Today's forecast for Japan reveals that rain will be moving eastward from the west, growing the rainy areas. As per prediction, the weather will be mild and warmer by noon, allowing residents to wear short sleeves comfortably. Therefore, it's advised to carry umbrellas in the morning and put on warmer clothes in the afternoon due to the weather fluctuation.

Weather news, especially hourly weather updates, are prevalent in Japan as people greatly rely on these to plan their day ahead, deciding on what to wear and whether or not to carry umbrellas. Given the country's geographical location and diverse climate zones, such fluctuations in weather are quite routine.

This type of weather news is quite similar to that of the US or EU where weather updates are quite integral for daily planning. However, in Japan, due to rapid weather changes throughout the day, these updates are perhaps a bit more critical and frequent.