Taipei weather in September
September is one of the least pleasant months in Taipei: highs of 28°C (82°F) and about 243 mm (9.6 in) of rain on average. Nights average 24°C (74°F) and cloud cover 67% (NASA POWER, 2001–2025 averages). It is the 3rd wettest month of the year and the 4th warmest. Compared with August, it is cooler and about as wet; October brings highs of 25°C (76°F) and 109 mm (4.3 in) of rain.
Figures are long-term averages for New Taipei City, the largest city in Taipei. See below for other places.
Is September a good time to visit Taipei?
least pleasant month Weather score 46/100.
September is one of the least pleasant months for weather in Taipei. For better conditions, consider Feb–Apr, Jul, Oct–Dec.
Does it rain a lot in Taipei in September?
Yes, it is one of the rainy months: about 243 mm (9.6 in) falls in an average September. It is the 3rd wettest month of the year.
How warm is Taipei in September?
Days average 28°C (82°F) and nights 24°C (74°F).
Taipei weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 17°C (62°F) | 12°C (53°F) | 95 mm | 86% | fair |
| February | 18°C (65°F) | 12°C (54°F) | 88 mm | 86% | best |
| March | 20°C (69°F) | 14°C (57°F) | 126 mm | 86% | best |
| April | 24°C (75°F) | 18°C (64°F) | 122 mm | 83% | best |
| May | 27°C (81°F) | 21°C (70°F) | 227 mm | 82% | least pleasant |
| June | 29°C (84°F) | 24°C (75°F) | 270 mm | 81% | least pleasant |
| July | 30°C (87°F) | 25°C (77°F) | 169 mm | 60% | best |
| August | 30°C (85°F) | 25°C (77°F) | 263 mm | 60% | least pleasant |
| September | 28°C (82°F) | 24°C (74°F) | 243 mm | 67% | least pleasant |
| October | 25°C (76°F) | 20°C (69°F) | 109 mm | 72% | best |
| November | 22°C (72°F) | 18°C (64°F) | 107 mm | 81% | best |
| December | 18°C (65°F) | 14°C (57°F) | 96 mm | 86% | best |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
Weather across Taipei in September
Weather can differ a lot within Taipei: coasts, hills and mountains each have their own climate.
| Place | High | Low | Rain | Weather |
|---|---|---|---|---|
| New Taipei City | 28°C (82°F) | 24°C (74°F) | 243 mm | least pleasant |
| Banqiao | 28°C (82°F) | 24°C (74°F) | 243 mm | least pleasant |
| Xizhi | 28°C (82°F) | 26°C (78°F) | 252 mm | least pleasant |
| Danshui | 28°C (82°F) | 24°C (74°F) | 243 mm | least pleasant |
| Shulin | 28°C (82°F) | 24°C (74°F) | 243 mm | least pleasant |
| Sanxia | 28°C (82°F) | 24°C (74°F) | 243 mm | least pleasant |
| Yingge | 28°C (82°F) | 24°C (74°F) | 243 mm | least pleasant |
| Sanzhi | 28°C (82°F) | 27°C (80°F) | 235 mm | least pleasant |