Key Facts
• Typhoon No. 5 (Nalgae) formed on July 13, 2025, at 3:00 AM.
• It will approach the Ogasawara Islands on July 13 and move northward quickly.
• Compact but intensifying, it may bring rain and wind to coastal areas.
• Tropical depression in the East China Sea will pass near Honshu early in the week.
• Heavy rain is expected across western and eastern Japan due to moist air inflow.
• July 14–15: Sudden severe weather and high waves are anticipated along the coast.
• July 15–16: Rain clouds may form from eastern to northern Japan, causing localized downpours.
• Rain will ease later in the week as high-pressure systems strengthen.
• Heatwave relief expected midweek, but humid nights with temperatures above 25°C persist.
• Heatstroke risk remains high; hydration and air conditioning are advised.
Summary
Typhoon No. 5 (Nalgae) and a tropical depression in the East China Sea are expected to bring significant rainfall to Japan in the coming week. The typhoon will approach the Ogasawara Islands on July 13 before moving northward, potentially affecting coastal areas with rain and wind. Meanwhile, the tropical depression will pass near Honshu, intensifying rain across western and eastern Japan. Sudden severe weather is likely on July 14–15, with localized downpours from July 15–16. Rainfall will subside later in the week as high-pressure systems strengthen, potentially signaling the end of the rainy season in some regions. While the rain will provide temporary relief from the heatwave, humid nights with temperatures above 25°C will persist, increasing the risk of heatstroke. Residents are advised to stay updated on weather forecasts and take precautions against heat-related illnesses.
