Tokyo is set to bask in an unseasonably warm brightness as temperatures soar to 25°C tomorrow, March 23, 2025, bringing the feeling of early spring to the capital. This warmth is part of a broader pattern across western and eastern Japan, where spring-like conditions will persist.
According to the Japan Meteorological Association, the current warmth stems from a high-pressure system positioned south of Japan that is allowing warm air to flow into the region. In fact, recent reports indicate that central Tokyo registered a temperature of 23.6°C, comparable to average mid-May heights. Notably, this temperature surpasses the 22.0°C observed in Narita City, marking a significant warm spell for the season.
On March 24, however, this early summer atmosphere may be tempered by rain that is expected in various locations, leading to a slight drop in temperatures. Despite the impending rain, the warmth is anticipated to linger, at least until late March, maintaining a sense of spring for residents eager to enjoy outdoor conditions.
As the week unfolds, forecasts suggest a significant shift. By March 27, the warm high-pressure system will make way for a cold front which is projected to pass over the archipelago on March 28, bringing widespread rain and the likelihood of thunderstorms along with heavy downpours. This weather event will dramatically change the landscape, providing a stark contrast to the recent warmth.
The forecast indicates temperatures will plummet, particularly in northern and western Japan, with Kyushu potentially experiencing conditions reflective of a month earlier, illustrating the unpredictable nature of spring weather. Residents in regions like Ota Town in Ibaraki Prefecture have already felt the extreme temperature fluctuations, with a notable variance of over 25°C observed between morning lows of -1.5°C and afternoon highs of 23.6°C—an occurrence not seen in nearly a decade.
"The last time Ota Town experienced a daily temperature range of over 25°C in March was on March 27, 2015," noted local meteorologists, emphasizing the rarity of such extremes in the early part of the year.
As the cold air moves in around March 29, another shocking turn awaits, as temperatures may revert to winter-like chills with maximums struggling to exceed 10°C in Tokyo. The reappearance of colder weather accompanying the cherry blossom season means that locals must prepare for dramatic temperature shifts as they plan their spring outings.
If you have plans for hanami, or cherry blossom viewing, on March 29, it's crucial to dress warmly, as the pleasant spring sun may quickly turn to the chill of late winter.
Moreover, with the warm weather, health experts remind the public of potential risks associated with rising temperatures, even in the early spring. Past tests show that car interiors can heat up dangerously; an experiment conducted in May 2019 revealed that even with mild outdoor temperatures, the insides of parked vehicles can reach hazardous highs—39.9°C in a light wagon and up to 46.5°C in larger SUVs.
As temperatures rise and subsequently fall, safety remains a priority. Parents and pet owners are advised against leaving children or animals in parked cars, regardless of the season. As we venture into this variable spring weather, it's wise to stay updated with the latest weather information to ensure comfort and safety.
In summary, Tokyo's residents are poised to experience a taste of warm spring weather followed by abrupt changes that remind us of the fickleness of the season. As one enjoys the warmth, a swift return to chilly conditions is also on the horizon, urging everyone to prepare accordingly.
While the blossoms are expected to open around March 24, with full bloom projected for March 29, those hoping to catch a glimpse of these beautiful sights should remain flexible in their plans, considering the noted fluctuations in temperature.
Indeed, spring is here, but with it comes the reminder that this alluring season can frequently shift between warm and chilly, sometimes all in a matter of days.
