WanderWhen

Taipei weather in September

September is a challenging month to visit Taipei — consider January–April & October–November instead. Expect highs around 30°C, lows near 24°C, and about 15.7 days with rain.

4.7 · Poortravel score for September
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Avg high
30°C
Avg low
24°C
Rainfall
232 mm
Rain days
15.7
Sunshine
9.6 h/day
Daylight
12.1 h

What to pack for Taipei in September

  • light, breathable clothing
  • sun protection (hat, SPF 50)
  • a compact umbrella or rain shell — rain is frequent
  • expect humid, sticky conditions

Humidity averages 81%; max daily wind around 17 km/h.

How September compares

January: 8.1/10 JFebruary: 8.3/10 FMarch: 8.2/10 MApril: 8.0/10 AMay: 5.5/10 MJune: 3.5/10 JJuly: 2.1/10 JAugust: 2.7/10 ASeptember: 4.7/10 SOctober: 7.8/10 ONovember: 8.2/10 NDecember: 7.1/10 D

Best months in Taipei: January–April & October–November. See the full best time to visit Taipei guide.

Taipei in September: the details

In September, Taipei sees average daytime highs of 30°C (87°F) and overnight lows of 24°C (75°F). Rainfall totals roughly 232 mm across 15.7 rainy days, and the sun shines about 9.6 hours per day with 12.1 hours of daylight mid-month. Relative humidity averages 81%.

These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Taipei, Taiwan (25.05, 121.53) — see our methodology. Actual conditions vary year to year.

Where should you go next month?

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