The week in Tokyo will be warm and mostly cloudy, with highs hovering around 32–33°C (89–91°F) and lows near 24–26°C (75–79°F). Rain is expected to start on Monday evening, while the rest of the week brings partly cloudy to mostly cloudy skies. There may be brief moments of sunshine, especially midweek.

Light, breathable clothing like T-shirts and shorts will work well, but bring an umbrella for possible rain early in the week.

This week, Japan will see shifting weather patterns as a low-pressure system moves into the Sea of Okhotsk, affecting northern Japan, while high-pressure areas settle far east of Japan and over northeast China. The west of Japan and Okinawa will experience humid air from the south. As the week progresses, the high-pressure system over northeast China will slowly move toward Japan, pushing a front southward over northern and eastern Japan by midweek. By the 15th, high pressure will shift east, and another low-pressure system will approach from the Sea of Japan.

No typhoon warnings have been issued for mainland Japan this week. However, since early September can see the occurrence of typhoons, check the weather forecast for during your trip and plan accordingly.

During a typhoon, transit delays and cancelations can be expected. Be sure to stay updated on the latest weather and flight information. For real-time updates on railways and airports, visit LIVE JAPAN's transport information page.

Sapporo will have mild temperatures this week, with highs generally around 24–28°C (75–82°F) and lows ranging from 15–19°C (59–66°F). The week starts with clear skies, followed by mostly cloudy conditions and scattered showers midweek. As the week progresses, expect partly cloudy skies, cooling slightly by the weekend with more overcast conditions.

Sendai will experience warm and mostly cloudy weather this week, with highs ranging from 28–33°C (82–91°F) and lows around 22–24°C (72–75°F). The beginning of the week starts off cloudy, clearing up briefly on Tuesday. Expect partly cloudy skies midweek, with temperatures peaking on Wednesday. Clouds return toward the weekend, with slightly cooler but still warm conditions.

Osaka will have a hot and mostly sunny week, with highs consistently around 34–36°C (93–97°F) and lows near 26–27°C (79–81°F). Expect clear skies at the start of the week, with a mix of partly cloudy and mostly cloudy conditions later. Temperatures remain steady, cooling slightly over the weekend, but still staying quite warm.

Fukuoka will be hot and mostly clear at the beginning of the week, with highs around 33–35°C (91–95°F) and lows near 26–28°C (79–82°F). As the week progresses, expect more cloud cover, though temperatures remain consistently warm, with partly to mostly cloudy skies through the weekend.

Naha will have a cloudy and rainy week, with scattered showers most days. Highs will range around 31–33°C (88–91°F), while lows stay warm, around 26–28°C (79–82°F). Showers are more frequent early in the week, and cloud cover will continue throughout the weekend.

Forecast text was AI-generated, then human-edited. Source for forecast and images: Japan Meteorological Agency website, www.jma.go.jp

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