Weather in Taiwan in september
Country-wide climate normals across 15 cities in Taiwan.
How Hot Is Taiwan in september?
Taiwan bakes evenly in September — highs around 30°C are typical from Keelung all the way to Chang-hua, with very little regional variation. Lows sit around 25°C even overnight, and the country's small geographic footprint means there are no significant climate pockets. Expect uniform heat day and night.
Sunshine in Taiwan in september
Persistent cloud and grey skies define Taiwan's September: about 2.2h of sun a day in Taipei. Daylight is in short supply too, running from 5:40 am to 5:55 pm, and most regions of the country see similar overcast conditions. Bright stretches are uncommon and brief.
Does It Rain In Taiwan In september?
Heavy seasonal rains saturate Taiwan in September — Taipei averages 242mm of rain across 17 days, with downpours an almost daily feature. The pattern is consistent across most regions, particularly along monsoon-affected coasts. Expect torrential afternoon storms followed by humid heat.
Is Taiwan Humid In september?
Taiwan feels humid through September: 71% in Taipei, similar nationwide. Warm days feel several degrees hotter than the thermometer suggests, and morning mist or post-rain steam is common. Drier upland or interior regions may feel a bit less oppressive.
Wind In Taiwan In september
Light breezes are typical across Taiwan in September: 19 kph in Taipei, with similar gentle wind conditions in most regions. The air moves enough to keep things fresh on warm days but not enough to be disruptive. Coastal cities may see slightly more.
Cloud Cover In Taiwan In september
Cloudy skies dominate Taiwan in September — 70% cover in Taipei, with similar overcast conditions in most regions. Direct sun is patchy and broken; expect grey stretches between brief bright moments. Coastal areas may be heavier than inland.