Weather in Okinawa by Month: What to Wear and 2025 Travel Tips

Year-round Weather in Okinawa and Travel Tips

Okinawa Weather Characteristics
1. Spring Weather in Okinawa
2. Summer Weather in Okinawa
3. Autumn Weather in Okinawa
4. Winter Weather in Okinawa
Okinawa Cherry Blossoms and Viewing Tips

Okinawa Weather Characteristics

Photo by Pixta
With its subtropical island climate, Okinawa's weather is distinctly different from the four typical seasons in Japan. Compared to other prefectures in Japan, it has more minor temperature differences and higher humidity, remaining warm year-round.

The average temperature in Okinawa peaks in July and August. However, due to the influence of sea breezes, it rarely exceeds 35°C even in summer.

Although many people associate Okinawa with sunny weather, it has the lowest sunshine rate (days with less than 1mm of rainfall) in the country. This is due to the subtropical climate, which often results in brief rain showers. Therefore, whenever you travel to Okinawa, you should carry a folding umbrella or a light raincoat.

Additionally, Okinawa receives stronger sunlight and higher ultraviolet (UV) levels than other prefectures in Japan. Therefore, it's important to take sun protection measures seriously throughout the year!

Recommended Times for Okinawa Travel

Most people choose to visit Okinawa in summer for activities like snorkeling, which is also the busiest season.

However, we also recommend visiting in spring or autumn since the weather is more pleasant and there are fewer visitors. This makes it easier to enjoy shopping or visiting the Okinawa Churaumi Aquarium comfortably.

Guide to Okinawa's Seasonal Weather

While Okinawa has fewer distinct seasons and is generally warmer than Japan's main island, the weather can change rapidly throughout the day.

When visiting Okinawa during different seasons, it's essential to be aware of specific weather points and how to dress appropriately for your activities. Below are details for each season.

Okinawa in Spring: March to May

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The time from March to late April sees temperatures averaging around 20°C in Okinawa, with relatively stable weather and plenty of sunny days.

Since water temperatures rise more slowly than air temperatures, the sea remains quite cold during this time, making it less suitable for water activities. However, many coastal areas hold a blessing ceremony for the ocean, which you can arrange to attend!

You can wear short sleeves paired with long pants and a light jacket in March and April.

By May, the rainy season begins in Okinawa, with average temperatures around 25°C, allowing for full summer attire. The rainy period typically lasts until late June. In addition to bringing rain gear, it’s advisable to pack flip-flops for a quick change after getting caught in the rain.

Okinawa in Summer: June to August

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Summer is the peak tourist season in Okinawa. The weather officially enters summer in June, with average temperatures around 27°C and sometimes exceeding 30°C.

Before the rainy season ends, the weather can be humid. It is advisable to wear lightweight, breathable, and quick-drying clothing.

Photo by Pixta

In July and August, the weather is typically clear and dry, with temperatures often exceeding 30°C. The sunlight and UV levels are strong, making sunburn easy.

This period is also the peak time for activities like snorkeling. Even in shaded areas or swimming in the water, be sure to reapply sunscreen regularly. Sunglasses and hats are also essential items to have on hand!

It’s essential to note that from July to September, Okinawa is at a peak risk for typhoons. However, this coincides with the summer vacation season, so many choose to travel to Okinawa during this time.

As your departure date approaches, keep an eye on typhoon updates and be prepared with a backup plan for rainy days

Okinawa in Autumn: September to November

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In September, Okinawa is still quite hot, with average temperatures around 28°C, still giving guests a solid summer feeling. After the typhoon season ends and October begins, the weather becomes more stable, with cooler temperatures and fewer days exceeding 30°C. This also signals the arrival of autumn.

In November, the average temperature in Okinawa is about 22.5°C. Days may still be slightly warm, but the overall climate is very comfortable, with significantly reduced rainfall and plenty of sunny days. This pleasant weather coincides with the off-peak tourism season, making it ideal for leisurely sightseeing.

In autumn, evening and morning temperatures in Okinawa can be cooler. It’s advisable to have a light jacket ready for these chilly moments. From mid-October onwards, you can wear thin long sleeves for warmth and sun protection.

While water temperatures still allow for water activities, it’s essential to be mindful about getting cold after exiting the water.

Okinawa in Winter: December to February

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In winter, Okinawa is affected by cold northern winds, and sometimes the temperature can drop below 10°C. Although the weather is often overcast, rainfall is minimal, and snow is rare.

This is another excellent season for sightseeing from a different perspective. While swimming is not advisable, visiting indoor attractions like the Okinawa Churaumi Aquarium can be a fantastic option!

Additionally, this season is suitable for whale-watching tours, offering a chance to observe the magnificent sight of whales swimming at the water's surface. This experience is highly recommended.

In December, the average temperature in Okinawa is about 19°C. While this might not seem cold, the daytime weather can be relatively mild. It’s even possible to wear short sleeves on some days.

During the coldest months of January and February, the average temperature is around 17°C, which isn’t cold enough to require a down jacket. Nevertheless, it’s still important to prepare for the chill. It’s advisable to bring a windproof jacket or coat and adopt a layered approach to dressing, allowing you to adapt to the changing weather throughout the day.

Okinawa Cherry Blossom Viewing Tips

Many people associate Okinawa with its stunning blue sea. However, if you have the chance to enjoy cherry blossoms amidst a pink floral landscape while visiting Japan, it can be an even more delightful experience!

Below we explain when is the best time to view cherry blossoms and autumn maple leaves.

Okinawa Cherry Blossoms

Photo by Pixta

Okinawa is the earliest region in Japan for cherry blossoms to bloom, with pink winter-flowering cherries starting to blossom from late January to February.

When visiting Okinawa during cherry blossom season, you can plan to visit three famous cherry blossom spots in the northern part of the main island: Nago City, Motobu Town, and Nakijin Village.

Various events are held during the cherry blossom season. One of the most notable is the Motobu Yaedake Cherry Blossom Festival, where some viewing spots feature illuminated night cherry blossoms after sunset, creating a magical atmosphere.

Okinawa Maple Leaves

Due to the consistently higher temperatures year-round and the lack of mountainous terrain, Okinawa does not have areas where maple leaves turn red. Therefore, it isn't easy to enjoy beautiful autumn foliage.

However, if you visit Okinawa from December to mid-February, you can see the vibrant red leaves of the Ryukyu Wild Wax Tree, which offers a unique charm.

Also, northern Okinawa boasts lovely locations with cosmos flowers, which are best viewed in December. Check the article below for specific locations.

Enjoy Exploring Okinawa

While this guide for Okinawa is based on historical averages, the weather can still be unpredictable. Therefore, always pay attention to Okinawa's weather forecasts and be well-prepared when traveling.

It's also wise to have flexible backup plans for your itinerary so that the weather won't affect your trip!