Dubai is 4.6°C (8.3°F) warmer by day, Dubai has 11.7°C (21.1°F) warmer nights, Sydney gets 830 mm (32.7 in) more rain a year.
Dubai is at its warmest in August and coolest in February, while Sydney peaks in January and bottoms out in July. Month for month, Dubai is the warmer of the two in 9 of 11 months.
Sydney is the wetter of the two, collecting 963 mm (37.9 in) of rain a year against 133 mm (5.2 in) in Dubai. The most comfortable time to visit is January, February and March in Dubai and April, October and November in Sydney.
| Dubai | Metric | Sydney |
|---|---|---|
| 🌡️ Temperature | ||
| 31.1°C | 🌡️Average daytime high | 26.5°C |
| 24.7°C | 🌙Average nighttime low | 13°C |
| August | 🔥Hottest month | January |
| February | ❄️Coldest month | July |
| 🌧️ Rain | ||
| 133 mm | 🌧️Annual rainfall | 963 mm |
| January | ☔Wettest month | February |
| September | 🏜️Driest month | September |
| 💨 Climate | ||
| 69% | 💧Average humidity | 73% |
| 3.5 m/s | 💨Average wind speed | 3.2 m/s |
Overnight, Dubai typically falls to around 24.7°C (76.5°F) while Sydney settles near 13°C (55.4°F).
Dubai is hottest in August and coldest in February, whereas Sydney peaks in January and is coolest in July.
Dubai sees the most rain in January and the least in September; Sydney is wettest in February and driest in September.
Sydney feels the more humid of the two, averaging 73% relative humidity against 69%.
For Sydney, the pick of the year is April, October and November.
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 | Dubai | Sydney | ||||
|---|---|---|---|---|---|---|
| Min | Avg | Max | Min | Avg | Max | |
| January | 18.5 | 21.4❄️ | 24.2 | 17.8 | 25.4🔥 | 32.9 |
| February | 18.3 | 21.5 | 24.8 | 18 | 24.8 | 31.6 |
| March | 19.5 | 23.3 | 27 | 16.6 | 22.9 | 29.3 |
| April | 22 | 25.7 | 29.4 | 14 | 20.1 | 26.2 |
| May | 25.2 | 28.9 | 32.6 | 11.4 | 17.2 | 23 |
| June | 28.3 | 31.5 | 34.7 | 9 | 14.4 | 19.8 |
| July | 30 | 33.5 | 37 | 8.4 | 14❄️ | 19.6 |
| August | 31.1 | 34.2🔥 | 37.2 | 8.8 | 15 | 21.2 |
| September | 30.3 | 33 | 35.7 | 10.3 | 17.6 | 24.9 |
| October | 28.1 | 30.8 | 33.5 | 12.1 | 20.1 | 28.1 |
| November | 24.4 | 27.4 | 30.5 | 13.5 | 21.6 | 29.8 |
| December | 20.5 | 23.7 | 26.8 | 15.7 | 23.7 | 31.8 |
| Annual Avg | 24.7 | 27.9 | 31.1 | 13 | 19.7 | 26.5 |
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 Dubai and Sydney feel alike; where they separate, they are genuinely different places to be.
Hover or tap any point to read the exact figures. Dubai Sydney
See how Dubai and Sydney 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 Dubai and Sydney — each drawn straight from the climate figures above.
Dubai is the warmer of the two. It averages daytime highs of 31.1°C (88°F) against 26.5°C (79.7°F) in Sydney — roughly 4.6°C (8.3°F) warmer by day. Nights are milder in Dubai, with average lows of 24.7°C (76.5°F) versus 13°C (55.4°F).
Dubai is hottest in August, averaging highs of about 37.2°C (99°F), while Sydney peaks in January at around 32.9°C (91.2°F). That makes Dubai the hotter of the two at the height of summer.
Sydney gets colder. In its coldest month (July) overnight lows average about 8.4°C (47.1°F), compared with 18.3°C (64.9°F) at the low point of the year in Dubai.
Sydney is the wetter city, collecting about 963 mm (37.9 in) of rain a year versus 133 mm (5.2 in) in Dubai. Dubai is wettest in January and driest in September; Sydney is wettest in February and driest in September.
Sydney is the more humid of the two, averaging 73% relative humidity over the year against 69% in Dubai.
The most comfortable months in Dubai are January, February and March, when average temperatures are at their mildest.
Sydney is at its most pleasant around April, October and November, based on the mildest average temperatures of the year.
Dubai is the warmer city in 9 of the 11 months of the year. The gap is widest in July, about 19.5°C (35.1°F), and narrowest in December, about 0°C (0°F).
Dubai has the bigger seasonal swing, about 12.8°C (23°F) between its coldest and hottest months versus 11.4°C (20.5°F) in Sydney — so Sydney has the steadier, more even climate.
On climate alone, Dubai comes out ahead — it offers warmer days, less rain and lower humidity than Sydney. Sydney 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 Dubai and Sydney, not a single year's weather or a short-range forecast.
