Osaka Temperature by Month
The average annual maximum temperature in Osaka, Osaka Prefecture, Japan is 22°C (72°F), with daytime highs ranging from 10°C (50°F) in January to 34°C (93°F) in August. This page covers monthly averages, day-night differences, and how Osaka compares to cities worldwide.
Osaka Monthly Temperatures
Visitors to Osaka will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 25°C (77°F) in August to 2°C (36°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Osaka by month:
The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. August, the city's warmest month, gets 223 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
50-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in June
Historical Osaka Temperatures: 1976-2026
Browse day-by-day temperature records for Osaka spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Osaka vs Japan
The map below shows the annual temperature across Japan. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Osaka vs World: Temperature Compared
Osaka's average annual maximum temperature is 22°C (72°F). To put that in context, here's how it compares to a few well-known destinations:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
Beijing, China averages 20°C (68°F) annually, but with big seasonal swings — very cold winters and hot summers.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
What Does the Temperature Feel Like in Osaka?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.
In Osaka, January is the coolest month, with average highs of 10°C (50°F) and humidity around 61% — considered high. In August, the warmest month, temperatures average 34°C (93°F) with 66% humidity — conditions that feel high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Osaka this rarely lasts long on the ground.
For more on Osaka's weather — including monthly rainfall, sunshine hours, and humidity — visit our Osaka climate page.
