Kaohsiung weather in September
September in Kaohsiung: sweltering, soaked, with muggy air — a gamble, with 14 rainy days.
Updated September 2026 · climate normals from ERA5 reanalysis
#8 of 12 months in Kaohsiung · #1245 of 1413 destinations to visit in September · comfort 52/100 (tier D)
- Days
- 33°C
- Nights
- 27°C
- Wet days
- 14
- Sun
- 9.8 h
- Humidity
- 82%
- Daylight
- 12 h

Traveller notes on Kaohsiung in September
Notes from nearby Kenting (89 km away)
Kaohsiung doesn't have its own notes for September yet — these are about Kenting, close enough to share the season.
Kenting forum threads describe September as a genuinely good window to visit - noticeably less scorching than peak summer, with students back in school thinning out the crowds, and good surf conditions drawing regulars specifically for that reason. September does fall within Taiwan's June-October typhoon season, with August/July/September the months most likely to see one, but posters were clear that being 'typhoon season' doesn't mean a typhoon will actually hit - it's common to go a stretch without one even in peak months. The practical advice: check forecasts as the trip nears rather than avoiding the month outright, and know that Kenting's beaches don't officially close even when conditions turn rough.
Other months in Kaohsiung
Forum posters describe August in Kaohsiung as basically a daily heatwave, with one local citing temperatures around 30-38C, and posters generally naming July and August as Taiwan's hottest months overall, typically 33-36C with high humidity. Posters consistently flag August through October as typhoon season, a real factor to track for any Kaohsiung trip this time of year. Posters describe rain as occurring periodically rather than daily, though June through August sees the heaviest rainfall totals of the year. Posters are direct that August isn't the ideal weather month, but note millions of visitors still come to Taiwan every summer regardless. Posters generally rate August as hot, humid and typhoon-watchful, but still genuinely travel-friendly for Kaohsiung.
Forum posters describe Kaohsiung in February as warm and dry enough that jackets weren't needed day or night on at least one recent visit, consistent with the broader pattern posters give for southern Taiwan generally - mild winters, typically 15-20C, not the rainy season though a stray shower is always possible. The one scheduling wrinkle worth planning around: Chinese New Year (early-to-mid February) brings sold-out public transport and higher accommodation rates, but posters call it worth the hassle for the festive atmosphere, which they say isn't matched at any other time of year.
Add your own note from Kaohsiung's card on the map.
Kaohsiung climate normals — September
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Kaohsiung in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyGhost Month, school holidays in 3 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Kaohsiung's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherKaohsiung's weather peaks December–February.
Best weatherFair weatherToughest weather
What's on in Kaohsiung in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Hazard
Typhoon season
1 Jul – 15 Oct · usuallyClosuresSouthern Taiwan is hit less often than the east coast but harder by the rain when it is. A typhoon day here means a declared day off work and the whole city indoors. Source ↗
- Holiday
Ghost Month
5 Aug – 15 Sep · usuallyReligious feastThe seventh lunar month, when offerings burn on the pavements and locals put off weddings, house moves and swimming. Nothing shuts, but the beaches at Cijin are noticeably emptier. Source ↗
Nearby, and something's on
Within 300 km of Kaohsiung — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Kaohsiung?
Kaohsiung in September — FAQ
- Is September a good time to visit Kaohsiung?
- September in Kaohsiung: sweltering, soaked, with muggy air — a gamble, with 14 rainy days. It ranks #8 of 12 months for Kaohsiung on SeasonMap's comfort score (52/100).
- What is the weather like in Kaohsiung in September?
- In September, Kaohsiung averages a daily high of 32.7°C and a low of 26.6°C, with about 209.6 mm of rain over roughly 13.9 rainy days.
- What is the air quality in Kaohsiung in September?
- Kaohsiung has a mean US Air Quality Index of about 88 in September.
Within 300 km: Kenting's Raptor migration around 25 Sep – 25 Oct, and Sun Moon Lake's Cross-lake Swimming Carnival around 10 Sep – 5 Oct.