Chugoku Weather Forecast: Heavy Rain Risk and Typhoon 7 Impact
The Chugoku region expects a week of intermittent rain and potential heavy rainfall in the Setouchi area, according to Naomi Takada of the Japan Weather Association. This weather pattern is driven by a stationary rain front near Honshu and moisture from very strong Typhoon 7, which may approach Kyushu by June 27.
Why is the Chugoku region expecting heavy rain?
A stationary rain front currently extends across Honshu. According to the Japan Weather Association, warm and moist air surrounding Typhoon 7 could flow into this front and activate it. This interaction may lead to heavy rainfall, specifically on the Setouchi side.

What is the weather forecast for this week?
Rainy days will dominate the forecast for the Chugoku region. However, Naomi Takada reports that some sunny intervals are likely on June 23 for the Japan Sea side and again on the afternoon of June 26 as the rain front moves away.
Other days are expected to remain cloudy or rainy. The forecast for June 23 also includes clouds over the Setouchi area and possible rain in the western portions of the region.
How will humidity and temperature affect health?
High humidity will persist, creating “sticky” and uncomfortable conditions across the region. Takada warns that heatstroke is a risk even on days when temperatures do not rise significantly.
On days with sunny intervals, temperatures may reach around 30°C. The Japan Weather Association advises monitoring indoor humidity and taking frequent breaks and hydration to manage the heat.
Frequently Asked Questions
When is Typhoon 7 expected to approach Japan?
According to the Japan Weather Association, the typhoon may approach Okinawa between June 25 and June 26, and approach Kyushu on June 27.
Which specific areas are at risk for heavy rain?
Naomi Takada identifies the Setouchi side as the area where heavy rainfall is possible due to the activation of the rain front.
Will there be any sunny weather this week?
Yes. Sunny spells are expected on the Japan Sea side on June 23 and in many areas during the afternoon of June 26.
How are you preparing for the upcoming humid weather in your region?