San Antonio weather in September 2025

Expect 27°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in San Antonio in September. Check more long-term weather averages for San Antonio in September before you book your next holiday to Ibiza in 2025/2026.

  • 27°C maximum daytime temperature in September in San Antonio27
    27°C max day temperature
  • 8 hours of sunshine per day
  • 6 days with some rainfall in September in San Antonio6
    6 days with some rainfall
  • 19°C minimum night-time temperature in September in San Antonio19
    19°C min night temperature
  • 12 hours of daylight per day in September in San Antonio12
    12 hours of daylight per day
  • Low heat & humidity in September in San AntonioL
    Low heat & humidity
  • 46 mm monthly rainfall in September in San Antonio46
    46 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in San Antonio6
    6 (High) UV index
  • 25°C sea temperature in September in San Antonio25
    25°C sea temperature

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The September weather guide for Ibiza (San Antonio) 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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More about Ibiza

How hot is it in San Antonio in September?

Daytime temperatures usually reach 27°C in San Antonio in September with low heat and humidity, falling to 19°C at night.

How sunny is it in San Antonio in September?

There are normally 8 hours of bright sunshine each day in San Antonio in September - that's 64% of daylight hours.

How warm is the sea around San Antonio in September?

The average sea temperature around San Antonio in September is 25°C.

Does it rain in San Antonio in September?

There are usually 6 days with some rain in San Antonio in September and the average monthly rainfall is 46mm.

San Antonio September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:24 19:25
Monday, 15th September 2025 06:36 19:03
Tuesday, 30th September 2025 06:50 18:39

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