Taipei residents are feeling an unusually early chill this September, but old weather data suggests this is what normal used to look like — a neutral story with an uncomfortable climate message.

• A Taipei resident woke up cold and asked online whether September is usually this chilly, sparking a wide debate.
• Lows dropped to 22°C with daytime highs only reaching the mid-20s after days of rain.
• Someone dug up records from the same date 33 years ago showing September lows of 22–24°C were once standard.
• The takeaway: global warming has pushed summer heat above 35°C and stretched it later, so normal weather now feels early and strange.
• Forecasters expect stronger northeast winds midweek as Typhoon Koto-related weather clears, bringing rain to the north and east and afternoon showers to the south.

Outlook: The cool, wet pattern should hold briefly before heat returns once the rain stops.