83.8°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 6.3°C (43.3°F), compared with 12.1°C (53.8°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 January, March and December, when average temperatures are at their mildest.
Brisbane is at its most pleasant around April, May 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 September, about 6.6°C (11.9°F), and narrowest in February, about 3°C (5.4°F).
Adelaide has the bigger seasonal swing, about 12.3°C (22.1°F) between its coldest and hottest months versus 9.6°C (17.3°F) in Brisbane — so Brisbane has the steadier, more even climate.
It depends what matters most to you: choose Brisbane for warmer weather, pick Adelaide if you prefer drier conditions and go for Adelaide 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 Adelaide and Brisbane, not a single year's weather or a short-range forecast.
