Get ready for a week of varied weather in Tokyo, starting off warm and cloudy, with a chance of scattered showers on Monday. Temperatures will be pleasant, hovering between 25°C and 30°C. As the week progresses, expect mostly cloudy skies with highs reaching around 33°C to 34°C by midweek. Don’t forget your umbrella, as occasional showers are expected throughout the week.
As we approach the weekend, the weather cools down noticeably, with more frequent showers and temperatures dropping to around 19°C to 26°C on Saturday, and a much cooler 18°C to 23°C on Sunday. Pack light clothing for the start of the week, but by the weekend, you’ll need a light jacket or layers to stay comfortable in the cooler, rainy conditions.
September Weather in Japan
This week’s weather in Japan is influenced by shifting weather systems. A high-pressure system currently over Japan will gradually weaken, making way for a low-pressure system moving eastwards from northeastern China. This low-pressure system will extend a front near eastern Japan on September 19th, and by the 20th, it will shift to the Sea of Okhotsk, pushing the front southward from northern to western Japan.
From September 21st to the 23rd, this front will remain stationary over western and eastern Japan, leading to persistent weather patterns. A tropical disturbance might move north from the Okinawa region to the East China Sea, potentially bringing more moisture and active weather conditions near the front. Be prepared for humid and rainy conditions, so pack light, breathable clothing along with a rain jacket or umbrella for potential downpours.
Typhoon Updates
While no typhoon warnings have been issued for mainland Japan this week, typhoon Pulasan is expected to head over Okinawa by around September 19th. During a typhoon, transit delays and cancelations are common, so stay informed about the latest weather and flight information. For real-time updates on railways and airports, visit LIVE JAPAN’s transport information page.
Sapporo: A Mix of Sun and Clouds
The week in Sapporo starts with clear skies turning cloudy later on Monday, with temperatures around 12°C to 24°C. By midweek, expect partly cloudy skies and temperatures ranging from 15°C to 26°C.
From Thursday onward, cloud cover increases with the chance of occasional showers, and temperatures cool down to between 16°C and 23°C. The weekend brings cooler weather, with lows dropping to 10°C and highs staying between 19°C to 21°C. Pack light layers for the start of the week, but bring a warm jacket and rain gear for cooler, cloudier days and potential showers later on.
Sendai: From Warm to Cool
Sendai will begin the week with cloudy skies and scattered showers, with temperatures ranging from 20°C to 26°C. As the week progresses, Tuesday through Thursday will bring warmer, mostly cloudy weather, with highs around 30°C to 31°C and lows near 21°C to 23°C.
By Friday, expect cooler weather with occasional showers and highs near 27°C. The weekend will continue to cool down, with cloudy skies and temperatures between 17°C and 25°C. Pack light clothing for the warmer start of the week, along with a rain jacket. As the weekend cools, you’ll want an extra layer or two for the chillier days.
Osaka: A Hot Start, A Cooler Finish
Osaka will start the week mostly cloudy and warm, with temperatures around 28°C to 33°C. By midweek, partly cloudy skies will bring even hotter weather, with highs reaching up to 36°C.
From Friday onward, clouds will dominate, bringing occasional showers and cooler temperatures, with highs gradually dropping to around 27°C by Sunday and lows dipping to 22°C. Pack light, breathable clothing for the warm start to the week, and be prepared with rain gear and an extra layer for the cooler, rainy weekend.
Fukuoka: Warm Start, Cooler Weekend
Fukuoka begins the week warm and mostly cloudy, with highs around 36°C and lows near 28°C. Through midweek, partly cloudy skies will continue with temperatures staying hot, reaching around 35°C to 36°C.
From Friday, the weather turns cloudier with occasional showers, and temperatures will cool, dropping to highs around 32°C. The weekend will be cooler and cloudier, with highs near 28°C to 29°C and lows dipping to 23°C to 24°C. Pack light, summer clothing for the hot start, but bring rain gear and a light jacket for the cooler, wetter weekend.
Naha: Cloudy with Showers
The week in Naha will be mostly cloudy with frequent scattered showers. Temperatures will remain consistent, with highs around 31°C to 32°C and lows ranging between 26°C and 29°C. Showers will be on and off throughout the week, especially from midweek onward.
Light, breathable clothing is ideal, and you’ll want to pack a rain jacket or umbrella for the frequent showers.
Whether you’re planning a trip to Japan this week or later this year, be sure to check out the latest weather updates and plan your itinerary accordingly.
