Tokyo is 1.3°C (2.3°F) warmer by day, Tokyo has 2.2°C (4°F) warmer nights, Ōsaka gets 109 mm (4.3 in) more rain a year.
Tokyo is at its warmest in August and coolest in February, while Ōsaka peaks in August and bottoms out in February. Month for month, Tokyo is the warmer of the two in 12 of 12 months.
Ōsaka is the wetter of the two, collecting 1,719 mm (67.7 in) of rain a year against 1,610 mm (63.4 in) in Tokyo. The most comfortable time to visit is May, June and September in Tokyo and June, July and September in Ōsaka.
| Tokyo | Metric | Ōsaka |
|---|---|---|
| 🌡️ Temperature | ||
| 25.3°C | 🌡️Average daytime high | 24°C |
| 7.2°C | 🌙Average nighttime low | 5°C |
| August | 🔥Hottest month | August |
| February | ❄️Coldest month | February |
| 🌧️ Rain | ||
| 1,610 mm | 🌧️Annual rainfall | 1,719 mm |
| September | ☔Wettest month | June |
| December | 🏜️Driest month | January |
| 💨 Climate | ||
| 79% | 💧Average humidity | 82% |
| 2.6 m/s | 💨Average wind speed | 1.8 m/s |
Overnight, Tokyo typically falls to around 7.2°C (45°F) while Ōsaka settles near 5°C (41°F).
Tokyo is hottest in August and coldest in February, whereas Ōsaka peaks in August and is coolest in February.
Tokyo sees the most rain in September and the least in December; Ōsaka is wettest in June and driest in January.
Ōsaka feels the more humid of the two, averaging 82% relative humidity against 79%.
For Ōsaka, the pick of the year is June, July and September.
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 | Tokyo | Ōsaka | ||||
|---|---|---|---|---|---|---|
| Min | Avg | Max | Min | Avg | Max | |
| January | -1.8 | 6.7❄️ | 15.2 | -3.8 | 4.9❄️ | 13.6 |
| February | -1.9 | 7.4 | 16.8 | -3.9 | 6 | 15.9 |
| March | -0.5 | 9.7 | 19.9 | -2.8 | 8.2 | 19.1 |
| April | 2.6 | 13.3 | 24 | 0.1 | 11.8 | 23.6 |
| May | 8.6 | 18.1 | 27.7 | 6 | 16.4 | 26.8 |
| June | 13.7 | 22.3 | 30.9 | 11.7 | 20.6 | 29.5 |
| July | 18.3 | 26.3 | 34.2 | 17.6 | 24.8 | 32 |
| August | 20.3 | 27.5🔥 | 34.6 | 18.4 | 25.5🔥 | 32.6 |
| September | 15.1 | 23.8 | 32.4 | 12.8 | 21.7 | 30.6 |
| October | 8.7 | 18 | 27.4 | 5.9 | 16 | 26.1 |
| November | 3.4 | 12.9 | 22.5 | 0.7 | 11 | 21.4 |
| December | -0.4 | 8.9 | 18.3 | -2.3 | 7.2 | 16.6 |
| Annual Avg | 7.2 | 16.2 | 25.3 | 5 | 14.5 | 24 |
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 Tokyo and Ōsaka feel alike; where they separate, they are genuinely different places to be.
Hover or tap any point to read the exact figures. Tokyo Ōsaka
See how Tokyo and Ōsaka 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 Tokyo and Ōsaka — each drawn straight from the climate figures above.
Tokyo is the warmer of the two. It averages daytime highs of 25.3°C (77.5°F) against 24°C (75.2°F) in Ōsaka — roughly 1.3°C (2.3°F) warmer by day. Nights are milder in Tokyo, with average lows of 7.2°C (45°F) versus 5°C (41°F).
Tokyo is hottest in August, averaging highs of about 34.6°C (94.3°F), while Ōsaka peaks in August at around 32.6°C (90.6°F). That makes Tokyo the hotter of the two at the height of summer.
Ōsaka gets colder. In its coldest month (February) overnight lows average about -3.9°C (25°F), compared with -1.9°C (28.5°F) at the low point of the year in Tokyo.
Ōsaka is the wetter city, collecting about 1,719 mm (67.7 in) of rain a year versus 1,610 mm (63.4 in) in Tokyo. Tokyo is wettest in September and driest in December; Ōsaka is wettest in June and driest in January.
Ōsaka is the more humid of the two, averaging 82% relative humidity over the year against 79% in Tokyo.
The most comfortable months in Tokyo are May, June and September, when average temperatures are at their mildest.
Ōsaka is at its most pleasant around June, July and September, based on the mildest average temperatures of the year.
Tokyo is the warmer city in all 12 months of the year. The gap is widest in September, about 2.1°C (3.8°F), and narrowest in February, about 1.4°C (2.5°F).
Both have a similar seasonal range — around 20.8°C (37.4°F) between the coldest and hottest months — so neither climate is noticeably more extreme than the other.
On climate alone, Tokyo comes out ahead — it offers warmer days, less rain and lower humidity than Ōsaka. Ōsaka 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 Tokyo and Ōsaka, not a single year's weather or a short-range forecast.
