Shizuoka Weather in June

Season: Summer
Key words: A bit hot and muggy; rainy season starts in early June; hydrangeas start to bloom

Become Hot

Average Temperature: 19-26℃ (66-79℉)

With the arrival of summer, June in Shizuoka features hot weather: high temperatures remain above 25 degrees Celsius (77 degrees Fahrenheit) nearly the whole month, and even reach up to 35℃ (95℉) sometimes in the second half of the month. Early mornings and nights can be pleasant, with temperatures normally fluctuating between 15-20℃ (59-68℉) in early June, and 20-25℃ (68-77℉) at the end of the month.

Mount Fuji and Hydrangeas

High Precipitation & Humidity

Average Precipitation: 285 mm (11.2 in)
Average Rainy Days: 18 days

Rainy Scene in June

The rainy season typically commences in early June in Shizuoka, which brings a rise in precipitation and rainy days. Short-duration light rain is frequent and accounts for a great proportion, followed by heavy rain. Occasionally, the rain falls intermittently within a day; and there may be one or two days with continuous rain. Therefore, you’d better bring along a compact umbrella all the time during your outdoor visit. 

The relative humidity rises to around 82%, among the highest levels of the year, which makes you feel hotter than the temperature data indicates. Besides, a mix of frequent rainfall, high humidity and high temperature often leads to a muggy climate in June in Shizuoka, very uncomfortable.

Longest Daylight Hours All Year Round

Sunrise Time: 04:37 - 04:38
Sunset Time: 18:57 - 19:07
Daylength: 14 hours 20 minutes - 14 hours 28 minutes 
Average Sunshine Hours: about 4.5 hours/day

The duration of daytime throughout the month varies little, with an average of over 14 hours/day. Ample daylength allows your travel to be more flexible and leisurely. Though frequent rainfall and cloudy skies lead to short sunshine hours, the UV rays should not be sniffed at. Generally, the UV index hovers around 8-10 in June, but there have been exceptions: the index once exceeded 10 in 2025. 

How to Dress in Shizuoka in June

 Upper & Lower: Given the humid air and hot weather during this month, choose moisture-wicking clothes such as loose short-sleeved T-shirts and cotton pants or dresses. It’s a smart decision to pack sun clothing, which not only shields against harsh sunlight, but also keeps you warm in air-conditioned places such as buses and shopping malls. Moreover, light-colored clothing absorbing less sunshine is better than dark one.

 Bottom: Besides comfort, the shoes you pack should be breathable. You also need a pair of water-proof shoe covers in rainy days.

 Accessories: Don’t forget to pack UV-protective items including sunblock, sun hats and sun glasses.

Seasonal Highlight: Elegant Hydrangeas

When it comes to June in Shizuoka, a must-do activity is to appreciate beautiful hydrangeas in full bloom. There are two highly recommended destinations: one is Shimoda Park, where over three million flowers stretch all the way to the seaside, pulling you into a violet fairyland; the other is Shuzenji Temple, boasting a perfect blend of time-honored architectures and blue-and-purple hydrangeas. Though the rainy season causes some inconveniences for your trip, blooming hydrangeas in the light rain look even more vibrant.

Beautiful Girls in Kimono

Bamboo Forest Path at Shuzenji

Useful Tips for Shizuoka Trip in June

1. In case it rains during your visit in June 2026, replace outdoor attractions with indoor ones, like Gotemba Premium Outlets - a comprehensive mall of shopping and dining, Chibimarukochan Land instantly recalling your childhood memories, Fujinokuni Tea Museum with a variety of hands-on tea courses, as well as Mt. Fuji World Heritage Centre - a good channel to know more about Mount Fuji.
2. It is usually windy near Jogasaki Coast and Mount Omuro, bringing you a touch of coolness. You’re advised to visit these places on a clear day, since they appear more attractive and beautiful with the backdrop of blue sky and bright sunlight.

Shizuoka Weather by Month