New Delhi is 10.9°C (19.6°F) warmer by day, New Delhi has 1.8°C (3.2°F) warmer nights, Sydney gets 309 mm (12.2 in) more rain a year.
New Delhi is at its warmest in June and coolest in January, while Sydney peaks in January and bottoms out in July. Month for month, New Delhi is the warmer of the two in 8 of 12 months.
Sydney is the wetter of the two, collecting 963 mm (37.9 in) of rain a year against 654 mm (25.7 in) in New Delhi. The most comfortable time to visit is February, March and November in New Delhi and April, October and November in Sydney.
| New Delhi | Metric | Sydney |
|---|---|---|
| 🌡️ Temperature | ||
| 37.4°C | 🌡️Average daytime high | 26.5°C |
| 14.8°C | 🌙Average nighttime low | 13°C |
| June | 🔥Hottest month | January |
| January | ❄️Coldest month | July |
| 🌧️ Rain | ||
| 654 mm | 🌧️Annual rainfall | 963 mm |
| August | ☔Wettest month | February |
| November | 🏜️Driest month | September |
| 💨 Climate | ||
| 43% | 💧Average humidity | 73% |
| 2 m/s | 💨Average wind speed | 3.2 m/s |
Overnight, New Delhi typically falls to around 14.8°C (58.6°F) while Sydney settles near 13°C (55.4°F).
New Delhi is hottest in June and coldest in January, whereas Sydney peaks in January and is coolest in July.
New Delhi sees the most rain in August and the least in November; Sydney is wettest in February and driest in September.
Sydney feels the more humid of the two, averaging 73% relative humidity against 43%.
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 | New Delhi | Sydney | ||||
|---|---|---|---|---|---|---|
| Min | Avg | Max | Min | Avg | Max | |
| January | 2.7 | 14.8❄️ | 26.9 | 17.8 | 25.4🔥 | 32.9 |
| February | 4.8 | 18.2 | 31.6 | 18 | 24.8 | 31.6 |
| March | 9.4 | 23.9 | 38.5 | 16.6 | 22.9 | 29.3 |
| April | 15.3 | 29.4 | 43.5 | 14 | 20.1 | 26.2 |
| May | 22.1 | 34.2 | 46.3 | 11.4 | 17.2 | 23 |
| June | 25.8 | 36.1🔥 | 46.3 | 9 | 14.4 | 19.8 |
| July | 25.8 | 34.3 | 42.9 | 8.4 | 14❄️ | 19.6 |
| August | 24.2 | 31.2 | 38.3 | 8.8 | 15 | 21.2 |
| September | 20.3 | 28.9 | 37.4 | 10.3 | 17.6 | 24.9 |
| October | 14.7 | 25.5 | 36.4 | 12.1 | 20.1 | 28.1 |
| November | 8.8 | 20.6 | 32.4 | 13.5 | 21.6 | 29.8 |
| December | 4.2 | 16.1 | 28 | 15.7 | 23.7 | 31.8 |
| Annual Avg | 14.8 | 26.1 | 37.4 | 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 New Delhi and Sydney feel alike; where they separate, they are genuinely different places to be.
Hover or tap any point to read the exact figures. New Delhi Sydney
See how New Delhi 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 New Delhi and Sydney — each drawn straight from the climate figures above.
New Delhi is the warmer of the two. It averages daytime highs of 37.4°C (99.3°F) against 26.5°C (79.7°F) in Sydney — roughly 10.9°C (19.6°F) warmer by day. Nights are milder in New Delhi, with average lows of 14.8°C (58.6°F) versus 13°C (55.4°F).
New Delhi is hottest in June, averaging highs of about 46.3°C (115.4°F), while Sydney peaks in January at around 32.9°C (91.2°F). That makes New Delhi the hotter of the two at the height of summer.
New Delhi gets colder. In its coldest month (January) overnight lows average about 2.7°C (36.9°F), compared with 8.4°C (47.1°F) at the low point of the year in Sydney.
Sydney is the wetter city, collecting about 963 mm (37.9 in) of rain a year versus 654 mm (25.7 in) in New Delhi. New Delhi is wettest in August and driest in November; 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 43% in New Delhi.
The most comfortable months in New Delhi are February, March and November, 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.
New Delhi is the warmer city in 8 of the 12 months of the year. The gap is widest in June, about 21.7°C (39.1°F), and narrowest in March, about 1°C (1.8°F).
New Delhi has the bigger seasonal swing, about 21.3°C (38.3°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, New Delhi 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 New Delhi and Sydney, not a single year's weather or a short-range forecast.
