"Complete Guide to Osaka Weather" | Average Temperature, Clothing, Precipitation, Snow, and Best Season Explained

The climate in Osaka changes with the seasons, and factors such as average temperature and rainfall can affect your travel plans and choice of clothing. In this article, we will clearly explain the characteristics of each season, suitable clothing, the best time to visit, and tips for dealing with the rainy season in June.

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What’s the Weather Like in Osaka Today? Check Japan’s Weather Forecasts 

When sightseeing, the weather and temperature have a big impact on your clothing and what you bring with you. That’s why it’s important to check the weather in advance. Before heading out, be sure to check these popular weather websites in Japan.

👉Osaka Weather - Yahoo! Weather & Disaster Information

👉Osaka Weather - Weathernews

Characteristics of Osaka’s Weather | Average Temperature, Precipitation, Humidity

The weather in Osaka varies greatly depending on the season. When planning your trip to Osaka, refer to the information introduced here and decide which season you’d like to enjoy.

Osaka’s Annual Average Temperature | Hottest and Coldest Periods

According to statistics from the Japan Meteorological Agency, the hottest month in Osaka is August (monthly average 29.0°C), while the coldest month is January (monthly average 6.2°C). Additionally, the monthly average temperature in September also exceeds 25°C, making the extended late-summer heat a notable feature. In recent years, temperatures have shown a clear tendency to exceed the average, and in 2025, many months surpassed the 1991–2020 average. In particular, July saw a maximum temperature of 38.7°C, highlighting a continuing warming trend.

Annual Precipitation in Osaka | Periods of High and Low Rainfall

The months with the highest precipitation in Osaka are June (185.1mm) and July (174.4mm), influenced by the rainy season, and September (152.8mm), affected by typhoons. On the other hand, the driest period is the winter months from December to February. January sees the least precipitation at 47.0mm, followed by December with 55.5mm. While there may occasionally be cold rain in winter, overall, the weather tends to be calm and sunny.

Annual Humidity in Osaka | Periods of High and Low Humidity

Humidity in Osaka peaks at around 70% in June and July, influenced by the rainy season and moist air. In recent years, humidity has also tended to be high in October. Conversely, the lowest humidity is recorded in April (58%), with March also being low at 59%. In 2025, there were extremely dry days in April and May, with the minimum daily humidity dropping to as low as 12–14%. Thus, Osaka is characterized by being driest in spring and most humid in summer.

Snow in Osaka | When It Snows and Snowfall Amounts

The period when it snows in Osaka is limited, mainly concentrated in January and February. Very rarely, snow may also fall in December or March. Moreover, with average snowfall of only about 1 cm, Osaka is considered a city with little snow. Since snow does not accumulate every year and the region is not accustomed to it, even a small amount of snowfall can paralyze transportation networks, so caution is necessary.

When Is the Best Season to Visit Osaka? Analysis Based on Average Temperature and Precipitation

In Osaka, spring (March to May) still has some chilly days in March, but overall, the balance of temperature and humidity makes for a comfortable climate.

In autumn, November has an average temperature of 13.8°C and is often blessed with clear skies, making it a comfortable time to visit. Winter (January to February) sees average temperatures in the 6°C range and can be quite cold, but since precipitation is at its lowest for the year, it is a good season for sightseeing if you take proper cold-weather precautions.

On the other hand, June during the rainy season records the highest annual precipitation, and midsummer in July and August sees average temperatures rise to around 28°C. It is recommended to bring rain gear and take precautions against the heat when visiting during these times.

Osaka Weather in January | Average Temperature, Features, and Clothing

Average Temperature, Average High, and Average Low in Osaka in January

Weather Features in Osaka in January | Mostly Sunny, but Occasional Snow

January is the coldest month of the year. With precipitation at just 47.0mm, it is also the driest month, with many sunny days. As for snow, it falls on an average of about 4.7 days per month, but the average snow accumulation is 0cm, so it is rare for heavy snow to pile up.

What to Wear in Osaka in January

Since January is the coldest time of the year, a thick coat or down jacket and long pants are essential. Especially on chilly mornings and evenings, it’s best to combine warm accessories like scarves and gloves with disposable heating pads (kairo) and heat-retaining innerwear to stay comfortable.

