Lisbon weather in January
Lisbon averages 15°C by day and 9°C at night in January, with the sea at 15°C and 8 days with at least 1 mm of rain.
Day
15°C
Night
9°C
Sea
15°C
Rainy days
8
Flight from London
2½h
What January feels like
January is cool in Lisbon: bring a proper jacket.
The sea is 15°C: cold for swimming, so plan on a heated pool.
Expect some rain: about 8 days with at least 1 mm.
Of the 48 sun destinations we track, Lisbon is the #44 warmest in January, and #19 of 23 within 5½ hours of the UK.
Want it warmer in January?
These are hotter than Lisbon this month for at most an hour and a half more flying:
Lisbon weather by month
January is highlighted. Compare with December and February, or see the full year in Lisbon.
Lisbon in January: quick answers
Is Lisbon hot in January?
January is cool in Lisbon: bring a proper jacket. Average highs are 15°C and lows 9°C.
Can you swim in Lisbon in January?
The sea is 15°C: cold for swimming, so plan on a heated pool.
Does it rain in Lisbon in January?
Expect some rain: about 8 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 January for every destination ranked by temperature, sea and flight time.
How we measured this
Averages of every day in January 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 January?
Save the restaurants, beaches and views you find on TikTok and Instagram for Lisbon straight to a map, then let Dream Trip turn them into a day-by-day plan.
