The highest day temperature in April 2025 was 72°F. The lowest night temperature was 54°F. The average values for day and night temperatures during April were 63.9°F и 58.3°F respectivly.

The average sea surface temperature in April 2025 for Cascais was 61.9°F. The maximum and minimum values were 60.4°F and 63.4°F respectively.

Most of the days in April are sunny but you can also expect cloudy and gloomy days.

Precipitation total in April for Cascais is 1.8 in.

The average wind speed in April is 12.3 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Cascais in April is 8.6 hours.