Osaka, Japan, located in the Kansai region, experiences a varied climate throughout the year.
The hottest month is August, with temperatures reaching up to 90°F and lows around 76°F.
Winters are mild compared to other places in the Northern Hemisphere. January, the coldest month, averages highs of 48°F and lows of 35°F.
Rain is common, especially in June, which receives the highest rainfall with approximately 7.44 inches.
Comparatively, cities like Tokyo and Sapporo experience different weather patterns due to their locations.
Tokyo sees warmer summers and milder winters, while Sapporo in the north has colder winters with heavy snowfall.
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Understanding Osaka’s climate can help travelers plan their trips wisely.
With an annual sunshine duration of about 2999 hours and pleasant weather most of the year, Osaka is a great destination for tourists seeking both cultural experiences and suitable weather conditions.
Average Temperature in Osaka, Japan
In January, the coldest month, the temperature in Osaka usually drops to an average low of 35°F and reaches a high of 48°F.
February remains chilly with lows around 37°F and highs around 50°F.
March sees a slight warming with temperatures ranging from 41°F to 56°F.
In April, temperatures continue to rise, with highs reaching 66°F and lows around 50°F.
By May, the weather becomes more comfortable, ranging from 59°F to 75°F.
June is warmer, with highs around 80°F and lows near 67°F.
July marks the beginning of the hottest period, with temperatures ranging from 74°F to 88°F.
The peak of summer, August, is the hottest month with highs of 90°F and lows around 76°F.
In September, temperatures start to cool slightly, ranging from 70°F to 83°F.
October brings more relief with temperatures between 59°F and 73°F.
November is cooler with lows of 48°F and highs around 63°F.
December completes the year with temperatures ranging from 39°F to 55°F.
Monthly Temperature Summary
| Month | High (°F) | Low (°F) |
|---|---|---|
| January | 48 | 35 |
| February | 50 | 37 |
| March | 56 | 41 |
| April | 66 | 50 |
| May | 75 | 59 |
| June | 80 | 67 |
| July | 88 | 74 |
| August | 90 | 76 |
| September | 83 | 70 |
| October | 73 | 59 |
| November | 63 | 48 |
| December | 55 | 39 |
Average Precipitation in Osaka, Japan
Osaka experiences a range of precipitation throughout the year, with notable differences between the months in terms of rainfall and snowfall.
Average Rainfall in Osaka, Japan
Osaka has a considerable amount of rainfall across the year, with an annual rainfall of 50.35 inches.
The wettest month is June, which sees the highest monthly precipitation. The average number of rainy days in a year is around 98.1 days.
| Month | Rainfall (inches) |
|---|---|
| January | 2.83 |
| February | 2.80 |
| March | 3.58 |
| April | 4.41 |
| May | 5.00 |
| June | 7.52 |
| July | 5.67 |
| August | 5.28 |
| September | 7.40 |
| October | 4.24 |
| November | 2.76 |
| December | 2.86 |
The dry season is typically observed in the winter months, with January being one of the driest months.
Average Snow in Osaka, Japan
Snowfall in Osaka is limited. The city rarely sees significant snowfall due to its relatively mild winters.
January is the coldest month, with occasional snow, but it typically doesn’t accumulate much.
Those interested in snow and ice activities might find the winters relatively dry.
Average snowfall records are minimal, often less than 1 inch per year.
Osaka’s climate doesn’t lend itself to heavy snowfalls, with most precipitation in winter falling as rain rather than snow.
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For precise and up-to-date info, locals and visitors can refer to dedicated weather resources for Osaka during the colder months.
Average Sun in Osaka, Japan
Osaka experiences varying levels of sunshine throughout the year, influenced by the seasons. These changes affect daily routines, tourism, and energy usage.
Average Daily Shortwave Solar Energy in Osaka, Japan
Shortwave solar energy refers to the amount of energy from the sun that reaches the Earth’s surface.
In Osaka, daily shortwave solar energy varies by season, with higher values in summer and lower values in winter.
| Month | Average Daily Solar Energy (kWh/m²) |
|---|---|
| January | 2.7 |
| February | 3.5 |
| March | 4.4 |
| April | 5.3 |
| May | 5.9 |
| June | 5.7 |
| July | 5.6 |
| August | 5.7 |
| September | 4.8 |
| October | 4.0 |
| November | 3.2 |
| December | 2.5 |
During summer, Osaka receives up to 5.9 kWh/m² daily in May.
Winter months see lower values like 2.7 kWh/m² in January, impacting activities reliant on solar energy.
These fluctuations are important for planning activities that depend on sunlight.
