New Delhi is 9.6°C (17.3°F) warmer by day, New Delhi has 1.8°C (3.2°F) warmer nights, and both get similar annual rainfall.
New Delhi is at its warmest in June and coolest in January, while Perth peaks in January and bottoms out in August. Month for month, New Delhi is the warmer of the two in 7 of 12 months.
Both collect a similar amount of rain over the year — 654 mm (25.7 in) in New Delhi and 695 mm (27.4 in) in Perth. The most comfortable time to visit is February, March and November in New Delhi and April, May and November in Perth.
| New Delhi | Metric | Perth |
|---|---|---|
| 🌡️ Temperature | ||
| 37.4°C | 🌡️Average daytime high | 27.8°C |
| 14.8°C | 🌙Average nighttime low | 13°C |
| June | 🔥Hottest month | January |
| January | ❄️Coldest month | August |
| 🌧️ Rain | ||
| 654 mm | 🌧️Annual rainfall | 695 mm |
| August | ☔Wettest month | July |
| November | 🏜️Driest month | December |
| 💨 Climate | ||
| 43% | 💧Average humidity | 69% |
| 2 m/s | 💨Average wind speed | 5.2 m/s |
Overnight, New Delhi typically falls to around 14.8°C (58.6°F) while Perth settles near 13°C (55.4°F).
New Delhi is hottest in June and coldest in January, whereas Perth peaks in January and is coolest in August.
New Delhi sees the most rain in August and the least in November; Perth is wettest in July and driest in December.
Perth feels the more humid of the two, averaging 69% relative humidity against 43%.
For Perth, the pick of the year is April, May 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 | Perth | ||||
|---|---|---|---|---|---|---|
| Min | Avg | Max | Min | Avg | Max | |
| January | 2.7 | 14.8❄️ | 26.9 | 15.9 | 25.3 | 34.7 |
| February | 4.8 | 18.2 | 31.6 | 16.3 | 25.4🔥 | 34.5 |
| March | 9.4 | 23.9 | 38.5 | 15.6 | 24.4 | 33.2 |
| April | 15.3 | 29.4 | 43.5 | 14.3 | 21.7 | 29.1 |
| May | 22.1 | 34.2 | 46.3 | 12.9 | 19 | 25.1 |
| June | 25.8 | 36.1🔥 | 46.3 | 11.2 | 16.6 | 22.1 |
| July | 25.8 | 34.3 | 42.9 | 10.4 | 15.5❄️ | 20.6 |
| August | 24.2 | 31.2 | 38.3 | 10 | 15.5 | 20.9 |
| September | 20.3 | 28.9 | 37.4 | 10.4 | 16.7 | 23 |
| October | 14.7 | 25.5 | 36.4 | 11.3 | 19 | 26.8 |
| November | 8.8 | 20.6 | 32.4 | 12.9 | 21.7 | 30.5 |
| December | 4.2 | 16.1 | 28 | 14.6 | 24 | 33.4 |
| Annual Avg | 14.8 | 26.1 | 37.4 | 13 | 20.4 | 27.8 |
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 Perth feel alike; where they separate, they are genuinely different places to be.
Hover or tap any point to read the exact figures. New Delhi Perth
See how New Delhi and Perth 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 Perth — 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 27.8°C (82°F) in Perth — roughly 9.6°C (17.3°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 Perth peaks in January at around 34.7°C (94.5°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 10°C (50°F) at the low point of the year in Perth.
They get a similar amount of rain over a year — about 654 mm (25.7 in) in New Delhi and 695 mm (27.4 in) in Perth. New Delhi is wettest in August and driest in November; Perth is wettest in July and driest in December.
Perth is the more humid of the two, averaging 69% 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.
Perth is at its most pleasant around April, May and November, based on the mildest average temperatures of the year.
New Delhi is the warmer city in 7 of the 12 months of the year. The gap is widest in June, about 19.5°C (35.1°F), and narrowest in March, about 0.5°C (0.9°F).
New Delhi has the bigger seasonal swing, about 21.3°C (38.3°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, New Delhi comes out ahead — it offers warmer days and lower humidity than Perth. Perth is the better fit only if you'd actually prefer cooler weather 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 Perth, not a single year's weather or a short-range forecast.
