Oeiras weather in January (Lisbon Region, Portugal)

Planning a trip to Oeiras in January? This guide provides all the details you need.

In January, Oeiras typically experiences moderate temperatures and moderate rainfall. Throughout the daytime, temperatures often hover around 15°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 11°C. Typically, this month presents some of the milder temperatures of the year, yet it remains pleasantly warm.

Oeiras in January usually receives moderate rainfall, averaging around 77 mm for the month. Based on our climate data of the past 30 years, about 14 days of rain are anticipated.

The area experiences a moderate amount of sunshine, with approximately 163 hours of sunlight expected. This makes it neither too gloomy nor overly bright.

If you're looking for dry conditions and comfortable temperatures, January may not be the ideal month to visit Oeiras. May, June, July, August, September and October typically offer the best circumstances. While January, February, March and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Oeiras climate page with graphs.

 

Oeiras, monthly averages in January

Min Temperature 11°C  

Max Temperature 15°C  

Chance of Rain 48%  

Precipitation 77 mm  

Rainy days 14 days  

Humidity 82% *  

Sunshine 163 hours *  

Percentage Sunshine 53% *  

* Data from: Cascais, Portugal (9 KM, 5 Miles).

Where to go in Portugal in January

Find out more about the weather in Portugal in January and which places have the best weather conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Oeiras in January?

Plan on layering your clothes. Some days or part of the day it will be nice and warm and some moments it can be a bit chilly. Bring a rain jacket in case it rains during your stay.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in January.

Swimming

5/10

Cycling

6/10

Walking

6/10

Camping

8/10

Outdoor sports

9/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Oeiras.

Our site offers climate and forecast data for every country in the world. Are you going to Portugal? On this website you can find historical weather averages for many cities in Portugal. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.