Verdict: Good month
Taipei Weather in September
September runs warm in Taipei, with daily highs around 31°C (88°F) and nights near 24°C (75°F). It's also the wet side of the calendar: rain falls on about 15 days, so build flexibility into plans. Overall, September is a solid month to visit Taipei.
Average high
31°C / 88°F
Average low
24°C / 75°F
Rain days
~15
Precipitation
225 mm
What to pack for Taipei in September
- Light, breathable clothing — linen and technical fabrics earn their keep
- High-SPF sunscreen, sunglasses, and a refillable water bottle
- Rain gear is non-negotiable — expect rain on roughly 15 days
- Comfortable walking shoes — every guide on this site assumes you'll use them
September against the rest of the year
Warmest in Taipei: Jul (34°C / 93°F) · Coolest: Jan (19°C / 66°F) · Wettest: Jun (~20 rain days)
19°
13°
Jan
21°
14°
Feb
23°
16°
Mar
26°
19°
Apr
29°
22°
May
32°
25°
Jun
34°
26°
Jul
33°
26°
Aug
31°
24°
Sep
27°
22°
Oct
25°
20°
Nov
20°
15°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)