Lisbon weather

Our guide to the weather in Lisbon during January

15

Average high

3

UV Index

88mm

Monthly rainfall

15

Sea temperature

Lisbon is a vibrant city full of culture and charm, with mild temperatures in January making it a perfect winter destination for Irish travellers. We've looked at the most up-to-date weather data for Lisbon, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Lisbon weather in January.

What's the temperature like in Lisbon during January?

January is typically the coolest month in Lisbon. The temperature reaches around 15℃ during the daytime, falling away to 10℃ at night. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.

Does it rain in Lisbon during January?

On average, there will be 5 rainy days during the month, amounting to 88.1mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a small chance that you'll catch a thunderstorm during your trip.

Is it windy in Lisbon during January?

You're unlikely to experience any strong winds. Expect a gentle breeze that increases to moderate at times during January. With moderate air temperatures, any breeze will feel cool.

Is it too cold to swim in the sea in Lisbon during January?

The water around Lisbon is a bracing 15℃ during January and would be considered too cold for swimming. Those who are a bit more hardy or frequently swim in cooler open water might want to take a quick dip. A wetsuit would be advisable if you wish to spend longer than 5 minutes in the water.

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Lisbon Blog posts

From the Ireland's most popular travel bloggers

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Top 10 things to do in Lisbon - with or without kids

7th December 2021 by The Travel Expert

I recently returned from a fabulous weekend in Lisbon. I had visited briefly many years ago, but it wasn’t until I spent three full days exploring this vibrant city that I really appreciated its beauty. The fact that it is on the coast and has warm temperatures for most of the year certainly helps its appeal, but it was the colourful buildings in the old town, the stunning views of Alfama, and its terrific food scene that captivated me the most....

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Lisbon city guide

13th April 2018 by The Daily S'elf

If you’ve already read my Porto post, you might enjoy this Lisbon city guide. I wanted to go to Portugal badly, but couldn’t choose between the two cities, so I spent two nights in each, travelling by train from Porto to Lisbon. Here you’ll find information about Lisbon hotels, what to do, where to eat and drink and other useful information if you’re planning a short city break....

Weather in Lisbon

Our month-by-month guide to the weather and climate in Lisbon

14.7

Lisbon weather in

January
15.4

Lisbon weather in

February
17.1

Lisbon weather in

March
18.8

Lisbon weather in

April
22.2

Lisbon weather in

May
24.2

Lisbon weather in

June
26.5

Lisbon weather in

July
27.5

Lisbon weather in

August
26.0

Lisbon weather in

September
23.0

Lisbon weather in

October
17.9

Lisbon weather in

November
15.7

Lisbon weather in

December