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Karatsu

Karatsu 1
Travel guide
1
Travel guide

Top 10 things to do in Karatsu

Ongoing promotions in Karatsu

Best time to visit Karatsu

Data source：Meteostat
Last updated：2025-09

Weather in Karatsu throughout the year

  • Spring (March–May): Average 54–68°F, mild climate, but with relatively high rainfall, especially frequent rainfall from April to May. Common activities: Flower viewing (e.g., plum blossoms, cherry blossoms, depending on actual blooming time), enjoying nature. Recommended clothing: Light jacket, long-sleeved shirt, rain gear.
  • Summer (June–August): Average 75–84°F, hot and humid, abundant rainfall, with July being the peak of the rainy season. Common activities: Beach activities (swimming, surfing, be aware of typhoons and other weather conditions), escaping the heat in the mountains. Recommended clothing: Light and breathable clothing, sun hat, sunscreen.
  • Autumn (September–November): Average 59–80°F, comfortable and pleasant climate, reduced rainfall. Common activities: Viewing autumn leaves (depending on actual leaf-changing time), outdoor excursions. Recommended clothing: Light jacket, long-sleeved shirt, the temperature difference between morning and evening is relatively large, it is recommended to bring warm clothing.
  • Winter (December–February): Average 43–46°F, cold climate, less rainfall. Common activities: Hot springs, indoor activities. Recommended clothing: Warm jacket, scarf, gloves, hat.

Weather in Karatsu

Annual average temperature: approx. 63.9°F / Annual rainfall: approx. 2032 mm / Summer humidity: 70%–80% / Rainiest month: July

Karatsu weather by month

Month
Temperature (°F)
Rainfall (mm)
January
43.7°F
66.4
February
46.4°F
85.3
March
54.3°F
172.8
April
62.6°F
196.2
May
68.4°F
211.4
June
75.4°F
278.9
July
83.7°F
377.1
August
84.4°F
335.1
September
80.6°F
121.8
October
68°F
67.2
November
59.2°F
89.7
December
46°F
30.8

7-day weather forecast for Karatsu

11/4
Wednesday
Overcast
67.1°F/59.9°F
11/5
Thursday
Overcast
69.9°F/62°F
11/6
Friday
Partly Cloudy
64.9°F/57.3°F
11/7
Saturday
Sunny
56.6°F/53.1°F
11/8
Sunday
Overcast
60.8°F/51.4°F
11/9
Monday
Partly Cloudy
62.1°F/56.9°F
11/10
Tuesday
Patchy rain nearby
61°F/56.7°F

Karatsu travel FAQs and useful info

What does the name Karatsu signify in Japanese?

The name Karatsu originates from the kanji characters 'kara' meaning Korea and 'tsu' meaning port. This reflects the city's historical role as a trading hub, complemented by its rich heritage, abundant culture, and natural beauty.

What are the main attractions Karatsu is renowned for?

Karatsu is celebrated for its captivating blend of historical sites and natural wonders. Visitors flock to see its impressive castle, explore fascinating caves, relax on beautiful beaches, and experience the vibrant atmosphere of its local fish market.

Could you describe Karatsu ware?

Karatsu ware, also known as 'tsuchi-mono', is a distinctive style of Japanese ceramics. It is crafted from rough, coarse clay, giving it a simple yet robust aesthetic that has captivated enthusiasts across generations.

What are some must-do activities in Karatsu?

Visitors to Karatsu should explore the historic Karatsu Castle, take in panoramic views from Kagamiyama Observatory, visit the Former Takatori House, marvel at the dramatic Nanatsugama Caves, and stroll through the scenic Nijino Matsubara pine grove.

What is the significance of Nijino Matsubara in Karatsu?

Nijino Matsubara is a stunning natural attraction in Karatsu, featuring a long, picturesque avenue of pine trees lining the coast. It's a perfect spot for a leisurely walk and enjoying the seaside scenery.