Kanto Region Braces for Rain and March-like Temperatures Friday

Rain is forecast for the Kanto region during commuting hours on Friday, May 22, accompanied by a significant drop in temperature [1, 2].

The sudden shift to early-spring conditions requires residents to adjust their wardrobes to avoid illness and discomfort during the morning rush. A low-pressure system moving northward over the southern sea of Japan is bringing unsettled weather and cooler air to the area [4, 5].

Weather officials said that a wide area of the Kanto region will experience rain during the morning hours ^[2]. Because the temperatures are expected to resemble those typically seen in March, a broadcast narration from ANNnewsCH said viewers should add two ^[3] layers of clothing to their usual attire ^[3].

This cooling trend marks a sharp departure from typical late-May patterns. While some historical data indicates that the region can experience extreme heat—such as a record of 120 ^[6] hottest-day locations on May 27 in previous cycles ^[6]—the current system is pushing the region back toward winter-like conditions.

Livedoor News said that umbrellas will be necessary for those commuting to work or school ^[2]. The rain is expected to affect both urban centers, and coastal areas within the region [1, 2].

Meteorologists attribute the instability to the specific movement of the low-pressure system. The system's path is drawing colder air from the north, creating a "seasonal reversal" effect that disrupts the transition into summer [4, 5].