Shizuoka Weather in June
Season: SummerIn short: relatively hot; rainy season from early June; longest daylight hours over the year; admire hydrangeas
Comparatively Hot
Average Temperature: 19-26℃ (66-79℉)With the arrival of summer, June in Shizuoka features relatively hot weather: daytime temperatures remain more than 25 degrees Celsius (77 degrees Fahrenheit) for nearly the total month, and can even reach up to 35℃ (95℉) for 2-3 days in the second half of the month. But the bright side is that it becomes more pleasant during early mornings and nights: temperatures normally fluctuate between 15℃ (59℉) and 20℃ (68℉), and rise to 20-25℃ (68-77℉) at the end of the month.
Besides, continuous rainfall usually brings down high temperatures, in the range of 24-27℃ (75-81℉).
High Precipitation & Humidity
Average Precipitation: 285 mm (11.2 in)Average Rainy Days: 18 days
The rainy season typically commences in early June in Shizuoka, which sees a rise in its monthly precipitation and rainy days. Short-duration light rain accounts for a great proportion, followed by heavy rain. Occasionally, the rain falls on and off within a day; and there may be one or two all-day rains. Therefore, you’d better bring along a compact umbrella all the time during your outdoor visit.
Because of increased rainfall, the humidity of the month is among the highest of the year, at around 82%. As the climate in Shizuoka gets hotter in the second half of June, that oppressive feeling you get is intensifying.
Longest Daylight Hours All Year Round
Sunrise Time: 04:37 - 04:38Sunset 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. Ample daylength allows your itinerary to be more flexible and leisurely. Though frequent rainfall causes 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 mostly exceeded 10 in 2025.
How to Dress in Shizuoka in June
Upper & Lower: Given the humid air 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 can reflect sunshine to reduce your feels-like temperature. Bottom: Besides comfort, the shoes you pack should be waterproof and non-slip, paired with boat socks.
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 leads to some inconvenience for your trip, blooming hydrangeas in the rain look even more vibrant.
Practical Information 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 fully understand Mount Fuji.
2. As the end of June is approaching, hot weather is more likely to occur. Jogasaki Coast and Mount Omuro are usually windy, bringing you a touch of coolness. You’re advised to visit these places on a clear day, since their natural beauty appears more attractive with the backdrop of blue sky and bright light.
