Osaka is Japan's third-largest and most developed city, making it one of the most popular travel destinations. It offers a wide variety of attractions, including food, shopping, temples, shrines, and Osaka Castle, the city's best-known landmark. This makes Osaka a great destination to visit in any month of the year.
Osaka's climate is similar to Tokyo's, with fairly distinct seasonal differences. However, temperatures are generally 1-3 degrees warmer than Tokyo, and rainfall is slightly lower as well. This gives Osaka pleasant weather year-round except in summer. Rainfall peaks around the middle of the year, along with the highest temperatures and longest daylight hours. As in Tokyo, September carries the highest risk of typhoons.
The hottest month in Osaka is August.
The coldest month in Osaka is January.
The rainiest month in Osaka is June.
The month with the longest daylight hours in Osaka is June
Average monthly temperature in Osaka, from holiday-weather.com
Average monthly rainfall in Osaka, from holiday-weather.com
Monthly Weather Overview for Osaka
January
Average temperature: 6°C. Cold, with occasional snow. Clear skies and crisp air. Low rainfall.
February
Average temperature: 6°C. Slightly warmer, but still cold with occasional snow. Low rainfall.
March
Average temperature: 10°C. Spring begins, with cherry blossoms starting to bloom in late March. Moderate rainfall.
April
Average temperature: 15°C. Pleasant spring weather with cherry blossoms in full bloom. Moderate rainfall.
May
Average temperature: 20°C. Warm and comfortable, ideal for outdoor activities. Moderate rainfall.
June
Average temperature: 24°C. The rainy season begins. High rainfall.
July
Average temperature: 28°C. Hot and humid, full summer. Moderate to high rainfall.
August
Average temperature: 30°C. The hottest month, with high humidity. Moderate to high rainfall.
September
Average temperature: 26°C. Summer ends and typhoon season begins. High rainfall.
October
Average temperature: 20°C. Pleasant autumn weather. Moderate rainfall.
November
Average temperature: 14°C. Cooler, with autumn foliage. Low to moderate rainfall.
December
Average temperature: 8°C. Cold with clear skies as winter begins. Low rainfall.
Osaka's Winter Weather and Temperature: December, January, and February Winter in Osaka
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- Winter in Osaka brings similarly low temperatures in January and February, averaging around 6°C. December is milder at around 8°C. Snow is uncommon, and daylight hours are shorter than in other seasons. Nighttime temperatures can drop close to 0°C, though they rarely go below freezing.
- What to wear: choose windproof clothing that can handle temperatures near 0°C, such as a coat or down jacket. It's better to overdress than underdress — you can always remove a layer if it gets warm during the day and put it back on at night.
- Recommended activities: view the winter illumination at Umeda Sky Building, explore Osaka Castle when it is less crowded, and relax in a hot spring.
- Festivals: New Year celebrations, and the Osaka Illumination Festival.
Osaka's Spring Weather and Temperature: March, April, and May Spring in Osaka
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- Spring in Osaka brings cool, pleasant weather with occasional light rain. March is still cool, averaging around 10°C, warming to 15°C in April and 20°C in May. Cherry blossoms reach full bloom from late March to early April.
- What to wear: light, comfortable clothing works well, but bring a jacket for cooler moments, along with an umbrella or raincoat.
- Recommended activities: view cherry blossoms at Osaka Castle Park and Sakuranomiya Park, and visit the Japan Mint for its cherry blossom walk.
- Festivals: Hanami (cherry blossom viewing).
Osaka's Summer Weather and Temperature: June, July, and August Summer in Osaka
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- Summer in Osaka is the rainiest season of the year, with the longest daylight hours. June averages around 24°C, while July and August are similarly hot at 28°C and 30°C respectively, making August the hottest month of the year. Daytime temperatures can climb as high as 33–35°C.
- What to wear: light clothing such as short sleeves and shorts works well. Bring a light jacket for mornings or evenings, when temperatures can drop to around 20–21°C, and carry a raincoat or umbrella since this is the rainiest season of the year.
- Recommended activities: enjoy Universal Studios Japan, visit the Osaka Aquarium, and join summer festivals.
- Festivals: the Tenjin Festival in July, and the summer festival at Sumiyoshi Taisha.
Osaka's Autumn Weather and Temperature: September, October, and November Autumn in Osaka
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- Autumn in Osaka brings pleasantly cool temperatures, similar to spring, with occasional light rain. September is an exception, as it's typically the month with the highest risk of typhoons in Japan, especially on Honshu. September averages around 26°C, cooling to 20°C in October and 14°C in November. Autumn leaves reach their peak from mid to late November.
- What to wear: similar to spring — long sleeves, long pants, and a jacket, along with a raincoat or umbrella.
- Recommended activities: view autumn leaves at Minoh Park, explore Osaka Castle, and take a boat cruise on the Okawa River.
- Festivals: Kishiwada Danjiri Festival, and Labor Thanksgiving Day.