Civil twilight, the period after sunset when the sky remains illuminated, also affects how much usable daylight there is.
This period is longer in summer compared to winter, leading to extended daylight hours for outdoor activities.
Average Humidity in Osaka, Japan
Osaka has varying humidity levels through the year. The average annual humidity in the city is about 64%.
The most humid month in Osaka is July with an average humidity of 70%.
In contrast, the least humid month is April, which has an average humidity of 59%.
Here is a table showing average humidity by month:
| Month | Average Humidity (%) |
|---|---|
| January | 58% |
| February | 57% |
| March | 58% |
| April | 59% |
| May | 63% |
| June | 67% |
| July | 70% |
| August | 68% |
| September | 67% |
| October | 64% |
| November | 62% |
| December | 60% |
Dew Point also plays a critical role in how the humidity feels.
In Osaka, the average dew point ranges from 30.5°F in the coldest month of January to around 76°F during the hottest month of August.
Humidity tends to rise during the summer months, leading to a muggy and sometimes uncomfortable environment for residents and visitors alike.
While April is the least humid month, with an average humidity of 59%, it remains a pleasant time to visit the city, as the overall weather conditions are generally mild.
For more detailed information on average humidity in Osaka, Japan, you can visit World Weather & Climate Information.
Average Wind in Osaka, Japan
Wind in Osaka, Japan, varies throughout the year. The city experiences moderate wind speeds due to its coastal location.
The average wind speed is consistent, ranging between 7 and 10 miles per hour. This makes the city relatively calm compared to other coastal areas.
| Month | Average Wind Speed (mph) |
|---|---|
| January | 8.5 |
| February | 9.0 |
| March | 9.2 |
| April | 8.7 |
| May | 8.0 |
| June | 7.5 |
| July | 7.2 |
| August | 7.3 |
| September | 8.0 |
| October | 8.3 |
| November | 8.7 |
| December | 8.9 |
The windiest month is typically February, with average wind speeds at their peak.
Osaka’s wind pattern contributes to its overall climate profile. Understanding these patterns helps in various activities, from daily commuting to planning outdoor events.
These wind speeds are moderate enough to make the climate comfortable while still benefiting from the gentle coastal breezes.
Average Air Quality in Osaka, Japan
The air quality in Osaka, Japan is a mix of both good and moderate levels throughout the year.
In general, Osaka’s PM2.5 levels range between 12.1 and 35.4 μg/m³. This range classifies it within the ‘moderate’ pollution bracket for several parts of the year.
Monthly Breakdown
| Month | PM2.5 Level (μg/m³) | Air Quality Index (AQI) |
|---|---|---|
| January | 14.0 | Moderate |
| February | 13.2 | Moderate |
| March | 15.8 | Moderate |
| April | 13.5 | Moderate |
| May | 12.5 | Moderate |
| June | 11.9 | Good |
| July | 10.3 | Good |
| August | 11.0 | Good |
| September | 12.8 | Moderate |
| October | 13.7 | Moderate |
| November | 14.5 | Moderate |
| December | 15.0 | Moderate |
Osaka experiences the worst air quality in the winter months, with January and December having higher PM2.5 levels.
During summer, the air quality improves. For instance, July and August show a ‘Good’ rating with lower PM2.5 levels.
Keeping track of the air quality is essential for residents and visitors, especially those with respiratory issues. Websites like IQAir provide real-time updates, forecasts, and historical data.
Additionally, AccuWeather also offers local air quality forecasts, helping plan outdoor activities accordingly.
Make sure to check these platforms regularly to stay informed about daily air quality.
Topography of Osaka, Japan
Osaka is located at latitude 34.6937° N and longitude 135.5023° E. This unique positioning contributes to its varied topography.
The city’s elevation varies, with the central urban area being relatively flat, averaging at about 10 feet above sea level. This makes it suitable for urban development and residential areas.
Osaka is bordered by the Osaka Bay, which forms part of the Seto Inland Sea. The coastline is low and flat, which has led to development and significant port activities. The sea temperature in this region varies, usually being warm enough for maritime activities.
Monthly Elevation Data
| Month | Average Elevation (ft) |
|---|---|
| January | 10 |
| February | 10 |
| March | 10 |
| April | 10 |
| May | 10 |
| June | 10 |
| July | 10 |
| August | 10 |
| September | 10 |
| October | 10 |
| November | 10 |
| December | 10 |
Osaka’s surrounding region includes mountains and hills, especially to the north and east. These areas give a contrasting landscape, with some peaks reaching several thousand feet.
