Lisbon
Portugal
Long-term weather forecast
Long-term weather forecast

October 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
In October, Lisbon is amber as autumn starts. Visit Sintra's UNESCO World Heritage Site and capture all the beauty of the autumn leaves as they change color in October.
The weather is nice for tours and exploration. Temperatures stand at a mean of 66°F (18.9°C), and the average chance of rain is 23%. At 62°F (16.7°C), the sea is still suitable for a quick swim.
  • The average high temperature in October: 22.5°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).

  • The average low temperature in October: 15.1°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).

  • The average rainfall in October: 100.8mm

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

  • The average rainfall days in October: 10 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).

  • The average sea temperature in October: 19°C

Best months for swimming (with the highest average sea temperature) are August and September (20°C).
Coldest months (with the lowest average sea temperature) are January, February and March (15°C).

  • The average daylight in October: 11h

Months with the longest days are June and July (Average daylight: 15h).
Months with shortest days are January, November and December (Average daylight: 10h).

  • The average sunshine in October: 7h

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

  • The average UV index in October: 4

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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