Cascais weather in April 2026

Expect daytime maximum temperatures of 64°F in Cascais, Portugal in April based on long-term weather averages. There are 8 hours of sunshine per day on average with 12 days with some rainfall and typically 2.8 inches of rainfall in the month.

  • 64°F maximum daytime temperature in April in Cascais64
    64°F max day temperature
  • 8 hours of sunshine per day
  • 12 days with some rainfall in April in Cascais12
    12 days with some rainfall
  • 52°F minimum night-time temperature in April in Cascais52
    52°F min night temperature
  • 13 hours of daylight per day in April in Cascais13
    13 hours of daylight per day
  • No heat & humidity in April in Cascais0
    No heat & humidity
  • 2.8 inches monthly rainfall in April in Cascais2.8
    2.8 inches of monthly rainfall
  • UV (maximum) index 6 (High) in April in Cascais6
    6 (High) UV index
  • 59°F sea temperature in April in Cascais59
    59°F sea temperature

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The April 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)  |  Imperial (°F)

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More about Portugal

How hot is it in Cascais in April?

Daytime temperatures usually reach 64°F in Cascais in April, falling to 52°F at night.

How sunny is it in Cascais in April?

There are normally 8 hours of bright sunshine each day in Cascais in April - that's 58% of daylight hours.

How warm is the sea around Cascais in April?

The average sea temperature around Cascais in April is 59°F.

Does it rain in Cascais in April?

There are usually 12 days with some rain in Cascais in April and the average monthly rainfall is 2.8 inches.

Cascais April sunrise & sunset times

Browse the sunrise and sunset times for Cascais in April 2026. Select a month to view Cascais sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st April 2026 06:23 19:01
Wednesday, 15th April 2026 06:02 19:14
Thursday, 30th April 2026 05:42 19:29

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