Taipei, Taiwan — November 21, 2025
The Central Weather Administration (CWA) reports that the northeast monsoon will continue to influence Taiwan today, bringing cooler temperatures during the early morning and evening hours. Islandwide lows are expected to fall between 17°C and 19°C, with residents advised to dress warmly, especially during outdoor activities.
According to the CWA, moisture combined with lower temperatures may lead to icing, rime formation, or isolated snowfall on mountain ranges above 3,500 meters in central Taiwan. Despite the chilly start, the cold air mass is forecast to weaken throughout the day, allowing temperatures to rise and creating mild and comfortable weather conditions by the afternoon.
Warming Trend Expected Today
Daytime temperatures are projected to reach:
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22°C to 23°C in northern Taiwan and Yilan
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24°C to 25°C in Hualien and Taitung
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26°C to 27°C in central and southern regions
Outlying islands will experience varying conditions:
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Penghu: Mostly cloudy, 20°C–22°C
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Kinmen: Cloudy, 15°C–20°C
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Matsu: Partly cloudy, 14°C–17°C
Rainfall Outlook
The CWA notes that cloud cover will remain widespread across the country.
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Keelung North Coast, Yilan, Hualien, and mountain areas of Greater Taipei may see brief showers.
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Scattered rain is also possible in Taoyuan northward, Taitung, and the Hengchun Peninsula.
Other regions will remain mostly cloudy, though moisture in higher elevations could trigger localized showers.
Another Cold Surge Next Week
A new wave of cold air is expected to arrive on Monday, November 24, bringing noticeably cooler conditions through Thursday, November 27. The lowest temperatures during this period may dip to 16°C, particularly in northern Taiwan and Yilan.
Beginning Monday, the strengthening northeast monsoon will bring an uptick in rainfall over:
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Areas north of Taoyuan
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The eastern half of Taiwan
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The Hengchun Peninsula
Rain will be more frequent along the Keelung North Coast, the northeast, and the mountainous regions of Greater Taipei. Other areas can expect partly cloudy to sunny weather, though brief showers may develop in northern regions by nighttime.
Extended Forecast (Nov. 25–27)
From Tuesday to Thursday, the northeast monsoon will continue to shape weather patterns:
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Northern Taiwan and Yilan will remain cool, with chilly mornings and evenings across the rest of the island.
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Expect cloudy to partly sunny skies in most areas on Tuesday, with brief showers along the northern coast of Keelung and the island’s eastern half.
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On Wednesday and Thursday, areas north of Taoyuan, the east coast, and the Hengchun Peninsula will experience scattered showers, while other regions remain mostly cloudy.
Temperature Forecast (Nov. 25–27)
Low temperatures:
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16°C–18°C in central/northern Taiwan and Yilan
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18°C–20°C in southern Taiwan, Hualien, and Taitung
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19°C in Penghu
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15°C–16°C in Kinmen and Matsu
High temperatures:
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22°C–24°C in northern Taiwan, Yilan, and Hualien
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26°C–29°C in central and southern Taiwan and Taitung
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23°C in Penghu and Kinmen
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19°C in Matsu