Cao Bang weather in September 2025

Expect 30°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Cao Bang in September. Check more long-term weather averages for Cao Bang in September before you book your next holiday to Vietnam in 2025/2026.

  • 30°C maximum daytime temperature in September in Cao Bang30
    30°C max day temperature
  • 6 hours of sunshine per day
  • 13 days with some rainfall in September in Cao Bang13
    13 days with some rainfall
  • 22°C minimum night-time temperature in September in Cao Bang22
    22°C min night temperature
  • 12 hours of daylight per day in September in Cao Bang12
    12 hours of daylight per day
  • High heat & humidity in September in Cao BangH
    High heat & humidity
  • 150 mm monthly rainfall in September in Cao Bang150
    150 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in September in Cao Bang11
    11 (Extreme) UV index

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The September weather guide for Vietnam (Cao Bang) 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 Cao Bang in September?

Daytime temperatures usually reach 30°C in Cao Bang in September with high heat and humidity, falling to 22°C at night.

How sunny is it in Cao Bang in September?

There are normally 6 hours of bright sunshine each day in Cao Bang in September - that's 46% of daylight hours.

Does it rain in Cao Bang in September?

There are usually 13 days with some rain in Cao Bang in September and the average monthly rainfall is 150mm.

What is the chance of a typhoon in Cao Bang in September?

On average 1.4 days in September in Cao Bang are likely to be affected by the passage of one or more tropical storms.

Cao Bang September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:37 18:12
Monday, 15th September 2025 05:42 17:58
Tuesday, 30th September 2025 05:46 17:43

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