Valletta weather in September 2025

Expect 28°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Valletta in September. Check more long-term weather averages for Valletta in September before you book your next holiday to Malta in 2025/2026.

  • 28°C maximum daytime temperature in September in Valletta28
    28°C max day temperature
  • 9 hours of sunshine per day
  • 4 days with some rainfall in September in Valletta4
    4 days with some rainfall
  • 20°C minimum night-time temperature in September in Valletta20
    20°C min night temperature
  • 12 hours of daylight per day in September in Valletta12
    12 hours of daylight per day
  • Moderate heat & humidity in September in VallettaM
    Moderate heat & humidity
  • 36 mm monthly rainfall in September in Valletta36
    36 mm of monthly rainfall
  • UV (maximum) index 7 (High) in September in Valletta7
    7 (High) UV index
  • 26°C sea temperature in September in Valletta26
    26°C sea temperature

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The September weather guide for Malta (Valletta) 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 Malta

How hot is it in Valletta in September?

Daytime temperatures usually reach 28°C in Valletta in September with moderate heat and humidity, falling to 20°C at night.

How sunny is it in Valletta in September?

There are normally 9 hours of bright sunshine each day in Valletta in September - that's 69% of daylight hours.

How warm is the sea around Valletta in September?

The average sea temperature around Valletta in September is 26°C.

Does it rain in Valletta in September?

There are usually 4 days with some rain in Valletta in September and the average monthly rainfall is 36mm.

Valletta September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:34 18:29
Monday, 15th September 2025 05:45 18:09
Tuesday, 30th September 2025 05:56 17:47

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