Sun, sea & sand

Portimão, Algarve weather in April

Temperature, sea and sunshine in April: long-term averages from 30 years of weather data, not a forecast.

42

Holiday weather in April

Fair

Best time to visit: June – September

Air temperature20°CNight 12°
Sea temperature16.1°Ccold
Sunshine9hrs / dayof 13.1 h daylight
Rainy days8days / month43 mm

What is the weather like in Portimão, Algarve in April?

In April, Portimão, Algarve is mild: daytime highs average 20 °C, and nights cool down to about 12 °C. The sea averages 16.1 °C – swimming is only for the hardy. With around 9 hours of sunshine a day, there is plenty of sun. Rain falls on about 8 days, adding up to 43 mm. All in all, April is a so-so month for a holiday in Portimão, Algarve.

April compared

How the weather changes from March to May. Tap a month to open it.

MarchMarAprilAprMayMay
Score314266
Day19°20°24°
Night11°12°14°
Sea15°16°17°
Sun8 h9 h10 h
Rain days985

More details for April

Daylight
13 h 7 min07:01 – 20:08
UV index
8 · very highclear sky, noon (estimate)
Muggy days
0 daysdew point 18 °C or more
Wind
22 km/haverage daily peak
Cloud cover
49 %on average
Hot days
0 days30 °C or more
Time zone
UTC+1Europe/Lisbon

How the score comes together

  • Temperatureweight 35 %22 %
  • Seaweight 25 %0 %
  • Sunshineweight 20 %100 %
  • Few rainy daysweight 20 %73 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.

What to pack in April

  • Wetsuit for longer swims
  • Sunscreen
  • Sunglasses & sun hat
  • A jumper for the evenings

Portimão, Algarve in April: quick answers

Is Portimão, Algarve hot in April?

No. In April, Portimão, Algarve is mild: daytime highs average 20 °C and nights drop to about 12 °C.

Can you swim in Portimão, Algarve in April?

Only if you don't mind cold water: in April the sea averages just 16.1 °C. Comfortable swimming temperatures are not reached at any time of year.

Does it rain much in Portimão, Algarve in April?

Rain falls on about 8 days, adding up to 43 mm.

Portimão, Algarve month by month

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)