Shizuoka Weather in August
Season: SummerKey words: hottest month year round; lots of rainfall; Mount Fuji; water sports; fireworks shows
Hottest Time over the Year
Average Temperature: 24-31℃ (75-88℉)Shizuoka in August steps into its hottest time in a year: day temperatures mostly range from 30℃ (86℉) to 34℃ (93℉), but the first half of the month is subject to severely hot weather with the high exceeding 36 degrees Celsius (97 degrees Fahrenheit). Therefore, heatstroke prevention measures are essential in this month, such as drinking plenty of water and bringing a compact, portable fan or cooling wet wipes. The summer heat eases somewhat in the evening, when the temperature declines to 24-27℃ (75-81℉).
Thanks to sea winds, the perceived temperature on the Izu Peninsula tends to be lower than the actual one, so it’s usually highly favored as a summer resort for travelers. At Mount Omuro and Izu Highland, you may feel coolish in the early morning and at night. Thus, prepare a light jacket if you intend to visit these places during these periods.
Lots of Rainfall
Monthly Relative Humidity: around 81%Though Shizuoka’s average precipitation in August plunges to 230 mm (9.1 in) after the rainy season, it is still at a relatively high level. 16 rainy days are expected during this month, with frequent light showers. The duration of rainfall is 6 hours at most, but it may rain intermittently in a day. In some years, Shizuoka in August possibly sees rainy weather for five consecutive days. If you encounter such a situation, adjust your itinerary to visit indoor attractions, including Gotemba Premium Outlets, Chibimarukochan Land and Shizuoka Prefectural Museum of Art.
The sultry air in August makes you sweat more even with the slightest movement, so pack extra dry sets of clothes for changing.
Typhoon
Shizuoka is more vulnerable to typhoons, with an average of 0.8 typhoons approaching here in August. Typhoons often result in heavy downpours and strong winds, but in more severe cases, there may be secondary disasters like floods and mudslides, eventually leading to traffic paralysis and the closure of scenic spots. Therefore, regularly check typhoon warnings and make a backup plan, if you’d like to visit Shizuoka in August 2026.Warm Sea Water
August is one of the best times to enjoy multiple water sports, as sea water temperatures reach a comfortable level, at around 24-28℃ (75-82℉). Most beach resorts in Shizuoka open until the end of the month. Different beaches in Shizuoka have their own advantages:1. Shirahama Ohama Beach: Its clear waters are pretty suitable for snorkeling and diving.
2. Sotoura Beach: Thanks to shallow water, it is a great destination to take children for fun; it enjoys a quiet and laid-back atmosphere.
3. Tatadohama Beach: As a venue for national surfing competition, all surfers can enjoy the joy of riding the waves.
Generally Rich Daylength & Sunshine Hours, Intense UV Rays
Sunrise Time: 04:58 - 05:21Sunset Time: 18:17 - 18:52
Daytime Hours: 12 hours 55 minutes-13 hours 54 minutes
Sunshine Hours: around 6.5 hours/day
UV Index: 9 - 11
Daily Outfits for Shizuoka Trip in August
Plain Areas: Given Shizuoka’s muggy climate in August, wear short sleeve shirts and skirts or thin sweatpants of good breathability, plus comfy casual shoes. Pack sun clothing for protection against strong sunlight and cold air conditioning. Considering you may visit many shrines and temples, the clothes are better to cover your shoulders and knees. Beach Areas: To perfectly match the summer beach flavor, Hawaii shirts, loose shirts and slippers are advised for males, while ladies can wear bright-colored beach dresses and sandals. Mountain Areas: The official climbing season of Mount Fuji is ongoing in August. For climbers, the following items are required: quick-drying short sleeve shirts, waterproof hiking pants, 3-in-1 jackets with a removable down liner, thick socks, high-top hiking shoes, sand-resistant shoe covers and alpenstocks.Others:
1. Raincoats are more practical for hikers, while dual-purpose umbrellas for rainy and sunny days are suitable for other visitors.
2. Pack sun hats, sunglasses, sun scream and mosquito repellent.
How to Visit Shizuoka in August
1. Every August, Atami hosts four spectacular fireworks shows, each of which sets off roughly 5,000 fireworks. Atami Nagisacho Park provides an unobstructed, expansive view, drawing many tourists who arrive early to get a spot.2. The nearly-700-meter stretch from Mishima Taisha Shrine to Mishima Hirokoji Station comes alive with Mishima Grand Festival on August 15-17. You’ll enjoy the ornate float competition, Yoritomo Flag Raising Procession, hand-held fireworks performance, Noheibushi and Mishima Samba Dance Parade, as well as Yabusame that performers shoot an arrow while riding a horse.
3. Cruising on Suruga Bay is highly recommended to enjoy the uniquely captivating view of Mount Fuji from the sea, with refreshing sea breezes in hot summer. With luck, you may see dolphins or whales.
4. Abalones caught in July and August are at their most succulent. During your trip to the Izu Peninsula, whose waters are right in the peak period of abalone harvest, why not pick a restaurant to savor a delicious abalone?
