Key Facts
• Typhoon No. 13 is expected to weaken into a tropical depression by August 26.
• A “low-pressure area” east of the Philippines shows signs of forming into a tropical depression.
• August 2025 has seen only 4 typhoons so far, below the average of 5.7.
• Sea surface temperatures exceed 27°C, creating favorable conditions for typhoon development.
• September typically sees an average of 5 typhoons, marking the peak typhoon season.
• The Pacific high-pressure system is weakening, increasing the likelihood of typhoons approaching Japan.
• Supercomputer simulations suggest tropical depressions may move northward through gaps in the high-pressure system.
• Extreme heat is expected in late August and early September, raising heatstroke risks.
• September is a critical period for typhoon preparedness, with potential for heavy rain and strong winds.
Summary
Typhoon No. 13 is expected to weaken into a tropical depression by August 26, but new tropical depressions may form east of the Philippines. August 2025 has seen fewer typhoons than average, with only 4 recorded so far. However, high sea surface temperatures exceeding 27°C create favorable conditions for typhoon development. The Pacific high-pressure system is weakening, making it easier for typhoons to approach Japan. September, with an average of 5 typhoons, remains the peak season. Supercomputer simulations indicate tropical depressions may move northward through gaps in the high-pressure system. Residents should prepare for potential heavy rain and strong winds while also staying cautious of extreme heat in late August and early September.
