Nagano Weather in April

Nagano in April

Season: Spring
In Brief: Sunny, Pleasantly Warm, & Prime Cherry Blossom Season

In April, Nagano ushers in spring. In the foothills and downtown area of Nagano, the climate is warm, with peach and cherry blossoms blooming in abundance throughout the month. Whether you're eager to savor the beauty of the blossoms, embark on a scenic hike, or unwind in a soothing onsen, April is the perfect time to visit Nagano.

Temperature

Avg. Temperature Range: 2~13℃/36~56℉

In early April, Nagano's weather can be slightly cold, temperatures hovering around 15°C (59°F) by day and dipping to 5°C (41°F) at night. As April advances, temperatures in Nagano rise over 20℃ (68°F), bringing warmth to its diverse flora and fauna. Notably, a significant temperature swing allows visitors to shed morning layers by mid-afternoon and enjoy potentially scorching sunshine, highs topping out at 28°C (82°F).

Precipitation

Rainfall: 54mm
Snowfall: 30mm

Avg. Rainy Days: 9

In April, Nagano boasts predominantly sunny weather, with just 5 rainy days downtown and 8 in the mountains. As ice thaws and snow melts, essential nourishment flows to rivers, fields, and valleys, fostering a pleasantly humid atmosphere. Meanwhile, Nagano's mountain regions still experience light to moderate snowfall, totaling 3 to 9 snowy days this month.

Sunrise & Sunset

In April, Nagano boasts about 13 to 14 hours of daylight, with sunrises ranging from 4:54 to 5:32 and sunsets from 18:09 to 18:34. For photographers, the golden hours between 1 and 5 PM offer the best light, shifting from a soft gold to a warm yellow, beautifully highlighting Nagano's vibrant spring against the azure sky.

Nagano April Highlight: Cherry Blossom

Enjoy the Cherry Blossoms in Nagano

Nagano, nestled at higher altitudes with cooler climates compared to Tokyo and Osaka, offers a unique April attraction: its late cherry blossom season, providing a second chance to immerse in the enchanting beauty of cherry blossoms.

In 2025, Nagano's cherry blossoms are expected to bloom from April 8th to April 23rd, peaking between April 12th and April 18th. Higher elevations, such as the Shiga Plateau, will see blossoms approximately one week later than the time.

Packing List

Upper Body

In early April, a thin down jacket or wool coat is essential for Nagano's residual chill, particularly at higher elevations. By mid- to late April, opt for lighter options like thin sweaters, light jackets, hoodies, T-shirts, or long dresses.

Bottoms

From early to mid-April, wear warm and windproof bottoms like thick jeans or slacks layered with leggings to protect against low temperatures and chilly winds. By late April, dress down to regular pants or long skirts.

Shoes

When in the mountains, particularly in the upper snowy April, bring snow boots with non-slip crampons. For other days, pick up sneakers and rain boots in case of slushy roads.

Accessories

A hat is always necessary to bring warmth in cold conditions and protect you from intense midday sunshine. Hiking poles will assist you in climbing Nagano’s mountains more easily.

Seasonal Tip: Pollen Allergy Items

Bring allergy medications, such as nasal sprays, and wear protective gear like masks, glasses, and hats when outdoors. Regularly clean your hands and face with hand sanitizer and wipes to minimize pollen exposure and enjoy the beauty of cherry blossoms without discomfort.

Top Things to Do in Nagano in April

1. Admire Cherry Blossoms in Hakuba Valley

In Hakuba Valley, April's warm sunshine brings everything to life. From the observatory in Oide Park, the Japanese Alps glisten under the spring sun, their silver peaks still capped with snow. At around 5:30 PM on a clear day, you can sit on the benches near the observatory with a cup of tea, enjoying the evening glow that paints the snow-capped mountains in a radiant golden hue. Below, a translucent blue river winds through quaint cottages, green cedars, and blooming pink forests, offering visitors a vibrant and diverse view of Nagano that is truly unique during this time of year.

Hakuba in April

2. Hike through the Snow Tunnel in Yuki no Ōtani

Yuki no Ōtani, also called Japan’s Alpine Route, is a snow sightseeing route extending 32 km (20 miles) from Tateyama Station to Ogizawa Station. In this high-elevated area, snow accumulates 14~20 meters (15~22 yards) high from November to March, forming a spectacle of giant snow walls beside the way.

In April, visitors can experience the grandeur of Yuki no Ōtani's snow walls at their peak height. As you stroll through this pristine white tunnel beneath a crystal blue sky, you may feel as if nature itself is washing away your worries.

3. Enjoy Skiing & Onsen at Nozawa Onsen Snow Resort

Entering spring, Nozawa Onsen Snow Resort keeps offering powder snow for skiers for its location at a high elevation. Beyond skiing, pick one of the thirteen free onsen in Nozawa Onsen Village to relax. If you’d like to extend your cozy experience, take a stroll along the village paths and visit local shops. There, you can find some specialties like Shino Miso, a local savory sauce, and learn more about the stories of Nagano at a nearby bookstore.

Nozawa Onsen

Nagano Travel Tips in April

1. Most mountain areas in Nagano open in April, such as the Yuki no Ōtani Alpine Route (April 15 to November 30, 2025) and Kamikochi (mid-to-late April to mid-November).

2. Note that some ski resorts, like Karuizawa and Hakuba Iwatake, close in April. Check ahead to avoid disappointment.

3. Many tourists are drawn to Togakushi Shrine during winter for its snow-covered shrine and towering ancient cedar trees. While such a sight may not be ideal in April, it's still fascinating to see the shrines emerge from thin snowy blankets as tiny green plants sprout on their roofs, creating a scenic view of a different kind.