If you plan to visit Porto in January, the weather is typically alright, with an average high temperature of +55°F during the day and approximately 11 sunny days. Expect some rainy, though, as there are typically 14 rainy days in the month and around 128 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flightsin one click on Avionero.
Good to know:
January is usually the coldest month of the year in Porto;
Average weather
☀️
+55°F
Avg. max. temperature
+30°F
Min.
+72°F
Max.
128 mm
Total precipitation
78%
Avg. humidity
3 m/s
Avg. wind
11 ☀️
Sunny Days
6 ⛅️
Cloudy
14 🌦
Rainy
Our opinion: Porto has OK weather in January.
Average temperature in Porto in January
Here are the expected maximum, average and minimum temperatures in Porto for January based on the historical data.
Last Year
Historical Data
Going from a maximum of +63°F during the day to a minimum of +34°F during the night, the temperature in January averages around +55°F.
The average maximum temperature goes down 31% by the end of the month, compared with the beginning of the month, from +63°F to +54°F.
Is Porto warm or cold in January?
Porto is typically mild in January.
Maximum temperatures go down compared to the previous month from +57°F to +55°F. The minimum temperature also goes down from +46°F to +45°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
January is the coldest month in Porto, here is the comparison with other months:
Water temperature in Porto in January
Water in Porto in January is Cold. It varies from +56°F to +59°F, with an average of +58°F.Note that the air temperature is lower than the water temperature, averaging around +55°F.
The water temperature in January is one of the coldest of the entire year:
The warmest water temperatures in Porto are reached in September, when the average sea temperature rises to +65°F. The coldest water temperatures are in February, with an average of +57°F.
Can you swim in Porto in January?
We would not recommend swimming in Porto in January, the water is very cold (+58°F on average). Consider swimming only if you are an experienced cold-water swimmer with proper gear.
🦭
Cold
Below +61°F
🏄♂️
Fresh
61°F - 70°F
🏊
Comfortable
70°F - 77°F
👙
Warm
77°F - 82°F
🔥
Very warm
+82°C and up
You will need a full-body wetsuit, cap, gloves, a warm change of clothes, and a hot drink ready for after your swim.
Climate in Porto in January
Porto weather looks like this, on average, in January and the surrounding months.
December
January
February
Avg. temperature
+57°F
+55°F
+57°F
Min. temperature
+32°F
+30°F
+32°F
Max. temperature
+70°F
+72°F
+73°F
Rainfall
150 mm
128 mm
102 mm
Wind
3 m/s
3 m/s
3 m/s
Avg. water temperature
+60°F
+58°F
+57°F
Humidity
79%
78%
76%
Air pressure
1020 HPa
1021 HPa
1019 HPa
Sunny days
10
11
10
Cloudy days
5
6
5
Rainy days
15
14
12
Snowy days
0
0
0
January weather is still as ok as in December.It’s getting colder in January. From +57°F in the day, the average maximum temperature lowers to +55°F.As January arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 150 mm to 128 mm.It feels drier, as humidity decreases from 79% to 78%.The average wind speed doesn’t change much during January, staying around 3 m/s.The good news is there are likely to be more sunny days in January, from 10 to 11.
February brings much the same weather, it remains ok.
Wind speed in Porto in January based on historical data.
Last Year
Historical Data
The average wind speed is 4 m/s getting up to 8 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Porto is gradually decreasing during January, going from 6 m/s to 3 m/s over the course of the month.
Rain
Amount of rainfall in mm during January in Porto based on historical data.
Last Year
Historical Data
Typically, there is a 48% chance of rain on an average day in January, with total rainfall of approximately 292 mm. The maximum amount of rainfall per day is around 64 mm, which is considered heavy rain.January is a pretty wet month with over 15 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how January is compared with other months in the amount of precipitation, total mm:
Porto wettest month is November, where a typical day has a 50% chance of precipitation and 151 mm of rainfall per day. July, on the other hand, is the driest month with a mere 19% chance of precipitation and 14 mm of rainfall per day.
How was the weather last January in Porto?
This is the weather in Porto in January 2023:
1 January
🌧️
+62°F
2 January
☀️
+57°F
3 January
☀️
+56°F
4 January
☀️
+59°F
5 January
☀️
+60°F
6 January
☁️
+56°F
7 January
🌧️
+58°F
8 January
🌧️
+59°F
9 January
☀️
+58°F
10 January
☁️
+58°F
11 January
☀️
+59°F
12 January
☁️
+53°F
13 January
☁️
+59°F
14 January
☁️
+56°F
15 January
☀️
+55°F
16 January
🌧️
+56°F
17 January
🌧️
+55°F
18 January
🌧️
+49°F
19 January
🌧️
+54°F
20 January
🌧️
+59°F
21 January
☀️
+60°F
22 January
☀️
+55°F
23 January
☀️
+54°F
24 January
☀️
+53°F
25 January
☀️
+53°F
26 January
☀️
+53°F
27 January
☀️
+55°F
28 January
☀️
+54°F
29 January
☀️
+54°F
30 January
☀️
+54°F
31 January
☀️
+54°F
In January 2023 Porto had 18 sunny days, 5 cloudy days, and 8 rainy days. The average maximum temperature was +55°F, with an absolute maximum of +63°F and a minimum of +48°F. The average humidity was 83%, with a maximum of 100% and a minimum of 36%. The average wind speed was 4 m/s, with a maximum of 14 m/s and a minimum of 0 m/s.
Are you planning a trip in January?
Climate Change Over the Years
This is how Porto climate has changed over the last 43 years.
The climate in Porto in January has not changed that much over the last 43 years.
The average temperature was the lowest in 1979 (+63°F) and the highest in 2022 (+67°F). The driest year was 2007 with only 565 mm of rainfall, and the wettest year was 2022 with 1854 mm.
FAQ
Frequently asked questions about the weather in Porto in January:
Is January a good time to visit Porto?
It’s always a good time to visit Porto, but the weather is changeable in January, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in Porto in January?
January has mild temperatures in Porto. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!
Can you swim in Porto in January?
Swimming in Porto in January is challenging and not recommended for inexperienced swimmers or without proper equipment and preparation.
Is Porto rainy in January?
Porto is often rainy in January. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Porto in January?
The amount of sunny days in Porto during January varies; prepare for a mix of clouds and sun.
Other cities in Portugal
Check out the weather for other cities in Portugal.
For this page, we’ve looked at the typical weather in Porto, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.