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Data Source: Safety, crime, and quality metrics are sourced from Numbeo, a crowd-sourced global database of reported data.
All scores are relative comparisons on a 0-100 scale, where 50 = global average. Higher scores mean better than average, lower scores mean worse than average.
Karatsu offers a grounded Japanese lifestyle with quiet coastal charm, where daily life unfolds at a human pace and neighbors know your name. It’s a place to embrace simplicity—affordable housing, low crime, and accessible healthcare make settling in easy, while reliable public transport connects you to essentials without hassle. That said, expats should expect limited English services and fewer international amenities, which can be a welcome quiet for some, a slow adjustment for others. If you value integration over convenience, Karatsu quietly delivers.
Population
117,663
Area
103 km²
Density
1,146 per km²
Founded
-
Language
Japanese
Distance to Coast
1 km
Districts & Neighborhoods in Karatsu
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Climate & Weather in Karatsu
Karatsu has a **humid subtropical (Cfa)** climate with warm, humid summers and cool winters, and light to no snowfall. Long-term climate references show an average annual temperature around 15.6°C, annual rainfall around 1,760 mm, and peak temperatures in August near 26–31°C.
Summer Average
27°C
Winter Average
6°C
Climate Type
Humid Subtropical
Rainy Days
133
Sunny Days
215
Humidity
68%
Spring
March - May
13-21°C
Spring is generally mild and increasingly warm, with comfortable conditions in April and May. Rainfall is moderate and humidity begins to rise as summer approaches.
Moderate rainfall
Summer
June - August
24-31°C
Summer is hot, humid, and frequently rainy, with the wettest period often occurring in June and July. Clear-sky days still occur, but the season is dominated by warmth and moisture.
Very High rainfall
Autumn
September - November
15-24°C
Autumn is pleasant and gradually cooler, with early autumn still warm and occasionally wet from typhoon influence. Conditions become more stable and comfortable by October and November.
Moderate rainfall
Winter
December - February
4-10°C
Winter is cool and relatively dry compared with summer, with average January temperatures near the low single digits to around 5.5°C. Snow is generally light or absent, and humidity remains moderate to high.
Low rainfall
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Air Quality
Karatsu
Advantages
Karatsu
Abundant parks and nature
Historic castle and pottery
Quiet, peaceful living
Affordable cost of living
Strong community spirit
Scenic coastal location
Disadvantages
Karatsu
Limited job opportunities
Aging population decline
Weak public transportation
Few entertainment options
Limited higher education
Safety & Security in Karatsu
Overall Safety Score
Includes resilience and environmental factors
Moderate
59
/100
Japan Avg
66
Asia Avg
59
Worldwide Avg
59
Crime & Safety Metrics
Thermometer compares Karatsu to Japan averages using different marker styles.Compare:
Karatsu
Japan Average
No city-specific data available — showing Japan country averages instead.