Osaka Weather in February | Average Temperature, Features, Clothing

Average Temperature, Average High, and Average Low in Osaka in February

Weather Features in Osaka in February | Severe Cold, Warm Clothing Is Essential

February continues to be a period of harsh cold following January. Precipitation remains low, and there are many dry, sunny days. Snow falls on an average of about 5.5 days per month, slightly more frequent than in January, but the average snowfall is only about 1cm.

What to Wear in Osaka in February

February remains very cold, so thick coats or down jackets and long pants are still necessary, along with winter accessories like scarves and gloves. Since there are many chilly days, it’s important to layer thermal innerwear and take thorough measures against the cold.

Osaka Weather in March | Average Temperature, Features, Clothing

Average Temperature, Average High, and Average Low in Osaka in March

Weather Features in Osaka in March | Start of Cherry Blossom Season

In March, the harshness of winter eases and you can begin to feel the arrival of spring. Snow is rare and there are almost no records of snow accumulation. The temperature difference between day and night is large, so mornings and evenings can still feel chilly. Typically, cherry blossom season begins in late March.

What to Wear in Osaka in March

Since mornings and evenings can still be cold in March, there are times when a winter coat is necessary. However, during the day, you can often get by with a lighter jacket. Layering with thin sweaters or shirts is recommended so you can easily adjust your body temperature.

Osaka Weather in April | Average Temperature, Features, Clothing

Average Temperature, Average High, and Average Low in Osaka in April

Weather Features in Osaka in April | Full Bloom of Cherry Blossoms and Refreshing Spring Weather

Temperatures rise and humidity drops to 58%, the lowest of the year, making April in Osaka characterized by many pleasant, sunny days. This is the peak of spring, when cherry blossoms are in full bloom and beautiful scenery can be seen throughout the city. However, the temperature difference between day and night is still quite large during this month.

What to Wear in Osaka in April

The ideal clothing for April is a combination that can handle both the warm daytime hours and the lingering chill in the mornings and evenings. We recommend wearing long-sleeved clothing as a base, and adjusting to temperature changes by having a jacket or cardigan that can be easily put on or taken off.

Osaka Weather in May | Average Temperature, Features, Clothing

Average Temperature, Average High, and Average Low in Osaka in May

Weather Features in Osaka in May | Comfortable Early Summer Weather

May brings refreshing early summer weather. This month is characterized by some of the longest daylight hours of the year and frequent sunny days. Although rainfall tends to increase compared to April, the humidity remains comfortable at 61%. However, in 2025, there were days when the maximum temperature reached 30.5℃, marking the beginning of hotter weather.

What to Wear in Osaka in May

In May, mornings and evenings are cool, while the daytime can be hot enough to make you sweat. We recommend clothing that can adapt to these temperature changes throughout the day. It's best to use short- or long-sleeved shirts as a base, and bring a cardigan or jacket that you can easily put on or take off as needed.

Osaka Weather in June | Average Temperature, Features, Clothing

Average Temperature, Average High, and Average Low in Osaka in June

Weather Features in Osaka in June | Start of the Rainy Season and High Humidity

Due to the rainy season, June sees the highest rainfall of the year, with many rainy days. Both the average temperature and humidity are high, making it feel muggy. In recent years, rainfall has greatly exceeded the average, with 284.5mm in 2025, 297.0mm in 2024, and 262.0mm in 2023. This is a month when you need to be especially mindful of the rain.

What to Wear in Osaka in June

Because June feels muggy due to the rainy season, we recommend short-sleeved shirts or T-shirts and bottoms made from breathable materials. Since there are many rainy days, be sure to prepare rain gear, and choose clothing that dries quickly or footwear with water-repellent properties for peace of mind.

Osaka Weather in July | Average Temperature, Features, Clothing

Average Temperature, Average High, and Average Low in Osaka in July

Weather Features in Osaka in July | Start of Summer with High Temperatures and Rainfall

July marks the arrival of full-fledged summer, with many extremely hot days. The lingering effects of the rainy season mean rainfall is still high at 174.4mm, and the average humidity reaches an annual peak of 70%, making it feel very muggy. In recent years, there have even been days when the maximum temperature soared to 38.7℃, so thorough heat countermeasures are essential during this season.

What to Wear in Osaka in July

In the humid month of July, it is recommended to base your outfits on short-sleeved tops made from breathable materials. Additionally, measures to protect yourself from the strong sunlight, such as hats and parasols, are essential. It’s also a good idea to have a light jacket or cardigan on hand to deal with indoor air conditioning.

