Lanyu weather in September 2025

Expect 28°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Lanyu in September. Check more long-term weather averages for Lanyu in September before you book your next holiday to Taiwan in 2025/2026.

  • 28°C maximum daytime temperature in September in Lanyu28
    28°C max day temperature
  • 5 hours of sunshine per day
  • 20 days with some rainfall in September in Lanyu20
    20 days with some rainfall
  • 24°C minimum night-time temperature in September in Lanyu24
    24°C min night temperature
  • 12 hours of daylight per day in September in Lanyu12
    12 hours of daylight per day
  • High heat & humidity in September in LanyuH
    High heat & humidity
  • 384 mm monthly rainfall in September in Lanyu384
    384 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in September in Lanyu11
    11 (Extreme) UV index
  • 29°C sea temperature in September in Lanyu29
    29°C sea temperature

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The September weather guide for Taiwan (Lanyu) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Lanyu in September?

Daytime temperatures usually reach 28°C in Lanyu in September with high heat and humidity, falling to 24°C at night.

How sunny is it in Lanyu in September?

There are normally 5 hours of bright sunshine each day in Lanyu in September - that's 39% of daylight hours.

How warm is the sea around Lanyu in September?

The average sea temperature around Lanyu in September is 29°C.

Does it rain in Lanyu in September?

There are usually 20 days with some rain in Lanyu in September and the average monthly rainfall is 384mm.

What is the chance of a typhoon in Lanyu in September?

On average 3.7 days in September in Lanyu are likely to be affected by the passage of one or more tropical storms.

Lanyu September sunrise & sunset times

Browse the sunrise and sunset times for Lanyu in September 2025. Select a month to view Lanyu sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:37 18:11
Monday, 15th September 2025 05:41 17:57
Tuesday, 30th September 2025 05:45 17:43

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