Azuchi Castle
Castle 16th-century castle ruins near Lake Biwa
On the shores of Lake Biwa, the Azuchi Castle site commemorates Oda Nobunaga’s 16th‑century stronghold; visitors see reconstructed exhibits, archeological remains and learn Japan’s Sengoku-era history.
Azuchi Castle was a late 16th century Japanese castle built by the warlord Oda Nobunaga on the shores of Lake Biwa in what is now Shiga Prefecture. Constructed as both a military fortress and a stately residence, it was known for its tall central keep and ornate design.
The castle was destroyed in 1582 following political turmoil in the region, and only stone bases and archaeological remains survive on the original hilltop site. Excavations and on-site displays, plus a nearby museum, present artifacts and reconstructions that interpret the castle’s original layout and appearance.
The ruins lie near the modern town of Azuchi on the southern shore of Lake Biwa, and the location is accessible from regional transport links; the site is valued for its historical importance in Japan’s Sengoku period.
- Founder and style: Originally built as the fortress and lavish residence of the warlord Oda Nobunaga in the late 16th century and noted for its tall central donjon and innovative architecture for the period.
- Current remains: Destroyed shortly after 1582 and today the site is largely archaeological with foundations and exposed stonework; a museum nearby displays finds and interpretive material.
How to Get to Azuchi Castle #
Azuchi is in Ōmihachiman area of Shiga Prefecture near Lake Biwa. From JR Omi-Hachiman Station (on the JR Biwako Line) take a local bus or taxi to the Azuchi castle site; it’s a roughly 15-20 minute drive. Regional trains from Kyoto and Osaka connect to the Biwako Line.
Tips for Visiting Azuchi Castle #
- Visit during cherry season (late March-early April) to see the area around Lake Biwa in bloom and to combine the site with other Azuchi attractions
- The reconstructed Azuchi Castle site has interpretive markers-pick up the local pamphlet for context on architecture and Oda Nobunaga's innovations
- Combine a visit with the nearby Oda Nobunaga Historical Museum for primary documents on Azuchi's brief, flamboyant life
Best Time to Visit Azuchi Castle #
Best in spring for blossoms and autumn for foliage; avoid mid-summer heat and humidity.
Weather & Climate near Azuchi Castle #
Azuchi Castle's climate is classified as Humid Subtropical - Humid Subtropical climate with hot summers (peaking in August) and cold winters (coldest in January). Temperatures range from 0°C to 31°C. Abundant rainfall (1646 mm/year), wettest in June.
January
January is the coolest month with highs of 8°C and lows of 0°C. Regular rainfall (88 mm) and mostly overcast skies.
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February
February is cold with highs of 8°C and lows of 0°C. Regular rainfall (92 mm) and mostly overcast skies.
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March
March is cold with highs of 11°C and lows of 2°C. Significant rainfall (120 mm) and partly cloudy skies.
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April
April is cool with highs of 18°C and lows of 8°C. Significant rainfall (147 mm) and partly cloudy skies.
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May
May is cool with highs of 22°C and lows of 13°C. Significant rainfall (149 mm) and partly cloudy skies.
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June
June is mild with highs of 25°C and lows of 18°C. The wettest month with heavy rain (228 mm) and mostly overcast skies.
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July
July is warm with highs of 29°C and lows of 22°C. Heavy rain (214 mm) and mostly overcast skies.
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August
August is the warmest month with muggy conditions (dew point 22°C). Significant rainfall (128 mm) and partly cloudy skies.
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September
September is mild with highs of 27°C and lows of 19°C. Significant rainfall (198 mm) and mostly overcast skies.
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October
October is cool with highs of 21°C and lows of 12°C. Significant rainfall (121 mm) and partly cloudy skies.
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November
November is cool with highs of 16°C and lows of 7°C. Regular rainfall (86 mm) and partly cloudy skies.
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December
December is cold with highs of 10°C and lows of 2°C. Moderate rainfall (75 mm) and mostly overcast skies.
