Okinawa Weather in April

Season: Spring

Overview:
1. Okinawa’s weather in April is generally warm, perfect for outdoor activities.
2. The rainfall in April is not very high, but rain gear is necessary.
3. April is one of the best months to visit Okinawa. Apart from pleasant weather, it can also offer a peaceful and budget-friendly travel experience.
4. Key highlights this month include the Ryukyu Kaiensai Fireworks Festival and Lily Festival at Ie Village.

Crystal-clear Waters

Temperatures

Okinawa’s climate in April is increasingly warm, with an average temperature ranging from 19-24°C (66-75°F). April in Okinawa feels just right and pleasant, with most days’ daytime maximum temperatures below 27 degrees Celsius (81 degrees Fahrenheit), but never really dropping under 15 degrees Celsius (59 degrees Fahrenheit), which is perfect for spending the whole day outdoors. Sometimes, the highest temperature spikes up to 30°C (86°F), but it is quite rare.

There is one thing that you need to keep in mind: the weather on rainy or cloudy days tends to be a little cooler, with temperatures hovering around 17-23°C (63-73°F). And the early mornings and late evenings might surprise you with a sudden cool sense. Thus, add clothes during those moments.

Sunny Day in Okinawa

Rainfall & Humidity

Okinawa in April receives moderate rainfall, which is 166 mm over 10 rainy days on average. April’s weather is mostly sunny, with several short showers followed by a bit of mist. All-day downpours are unusual, so outdoor explorations are still possible on some rainy days. If you do get caught in a shower, just find a shelter and wait for a while. The sky usually clears quickly, and the air becomes fresher.

Okinawa’s air in April is neither sticky nor dry, with the average humidity level of about 74 %.

Water Temperature in Okinawa April

While the air is warming up fast, the sea takes its time, with average water temperatures about 23°C (73°F) in April. It’s totally ok to play water at the beach. Of course, you can jump in the ocean for a swim, snorkel, or dive. Just remember to wear a wetsuit to add comfort and warmth, and don’t linger too long in case you get chilly.

Sunshine Hours & Daytime Hours

Sunshine Hours: about 5 hours
Sunrise: 5:52-6:20
Sunset: 18:46-19:00
Daytime Hours: 12 hours 26 minutes - 13 hours 8 minutes

April brings more sunshine hours to Okinawa, perfect for sightseeing spots like Nakijin Castle, Shuri Castle, or the famous Blue Cave. It’s also an ideal time to hop over to the outlying islands and enjoy the beaches, such as Tokashiki Island and Zamami Island. The sun makes the water look crystal clear and even more stunning.

However, you need to notice that the UV index shoots up to 11 this month. Therefore, sun-protection measures are a must, even on overcast days.

Daytime stretches to nearly 13 hours, giving you extra time to explore. Since Okinawa is quite big, its attractions are spread out, and public transport isn’t that convenient, the longer daylight is quite necessary and helpful for you to have a trip without any rush.

Stunning Beach View

Is April a Good Time to Visit Okinawa?

Yes, April is one of the best times to visit Okinawa. Okinawa’s favorable temperature in April provides a comfortable travel experience for visitors. Occasional rain won’t disrupt your travel plans since it tends to have a short duration. Besides, Okinawa in April enjoys fewer crowds and more affordable travel costs. More noticeably, the well-known Ryukyu Kaiensai Fireworks Festival takes place this month. If you plan to visit the islands in 2026, don’t miss it.

What to Wear in Okinawa in April?

Upper Clothes: You are advised to wear breathable T-shirts. A light jacket is also necessary to deal with the strong UV rays and coolness in the early mornings and late evenings.

Bottom Clothes: Opt for shorts, thin sweatpants, skirts or dresses.

Footwear: It’s a good idea to wear comfortable sneakers to keep comfortable even after a long walk. If you head to the beach, sandals or flip-flops are more suitable for you.

Accessories:
It’s always helpful to pack sun-protection items, including sunscreen, a sun hat, and sunglasses.
Considering the occasional rainfall, don’t forget to prepare an umbrella or a rain coat.
Insect repellent is necessary as mosquitoes are prone to breeding with rising temperatures.

Travel Highlights

1. Whale Watching: Early April

Don’t miss the final chance to spot humpback whales before they leave Okinawa’s warm waters for colder seas. It must be an unforgettable experience to watch mothers and calves gliding through the waves. They won’t be back until December, so this really is your last call.
Tips:
1. Prepare motion sickness medication as the boat might be bumpy.
2. Due to the strong winds and intense sunshine at sea, don’t forget to wear a light jacket and sun hat.

2. Ryukyu Kaiensai Fireworks Festival: Mid-April

It is known as Japan’s earliest summer fireworks show, held in April each year. Around 10,000 fireworks will light up the ocean during the festival, providing a stunning night view. There will also be traditional Eisa performing shows, involving traditional Okinawan dancing, drumming and chanting. Plus, the festival will also offer various food stalls.
Tips:
1. It’s highly recommended to book the ticket on the official website at least one month earlier, as it is one of the most popular events in Okinawa.
2. You’d better arrive at the beach by 16:00 to secure a good spot considering the fireworks kicking off at 19:00.

Firework at Night

3. Lily Festival: Late April to Early May

It is an annual festival celebrating the lily blossoms at Ie Village Lily Field Park every spring. Visitors can walk through fields of pure while lilies, and appreciate around 100 lily varieties. Among them, the Easter lilies are quite popular, so don’t miss them.
Tips:
1. Ie village sits off Okinawa’s mainland and requires a 30-minute ferry to reach. Here is a great day plan: visit the lily fields in the morning, then back to the mainland to explore Okinawa Churaumi Aquarium or Nakijin Castle in the afternoon.
2. Weekends can be crowded, so try to visit on a weekday for a quieter experience.