Cascais weather in July 2025

Expect 26°C daytime maximum temperatures in the shade with on average 11 hours of sunshine per day in Cascais in July. Check more long-term weather averages for Cascais in July before you book your next holiday to Portugal in 2025/2026.

  • 26°C maximum daytime temperature in July in Cascais26
    26°C max day temperature
  • 11 hours of sunshine per day
  • 2 days with some rainfall in July in Cascais2
    2 days with some rainfall
  • 17°C minimum night-time temperature in July in Cascais17
    17°C min night temperature
  • 15 hours of daylight per day in July in Cascais15
    15 hours of daylight per day
  • No heat & humidity in July in Cascais0
    No heat & humidity
  • 7 mm monthly rainfall in July in Cascais7
    7 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in July in Cascais9
    9 (Very High) UV index
  • 18°C sea temperature in July in Cascais18
    18°C sea temperature

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The July weather guide for Portugal (Cascais) 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 Portugal

How hot is it in Cascais in July?

Daytime temperatures usually reach 26°C in Cascais in July with no heat and humidity, falling to 17°C at night.

How sunny is it in Cascais in July?

There are normally 11 hours of bright sunshine each day in Cascais in July - that's 77% of daylight hours.

How warm is the sea around Cascais in July?

The average sea temperature around Cascais in July is 18°C.

Does it ever rain in Cascais in July?

There are usually 2 days with some rain in Cascais in July and the average monthly rainfall is 7mm.

Cascais July sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st July 2025 05:17 20:06
Wednesday, 16th July 2025 05:26 20:01
Thursday, 31st July 2025 05:38 19:49

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