April weather forecast and climate
Lisbon, Portugal

The beautiful hillside city of Lisbon in Portugal, with a high, far view of the Sao Jorge Castle, seen on a sunny day
The beautiful hillside city of Lisbon in Portugal, with a high, far view of the Sao Jorge Castle, seen on a sunny day
Fantastic weather in April wakes up the wonderful flora that can be enjoyed while strolling through many beautiful parks, like Jardim da Estrela, or hiking on any one of the seven Lisbon Hills.
Mean temperature of 15.6°C (60.1°F) makes April a fabulous month to visit Lisbon. The ocean waters are great for surfing with temperatures of 15°C (59°F).

What is the temperature in April in Lisbon?

The average high-temperature, in April, in Lisbon, Portugal, is 19.8°C (67.6°F), while the average low-temperature is 11.9°C (53.4°F).

How many days does it rain in April in Lisbon?

In Lisbon, Portugal, in April, during 11 rainfall days, typically, 68.1mm (2.7") of precipitation is accumulated.

How cold is the water in April in Lisbon?

In April, in Lisbon, Portugal, the average sea temperature is 16.3°C (61.3°F). Swimming in 16.3°C (61.3°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).
Average temperature in April - Lisbon, Portugal
  • Average high temperature in April: 19.8°C

The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (14.8°C).

  • Average low temperature in April: 11.9°C

The month with the highest average low temperature is August (18.6°C).
The coldest month (with the lowest average low temperature) is January (8.3°C).

Average rainfall in April - Lisbon, Portugal
  • Average rainfall in April: 68.1mm

The wettest month (with the highest rainfall) is November (127.6mm).
The driest month (with the lowest rainfall) is July (4.2mm).

Average rainfall days in April - Lisbon, Portugal
  • Average rainfall days in April: 11 days

Months with the highest number of rainy days are January, February and December (14 days).
Months with the lowest number of rainy days are July and August (2 days).

Average sea temperature in April - Lisbon, Portugal
  • Average sea temperature in April: 16.3°C

The best month for swimming (with the highest average sea temperature) is September (19.9°C).
The coldest month (with the lowest average sea temperature) is March (15.1°C).

Average daylight in April / Average sunshine in April - Lisbon, Portugal
  • Average daylight in April: 13.2h

The month with the longest days is June (Average daylight: 14.8h).
The month with shortest days is December (Average daylight: 9.5h).

  • Average sunshine in April: 8h

Months with most sunshine are July and August (Average sunshine: 11h).
Months with least sunshine are January, February, November and December (Average sunshine: 5).

Average UV index in April - Lisbon, Portugal
  • Average UV index in April: 6

Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January and December (UV index 2).

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