Seminyak weather in September 2025

Expect 86°F daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Seminyak in September. Check more long-term weather averages for Seminyak in September before you book your next holiday to Bali in 2025/2026.

  • 86°F maximum daytime temperature in September in Seminyak86
    86°F max day temperature
  • 10 hours of sunshine per day
  • 1 day with some rainfall in September in Seminyak1
    1 day with some rainfall
  • 73°F minimum night-time temperature in September in Seminyak73
    73°F min night temperature
  • 12 hours of daylight per day in September in Seminyak12
    12 hours of daylight per day
  • High heat & humidity in September in SeminyakH
    High heat & humidity
  • 4.3 inches monthly rainfall in September in Seminyak4.3
    4.3 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Seminyak11
    11+ (Extreme) UV index
  • 79°F sea temperature in September in Seminyak79
    79°F sea temperature

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The September weather guide for Bali (Seminyak) 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)  |  Imperial (°F)

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More about Bali

How hot is it in Seminyak in September?

Daytime temperatures usually reach 86°F in Seminyak in September with high heat and humidity, falling to 73°F at night.

How sunny is it in Seminyak in September?

There are normally 10 hours of bright sunshine each day in Seminyak in September - that's 85% of daylight hours.

How warm is the sea around Seminyak in September?

The average sea temperature around Seminyak in September is 79°F.

Does it ever rain in Seminyak in September?

There is usually 1 day with some rain in Seminyak in September and the average monthly rainfall is 4.3 inches.

Seminyak September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:21 18:18
Monday, 15th September 2025 06:13 18:16
Tuesday, 30th September 2025 06:04 18:14

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