Summer in Osaka is a season of contrasts. You'll find yourself amidst blooming hydrangeas and sunflowers, with the city's traditional festivals, bon dances, and fireworks displays adding to its charm.

However, navigating the heat is essential. Nemi Lin, who has spent five years in Osaka, offers invaluable advice on this front. She shares practical tips on summer attire to ensure comfort and style, even in the heat.

Armed with Nemi's insights, you're well-prepared to fully embrace and enjoy Osaka's vibrant summer offerings, effortlessly handling the heat.

Osaka sits in a basin, surrounded by tall buildings that hinder natural airflow, leading to the city's infamous urban heat island effect. As a result, summers here can be intensely hot, with temperatures often climbing above 30℃ (86℉).

The rainy season, or "tsuyu" as it's called in Japanese, arrives in June, bringing with it a significant amount of rainfall. A lightweight, compact umbrella that's suitable for both rain and sunshine is a wise addition to your packing list.

Additionally, the season can bring typhoons. If you're planning a visit, staying updated on weather forecasts and typhoon tracking is crucial to avoid any unforeseen issues.

To help you navigate the summer heat in style, Nemi, a Taiwanese editor at LIVE JAPAN who has called Osaka home for five years, offers her top tips for enjoying the city.

In June, Osaka transitions into the hot, humid summer season. While the average temperature hovers around 23℃ (73.4℉), occasional spikes above 30℃ (86℉) are not uncommon, signaling the onset of summer's heat. It's time to bring out the sunscreen and insect repellent as the summer weather kicks in.

Additionally, June marks the onset of the rainy season, lasting through July. During this time, rainfall peaks, with monthly precipitation exceeding 200mm, making it the rainiest period of the year. The weather can be unpredictable, swiftly switching from sunshine to rain. Carrying a versatile umbrella that shields from both sun and rain becomes indispensable during this time. Don't forget to pack one when visiting Osaka in June!

With June marking the start of summer, it's the perfect time to switch to short-sleeved shirts, tank tops, and sandals!

To minimize sun exposure, consider applying sunscreen regularly or wearing UV-resistant clothing.

Keep in mind, Osaka experiences its rainy season from June to July, often with frequent showers. Carrying a versatile umbrella and packing rain gear for children, such as raincoats and stroller covers, is advisable to keep everyone dry and healthy during your travels.

In June, despite the rain, the beauty of hydrangeas captivates visitors. These flowers, particularly charming after showers, can be found even in Osaka's bustling areas like Namba and Shinsaibashi. Notably, the Nagai Botanical Garden, accessible via the Midosuji Line, is renowned for its stunning hydrangea displays.

In addition to hydrangeas, the garden hosts nighttime art exhibitions by teamLab, merging natural splendor with artistic innovation. Remember, teamLab exhibitions require a separate ticket, not covered in the garden's entrance fee.

July is the peak of summer in Osaka, with temperatures often below 30°C (86°F) but daily highs frequently surpassing 30°C (86°F), especially around noon, making it the hottest month.

Precautions against UV rays and staying hydrated are crucial. Although the rainy season typically ends by July, making all-day showers rare, occasional rain means carrying rain gear is still wise.

Mosquito activity increases, so using repellents like sprays or patches is recommended. However, some repellents might contain ingredients banned locally, so it is advisable to buy them after arriving in Japan.

In July 2023, Osaka experienced temperatures over 30°C (86°F) daily. Beyond sunscreen, staying hydrated is key, with salt-containing drinks being particularly effective for both hydration and salt replenishment. This approach has been crucial for avoiding heatstroke during Osaka's summers.

Mosquito activity increases with the heat, so using repellent sprays or patches is important, especially for protecting young children who may be more vulnerable. Consider buying mosquito repellent products like stroller strips in Japan; they're airplane-friendly, allowing worry-free shopping.

Visiting Osaka in July also offers the chance to experience traditional festivals and bon dances, akin to those seen in Japanese dramas and anime, making for unforgettable memories.

In July, Osaka hosts numerous traditional events including festivals, bon dances, and fireworks displays throughout the city. I particularly recommend the Tenjin Matsuri held at the end of July!

This festival has been celebrated in Osaka for over 1,000 years and is one of Japan's three major festivals. It's definitely worth experiencing, especially the grand finale featuring the Tenjin Fireworks Display, which is truly magnificent. I suggest purchasing tickets for designated seating areas to enjoy the fireworks comfortably. However, since it's an outdoor event, remember to stay hydrated to avoid heatstroke!

August marks the end of summer in Osaka, but the heat remains intense, on par with July. Daily highs are usually around 30°C (86°F), with occasional peaks near 40°C (104°F), making sunscreen and hydration essential.

September is the peak of typhoon season, though August may also experience typhoons. It's vital to stay informed through weather reports and have an emergency plan ready.

Like July, August sees random showers, so having rain gear handy is wise. Also, remember to bring sunscreen, mosquito repellent, and to stay hydrated for both adults and children.

August continues July's trend with scorching temperatures in Osaka. Rainfall might bring temporary respite, but the heat largely persists. For children, cooling necklaces, which can be refrigerated and reused, are highly recommended. They offer immediate cooling and are effective even in air-conditioned environments.

For outdoor activities like sports events or festivals, cooling patches applied to the forehead or neck can enhance comfort during the heat.

Summer in Osaka isn't complete without water activities, and Hirakata Park's summer water park is a prime spot for both adults and children to enjoy. Featuring attractions such as lazy rivers and observation pools, it offers the perfect escape from the summer heat.

Additionally, the convenience of wearing your swimsuit to enjoy other amusement park rides during the water park season adds to the appeal. It's an excellent destination for everyone to relax and have fun!

"The rainy season in Osaka typically occurs between June and July. During this period, rainfall can be quite significant. If you're visiting during this time, it's advisable to bring a compact umbrella that can shield you from both rain and sun!"

"Absolutely! Besides the famous Tenjin Matsuri in July, Osaka hosts numerous fireworks festivals in August, such as the Naniwa Yodogawa Fireworks Festival. If you're looking to immerse yourself in the local culture, you can also participate in community-hosted bon dances. There's one near my neighborhood, and while the venue may be small, you'll still find food stalls and fireworks to enjoy!"

"Typically, September is the peak season for typhoons in Osaka. However, it's possible to encounter typhoons passing through from June to October. Therefore, it's essential to stay vigilant by monitoring weather forecasts regularly and having contingency plans in place. This way, you won't be caught off guard by unpredictable typhoons, ensuring your enjoyable trip to Osaka remains a pleasant memory!"

During the summer months of June to August in Osaka, the heat and rain can indeed pose some challenges for travelers. However, the season also brings unique experiences like hydrangea blooms, festivals, and bon dances that are exclusive to summer.

By simply carrying a folding umbrella, staying hydrated, and making use of cooling accessories, you can comfortably explore Osaka during the summer.

Lastly, don't forget to stay updated with the weather forecast, keep an eye on typhoon movements, and have contingency plans in place for your travels as you enjoy this fun season in Osaka!

*Reference data source: Japan Ministry of Land, Infrastructure, Transport and Tourism, Meteorological Agency website.

*The content of this article is based on information as of March 2024. Actual conditions may vary from the content of this article.