Best Time to Visit Karatsu: Weather, Seasons & Months Guide

Best Time to Visit Karatsu: Weather, Seasons & Months Guide

Best Time to Visit Karatsu: Weather, Seasons & Months Guide

Karatsu is a beautiful city located in the Saga Prefecture of Japan. With its stunning natural landscapes, rich culture, and historical sites, Karatsu has become a popular destination for tourists from all around the world. If you are planning a trip to Karatsu, it's important to know about its weather patterns and seasons to ensure a pleasant and comfortable visit. In this guide, we will provide you with all the information you need to determine the best time to visit Karatsu.

Seasons in Karatsu

Karatsu experiences four distinct seasons: spring, summer, autumn, and winter. Each season offers a unique experience, so let's take a closer look at what you can expect during each time of the year.

Spring (March - May)

Spring in Karatsu is a beautiful time when cherry blossoms bloom, creating a picturesque scenery throughout the city. The average temperature during this season ranges from 11°C (51.8°F) to 18°C (64.4°F). It is generally a comfortable time to explore Karatsu, though occasional rainfall may occur.

Summer (June - August)

Summer in Karatsu is hot and humid, with temperatures ranging from 22°C (71.6°F) to 30°C (86°F). It is the peak tourist season due to the many festivals and events taking place during this time. If you enjoy attending lively festivals and don't mind the heat, summer can be a great time to experience the vibrant energy of Karatsu.

Autumn (September - November)

Autumn is a popular time to visit Karatsu due to its mild weather and stunning fall foliage. The temperature during this season ranges from 17°C (62.6°F) to 25°C (77°F). The city transforms into a colorful masterpiece as the leaves change into vibrant shades of red, orange, and yellow.

Winter (December - February)

Winter in Karatsu is cold, but it offers a unique charm. The average temperature during this season ranges from 6°C (42.8°F) to 13°C (55.4°F). While snowfall is rare, you can still experience a chilly breeze. Winter is an ideal time to visit if you prefer a quieter and more serene atmosphere.

Monthly Breakdown

Here is a detailed breakdown of the weather conditions you can expect in Karatsu each month:

Month Season Humidity Temperature (°C) Sun (hours) Rainfall (mm)
January Winter 63% 6 - 11 6 111
February Winter 61% 6 - 12 7 81
March Spring 63% 11 - 16 7 139
April Spring 64% 15 - 20 7 118
May Spring 67% 18 - 23 8 159
June Summer 76% 22 - 26 5 219
July Summer 79% 24 - 30 6 248
August Summer 75% 25 - 30 7 174
September Autumn 70% 21 - 28 7 136
October Autumn 68% 16 - 23 7 103
November Autumn 67% 11 - 18 6 113
December Winter 62% 7 - 13 6 130

From January to March, you can expect cool temperatures and occasional rainfall. April and May bring milder weather, perfect for enjoying outdoor activities. June to August are the hottest months, with higher humidity levels and increased rainfall. September and October offer comfortable temperatures with colorful autumn foliage. November to December marks the beginning of winter, with chilly temperatures and moderate rainfall.

No matter what time of the year you visit Karatsu, there are always unique experiences awaiting you. Whether it's witnessing the blooming cherry blossoms in spring or enjoying the lively festivals in summer, Karatsu offers something for every traveler.


Based on the weather patterns and seasons in Karatsu, the best time to visit would be during spring (March to May) and autumn (September to November). These seasons offer comfortable temperatures, pleasant weather, and stunning natural beauty.

Now that you have a thorough understanding of Karatsu's weather and seasons, you can plan your trip accordingly and make the most of your visit to this charming city!