Osaka Weather in August | Average Temperature, Characteristics, Clothing

Average Temperature, Average High, and Average Low in Osaka in August

Weather Features in Osaka in August | The Hottest Month of the Year, Beware of Heatstroke

August is the hottest month of the year in Osaka. In 2025, there was even a day when the temperature reached as high as 38.1℃, so it is important to take measures against heatstroke, such as cooling your body and replenishing water and salt. The days are long and mostly sunny, but with an average of 4.3 days of thunderstorms—the highest in the year—so you need to be cautious of both extreme heat and sudden thunderstorms.

What to Wear in Osaka in August

August is the hottest month of the year and you’re likely to sweat a lot, so short-sleeved or sleeveless tops made from breathable, moisture-absorbing, and quick-drying materials are recommended. When going out, use a hat or parasol, and for indoor air conditioning, it’s reassuring to have a light jacket or cardigan with you.

Osaka Weather in September | Average Temperature, Characteristics, Clothing

Average Temperature, Average High, and Average Low in Osaka in September

Weather Features in Osaka in September | Lingering Heat and the Possibility of Heavy Rain from Typhoons

In September, Osaka still experiences lingering summer heat. In recent years, there have been days when the temperature exceeds 36℃, and with high humidity, heatstroke precautions are still necessary. The rainfall is also high at 152.8mm, and heavy rain can occur due to typhoons. When going out, be sure to check the weather forecast and prepare for sudden weather changes caused by autumn rains or typhoons.

What to Wear in Osaka in September

With the lingering heat in September, it is recommended to base your outfits on breathable short-sleeved tops and bottoms. However, since it can get cooler in the mornings, evenings, or on rainy days, you’ll also need a light jacket or cardigan. In addition, be sure to have rain gear ready to prepare for weather changes due to typhoons or autumn rain.

Osaka Weather in October | Average Temperature, Characteristics, Clothing

Average Temperature, Average High, and Average Low in Osaka in October

Weather Features in Osaka in October | Comfortable Autumn Weather, but Watch Out for Rain

October is a comfortable season when you can feel the deepening of autumn. On the other hand, the difference between the highest and lowest temperatures in a day can be as much as 8℃. In addition to the daily temperature difference, there are also large fluctuations in temperature from day to day during this month. Also, due to autumn weather patterns, there may be several consecutive days of light rain during this period.

What to Wear in Osaka in October

October is a comfortable time of year with an autumn atmosphere, but you should be careful of the temperature differences between day and night. During the day, you can stay comfortable in a long-sleeved shirt and light bottoms, but since it gets chilly in the mornings and evenings, you’ll need an extra layer, such as a jacket or cardigan.

Osaka Weather in November｜Average Temperature, Features, Clothing

Average Temperature, Average High, and Average Low in Osaka in November

Weather Features in Osaka in November｜Comfortable, but Chilly Mornings and Evenings

November is a time when you can feel the transition from autumn to winter. The average high temperature is comfortable, but the average low is quite chilly, especially in the mornings and evenings. Precipitation is relatively low, and there are many days of refreshing autumn sunshine.

What to Wear in Osaka in November

In November, you’ll need clothing that can handle both the comfortable daytime temperatures and the chilly mornings and evenings. During the day, a light sweater or shirt is suitable, while in the mornings and evenings, it’s recommended to wear a winter jacket or coat and adjust your outfit according to the temperature changes.

Osaka Weather in December｜Average Temperature, Features, Clothing

Average Temperature, Average High, and Average Low in Osaka in December

Weather Features in Osaka in December｜The Start of Winter Brings Continued Cold Days

December marks the real beginning of winter, and it gets even colder compared to November. Precipitation is low, and there are many sunny, dry days. On average, there are about 1.8 days of snowfall per month, but the average accumulated snowfall is 0cm, so while you may see some snowflakes, it is rare for snow to accumulate.

What to Wear in Osaka in December

As the winter cold sets in during December, you’ll need a heavy coat or down jacket when going out. Especially in the chilly mornings and evenings, using a scarf, gloves, or disposable heating pads (kairo) can help you stay warm. Layering with heat-retaining innerwear is also recommended.

Check Osaka Weather in Advance and Enjoy Your Trip! 

Osaka’s temperature and precipitation can change greatly depending on the season. That’s why it’s important to plan and choose your clothing according to the season to make the most of your time in Osaka. Check the seasonal features and weather in advance, and prepare thoroughly to enjoy a comfortable trip to Osaka.