The highest day temperature in April 2025 was 76°F. The lowest night temperature was 52°F. The average values for day and night temperatures during April were 65.2°F и 57.3°F respectivly.

The average sea surface temperature in April 2025 for Lisbon was 62.2°F. The maximum and minimum values were 60.8°F and 64.0°F respectively.

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

Precipitation total in April for Lisbon is 2.3 in. It makes april one of the most rainy months of the year.

The average wind speed in April is 9.6 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 Lisbon in April is 8.5 hours.