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Yamaguchi

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Yamaguchi Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Yamaguchi year round climate

  • Spring (March–May): Average 51–66°F, mild and comfortable climate, but with relatively high rainfall, especially in April. Common activities: flower viewing, hiking. Recommended clothing: light jacket, long-sleeved shirt, rain gear.
  • Summer (June–August): Average 73–83°F, hot and humid, with the most rainfall in July. Common activities: beach activities, visits to summer resorts. Recommended clothing: light and breathable clothing, short sleeves, shorts, sun hat.
  • Autumn (September–November): Average 65–78°F, pleasant climate, with relatively high rainfall in September. Common activities: maple viewing, mountain climbing. Recommended clothing: long-sleeved shirt, light jacket.
  • Winter (December–February): Average 40–43°F, cold and dry, with low rainfall. Common activities: hot spring trips, indoor activities. Recommended clothing: warm jacket, sweater, scarf, hat.

Yamaguchi climatological average

Annual average temperature: approx. 61.9°F / Annual rainfall: approx. 1974 mm / Summer humidity: 70%–80% / Rainiest month: July

Yamaguchi monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
40.6°F
54.8
February
42.8°F
102.3
March
51.1°F
136.3
April
60.3°F
212.4
May
66°F
144.4
June
73.6°F
235.5
July
81.7°F
394.4
August
83.8°F
160.6
September
78.6°F
258.5
October
65.1°F
91.1
November
55.8°F
136.4
December
43.2°F
48.1

Yamaguchi weather for the next seven days

9/23
Wednesday
Sunny
79°F/59.1°F
9/24
Thursday
Overcast
79.1°F/61.1°F
9/25
Friday
Overcast
76°F/62.6°F
9/26
Saturday
Light rain shower
67°F/65°F
9/27
Sunday
Fog
74.8°F/65.2°F
9/28
Monday
Fog
74.4°F/64.9°F
9/29
Tuesday
Light rain shower
68.7°F/62.4°F

Yamaguchi Frequently Asked Questions and Useful Information for Travel

Is it worth going to Yamaguchi?

Yamaguchi is a highly recommended destination for travelers seeking to immerse themselves in Japan's rich culture and history. Known for its breathtaking natural scenery, charming ancient castle towns, and beautiful coastlines, Yamaguchi offers a unique travel experience on the westernmost tip of Honshu. Its distinct landscapes and historical significance make it a must-visit.

What is Yamaguchi famous for?

Yamaguchi is renowned for its exceptional culinary traditions, especially its world-class fugu (pufferfish) dishes and abundant fresh seafood, owing to its coastal location. The prefecture also boasts striking natural beauty, including impressive limestone caves and picturesque beaches. Historically, it's celebrated for its well-preserved samurai castle towns like Hagi and its pivotal role in the Meiji Restoration.

What is the best time of year to visit Yamaguchi?

For general outdoor tourist activities in Yamaguchi, the best period to visit is from late August to mid-October, with the peak season typically falling in the third week of September. During this time, the weather is generally pleasant for exploring the region's attractions.

How many days should I spend in Yamaguchi?

The ideal duration for a visit to Yamaguchi can range from 2 to 5 days, depending on your itinerary and the number of places you wish to explore. This allows ample time to experience its diverse attractions, from historical sites to natural wonders.

What are some must-try culinary experiences in Yamaguchi?

Yamaguchi is a culinary paradise, particularly famous for its fugu, with Shimonoseki being the fugu capital of Japan, offering expertly prepared and incredibly fresh pufferfish. Beyond fugu, enjoy the prefecture's general abundance of delicious seafood. Don't miss out on sampling locally produced sake and delightful regional sweets.