Chugoku & Shikoku Weather Guide

Hagi, Tsunoshima & Akiyoshidai Weather & What to Wear

Hagi, Tsunoshima, Akiyoshidai, Kintaikyo Bridge

The Yamaguchi Prefecture area covering Hagi with its preserved castle-town streets, Tsunoshima with its bridge over blue sea, the Akiyoshidai karst plateau and Akiyoshido Cave, and the wooden arched Kintaikyo Bridge. Hagi, on the Sea of Japan side, has many cloudy days in winter (temperatures are for Hagi City).

January low
2.4℃
August high
31.1℃
Max snow depth
2cm
Search by dates and destination
Forecast

Forecast: Today & the Next 7 Days

JMA forecast issued Oct 22, 11 AM

Every 3 Hours: Today & Tomorrow

  1. Today
    3 PM
    Sunny
    21°
    ☂ 0%
    6–9m/s
  2. 6 PM
    Sunny
    18°
    ☂ 0%
    6–9m/s
  3. 9 PM
    Sunny
    15°
    ☂ 0%
    6–9m/s
  4. Tomorrow
    12 AM
    Sunny
    14°
    ☂ 0%
    3–5m/s
  5. 3 AM
    Sunny
    14°
    ☂ 0%
    3–5m/s
  6. 6 AM
    Sunny
    13°
    ☂ 0%
    3–5m/s
  7. 9 AM
    Sunny
    17°
    ☂ 0%
    3–5m/s
  8. 12 PM
    Cloudy
    22°
    ☂ 10%
    3–5m/s
  9. 3 PM
    Cloudy
    22°
    ☂ 10%
    3–5m/s
  10. 6 PM
    Rain
    20°
    ☂ 50%
    6–9m/s
  11. 9 PM
    Rain
    19°
    ☂ 50%
    6–9m/s

Weather and wind are for the wider area; temperature is for the main forecast point. Chance of rain is for the 6-hour period.

  1. Today
    10/22(Thu)
    Sunny
    22°/16°
    Observed: 16°
    ☂ 0%
  2. Tomorrow
    10/23(Fri)
    Sunny, then rain
    23°/13°
    ☂ 50%
  3.  
    10/24(Sat)
    Rain
    —/—
    ☂ 80%
  4.  
    10/25(Sun)
    Cloudy, rain at times
    —/—
    ☂ 70%
    Reliability A
  5.  
    10/26(Mon)
    Cloudy, rain at times
    —/—
    ☂ 70%
    Reliability B
  6.  
    10/27(Tue)
    Cloudy, brief rain
    —/—
    ☂ 50%
    Reliability C
  7.  
    10/28(Wed)
    Sunny, cloudy at times
    —/—
    ☂ 20%
    Reliability A
  • ☂ Chance of rain
  • From day 3, the weekly forecast covers a wider prefecture-level area.
  • Reliability of the weekly forecast (A: high, B: fairly high, C: fairly low)
  • "Observed" is the temperature measured so far today by JMA weather stations (AMeDAS), not a forecast.
  • Temperatures from day 3 are not shown because the weekly forecast has no point for this area.
  • Source: Japan Meteorological Agency (weather forecast)
Best Season

Best Time to Visit Hagi, Tsunoshima & Akiyoshidai

For comfortable weather

May and October bring highs of around 22–23°C — ideal for strolling the streets of Hagi and walking on Akiyoshidai.

For cherry blossoms

At Kintaikyo Bridge in Iwakuni, around 1500 cherry trees are usually at their best from late March to early April.

For the sea at Tsunoshima

August has a long 206.3 hours of sunshine, the season when Tsunoshima Ohashi Bridge and the blue of the sea look their best. Highs are around 31°C.

Climate

Hagi, Tsunoshima & Akiyoshidai Temperature & Snow Through the Year

Monthly high / low temperature (°C)

HighLow
05101520253035JanFebMarAprMayJunJulAugSepOctNovDec31.1℃2.4℃Jan High 9.4℃ / Low 2.4℃Feb High 10.4℃ / Low 2.5℃Mar High 13.7℃ / Low 4.6℃Apr High 18.4℃ / Low 8.8℃May High 22.9℃ / Low 13.9℃Jun High 25.7℃ / Low 18.6℃Jul High 30.1℃ / Low 23.0℃Aug High 31.1℃ / Low 23.8℃Sep High 27.2℃ / Low 19.8℃Oct High 22.4℃ / Low 13.7℃Nov High 17.3℃ / Low 8.6℃Dec High 11.8℃ / Low 4.3℃

Monthly max snow depth (cm)

