Lisbon weather in October
Lisbon averages 23°C by day and 16°C at night in October, with the sea at 19°C and 9 days with at least 1 mm of rain. It cools by about 5°C into November.
Day
23°C
Night
16°C
Sea
19°C
Rainy days
9
Flight from London
2½h
What October feels like
October is warm in Lisbon: T-shirt days, a light layer for evenings.
The sea is 19°C: refreshing, and chilly for most people after a few minutes.
Expect some rain: about 9 days with at least 1 mm.
Of the 48 sun destinations we track, Lisbon is the #45 warmest in October, and #22 of 23 within 5½ hours of the UK.
Want it warmer in October?
These are hotter than Lisbon this month for at most an hour and a half more flying:
Lisbon weather by month
October is highlighted. Compare with September and November, or see the full year in Lisbon.
Lisbon in October: quick answers
Is Lisbon hot in October?
October is warm in Lisbon: T-shirt days, a light layer for evenings. Average highs are 23°C and lows 16°C.
Can you swim in Lisbon in October?
The sea is 19°C: refreshing, and chilly for most people after a few minutes.
Does it rain in Lisbon in October?
Expect some rain: about 9 days with at least 1 mm.
What is the warmest month in Lisbon?
August, at an average high of 29°C. The coolest is January at 15°C.
How long is the flight to Lisbon from the UK?
About 2½h direct from London, estimated from the 1,571 km distance. Check your airline for exact times.
Still choosing? See where is hot in October for every destination ranked by temperature, sea and flight time.
How we measured this
Averages of every day in October from 2016 to 2025, from the Open-Meteo historical weather archive (ECMWF ERA5 reanalysis). Sea temperature is the 2023 to 2025 average from the Open-Meteo marine archive. A rainy day has at least 1 mm of rain. Reanalysis describes an area about 25 km across, so sheltered resorts can run a degree or two warmer. Flight time is a distance-based estimate from London Heathrow.
Planning Lisbon in October?
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