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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 10.6–18.9°C, 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 23.1–28.8°C, 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 18.4–25.9°C, 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 4.8–6.2°C, 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. 16.6°C / Annual rainfall: approx. 1974 mm / Summer humidity: 70%–80% / Rainiest month: July

Yamaguchi monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
4.8°C
54.8
February
6°C
102.3
March
10.6°C
136.3
April
15.7°C
212.4
May
18.9°C
144.4
June
23.1°C
235.5
July
27.6°C
394.4
August
28.8°C
160.6
September
25.9°C
258.5
October
18.4°C
91.1
November
13.2°C
136.4
December
6.2°C
48.1

Yamaguchi weather for the next seven days

9/23
Wednesday
Sunny
26.2°C/15.7°C
9/24
Thursday
Overcast
26.8°C/16.5°C
9/25
Friday
Overcast
25.9°C/16.8°C
9/26
Saturday
Light rain shower
20.5°C/19.1°C
9/27
Sunday
Light rain shower
22.6°C/18.6°C
9/28
Monday
Overcast
26.2°C/18.9°C
9/29
Tuesday
Light rain shower
21°C/17°C

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.