010Jan 2cmJanFeb 2cmFebMarAprMayJunJulAugSepOctNovDec2cm
Month by Month

Month-by-Month Weather & What to Wear

MonthHighLowPrecip.Max snow depthWhat to wear
Jan9.4℃2.4℃94.5mm2cmWarm jacketLight down or winter coat, sweater
Feb10.4℃2.5℃76.3mm2cmWarm jacketLight down or winter coat, sweater
Mar13.7℃4.6℃124.5mm—Warm jacketLight down or winter coat, sweater
Apr18.4℃8.8℃120.4mm—Long sleeves + jacketLong sleeves with a light jacket or hoodie
May22.9℃13.9℃134.7mm—T-shirt + layerT-shirt, plus light long sleeves for mornings and evenings
Jun25.7℃18.6℃206.5mm—T-shirtT-shirt, with a light layer for evenings and air conditioning
Jul30.1℃23.0℃273.5mm—T-shirtT-shirt, with a light layer for evenings and air conditioning
Aug31.1℃23.8℃178mm—T-shirtT-shirt, with a light layer for evenings and air conditioning
Sep27.2℃19.8℃201.4mm—T-shirtT-shirt, with a light layer for evenings and air conditioning
Oct22.4℃13.7℃107.5mm—T-shirt + layerT-shirt, plus light long sleeves for mornings and evenings
Nov17.3℃8.6℃88.8mm—Long sleeves + jacketLong sleeves with a light jacket or hoodie
Dec11.8℃4.3℃86.9mm—Warm jacketLight down or winter coat, sweater

Clothing tips are based on the normal high temperature and snow depth. Bring an extra layer for mornings and evenings.

Where to Stay · Agoda

Places to Stay near Hagi, Tsunoshima & AkiyoshidaiPR

Prices and availability are shown on Agoda.

Seasons

Hagi, Tsunoshima & Akiyoshidai Through the Seasons

🌸

Spring

Mar–May

April highs are around 18°C, mornings around 9°C. Something to layer is a good idea.

☀️

Summer

Jun–Aug

The rainy season runs from June to mid-July, with a heavy 273.5mm of rain in July. After it ends, highs are around 30–31°C.

🍁

Autumn

Sep–Nov

Watch out for rain and typhoons in September. October highs are around 22°C, November around 17°C.

❄️

Winter

Dec–Feb

Highs around 9–12°C, mornings around 2–4°C. Many days are cloudy, and the wind off the Sea of Japan feels cold.

Events

Events & festivals in Hagi, Tsunoshima & Akiyoshidai

April

Kintaikyo Festival

Chugoku & Shikoku ・ Hagi, Tsunoshima & Akiyoshidai

Every year April 29 (Showa Day)

Autumn Leaves

Autumn Leaves in Hagi, Tsunoshima & Akiyoshidai

Gorge🍁 Typical peak

Chomonkyo Gorge

Chugoku & Shikoku ・ Ato, Yamaguchi

🍁 Typical peak: Late Oct – Mid Nov

Attractions

Attractions in Hagi, Tsunoshima & Akiyoshidai

Zoo

Akiyoshidai Safari Land

Chugoku & Shikoku ・ Hagi, Tsunoshima & Akiyoshidai

A safari-style animal park in the Akiyoshidai area where you can see animals without leaving your car. Besides the Safari Zone that you drive through in your own car, there's a feeding bus that tours by dedicated bus, a Walking Zone where you can interact with animals on foot, and an amusement park with free admission.

Aquarium

Shimonoseki Marine Science Museum Kaikyokan

Chugoku & Shikoku ・ Shimonoseki, Yamaguchi

A Shimonoseki City aquarium facing the Kanmon Straits. Under the concept Life in the Sea, the Sea and Life, it's known for a tank recreating the Kanmon Straits currents and its world-leading display of about 100 species of pufferfish. It reopened after renovation in August 2025, adding Hireashi Beach, a new California sea lion exhibit.

Travel Passes

Travel passes you can use in Hagi, Tsunoshima & Akiyoshidai

🚄 JR

Sanyo-San'in Area Pass

Chugoku & Shikoku ・ 7 consecutive days (from 0:00 on the first day to 24:00 on the last day)

From ¥23,000

🚌 Bus

SUNQ PASS

Kyushu ・ Paper passes are valid for 3 or 4 consecutive days. Digital passes: the 3-day pass covers any 3 days within 5 days from the start date, and the 4-day pass any 4 days within 7 days (each day runs from 3:00 to 26:59)

🚄 JR

Japan Rail Pass

Nationwide ・ Three types: 7, 14 or 21 days. The period of use cannot be extended or changed

From ¥50,000

Plan Your Trip

Plan Your Hagi, Tsunoshima & Akiyoshidai TripPR

Other Areas

Weather in Other Areas

Back to the Chugoku & Shikoku Weather Guide (all months & areas) →

Source: Japan Meteorological Agency (climate normals 1991-2020). Compiled by tripuuu.log. Temperature and snow figures are normals from the Hagi station; actual weather varies from year to year.