The lowlands and flat areas close to the coast are prone to flooding during heavy rains. This necessitates well-planned drainage and infrastructure systems.
Extreme Weather Events that Occur in Osaka, Japan
Osaka experiences a variety of extreme weather events throughout the year. Typhoons, often of tropical origin, are common from late summer to early autumn.
Typhoon Season (June to October)
| Month | Average Rainfall (Inches) | Avg. Temp (°F) |
|---|---|---|
| June | 7.9 | 75 |
| July | 7.4 | 81 |
| August | 4.3 | 86 |
| September | 8.1 | 79 |
| October | 4.2 | 70 |
Typhoons can bring intense rainfall and strong winds. These storms often cause flooding and disrupt daily life.
Summer Heatwaves
During summer, heatwaves are common. Temperatures can exceed 90°F and humidity levels rise, making the weather uncomfortable.
| June | July | August |
|---|---|---|
| 82°F | 90°F | 91°F |
Residents should take precautions to avoid heat-related illnesses, such as staying hydrated and avoiding long periods outdoors.
Heavy Rainfall and Monsoon Circulation
Osaka experiences heavy rainfall due to monsoon circulation. The rainy season, also known as “tsuyu,” typically occurs from June to mid-July.
Monthly Rainfall
| Month | Average Rainfall (Inches) |
|---|---|
| June | 7.9 |
| July | 7.4 |
| August | 4.3 |
Heavy rains during this period can cause landslides and flooding in low-lying areas.
Cold Currents in Winter
Though not extreme, winter months bring the influence of cold currents, leading to cooler temperatures.
| December | January | February |
|---|---|---|
| 52°F | 47°F | 49°F |
Best Time of the Year to Visit Osaka, Japan
Osaka has distinct seasons, each offering unique experiences. Spring and fall are particularly appealing due to mild weather and beautiful scenery, while summer is vibrant and lively despite being hot and humid.
What is Osaka, Japan Like in Spring
Spring in Osaka (March to May) brings moderate temperatures and delightful cherry blossoms. During this period, temperatures range from 50°F to 70°F. This is one of the most popular times for visitors due to the breathtaking cherry blossoms, known as “sakura,” which usually bloom from late March to early April.
The weather is pleasant enough for outdoor activities like walking through parks or attending festivals. Rainfall is moderate, so bringing a light jacket or umbrella is advisable. Spring events include the famous Osaka Castle Cherry Blossom Festival.
| Month | Avg. Temp (°F) | Rainfall (in) |
|---|---|---|
| March | 50 | 3.8 |
| April | 60 | 4.5 |
| May | 70 | 5.1 |
What is Osaka, Japan Like in Summer
Summer in Osaka (June to August) is marked by high temperatures and humidity. The temperature can soar to 90°F, making it the hottest season. Additionally, it coincides with the typhoon season, which peaks in August and September.
Although it’s hot, it’s one of the busiest times for tourism due to various festivals like the Tenjin Matsuri. The city also sees heavier rainfall and occasional typhoons. Despite the rain, summer is ideal for swimming and enjoying seasonal Japanese food available at outdoor markets.
| Month | Avg. Temp (°F) | Rainfall (in) |
|---|---|---|
| June | 77 | 6.5 |
| July | 85 | 6.7 |
| August | 88 | 6.4 |
What is Osaka, Japan Like in Fall
Fall (September to November) in Osaka brings cooler temperatures and vibrant autumn foliage. The weather ranges from 60°F to 75°F, making it comfortable for exploring the city. Autumn leaves start changing color in late October, creating stunning landscapes, especially in parks and temple grounds.
Rainfall decreases compared to summer, and the air is less humid. This season is also a great time to visit cultural festivals like the Osaka International Film Festival.
| Month | Avg. Temp (°F) | Rainfall (in) |
|---|---|---|
| September | 75 | 6.8 |
| October | 65 | 4.8 |
| November | 60 | 3.3 |
What is Osaka, Japan Like in Winter
Winter (December to February) in Osaka is relatively mild compared to other parts of Japan.
Temperatures usually range from 35°F to 50°F. Snowfall is rare, but the city can experience chilly winds.
Despite the cold, winter offers fewer tourists and a quieter experience.
Popular activities include visiting hot springs and enjoying winter illuminations.
Packing warm clothing, such as coats and gloves, is essential.
| Month | Avg. Temp (°F) | Snowfall (in) |
|---|---|---|
| December | 45 | 0 |
| January | 40 | 0 |
| February | 43 | 0 |
Winter is also an excellent time to try traditional hot Japanese dishes like ramen and oden, which are perfect for warming up in the cold weather.