Porto weather in January
Temperature, sea and sunshine in January: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in January
Fair
Best time to visit: May – September
What is the weather like in Porto in January?
In January, Porto is cool: daytime highs average 13 °C, and nights cool down to about 6 °C. The sea averages 13.7 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 156 mm in total. All in all, January is a so-so month for a holiday in Porto.
January compared
How the weather changes from December to February. Tap a month to open it.
| DecemberDec | JanuaryJan | FebruaryFeb | |
|---|---|---|---|
| Score | 45 | 43 | 59 |
| Day | 14° | 13° | 14° |
| Night | 7° | 6° | 7° |
| Sea | 14° | 14° | 13° |
| Sun | 5 h | 5 h | 6 h |
| Rain days | 13 | 13 | 10 |
More details for January
- Daylight
- 9 h 31 min07:58 – 17:29
- UV index
- 2 · lowclear sky, noon (estimate)
- Muggy days
- 0 daysdew point 18 °C or more
- Wind
- 18 km/haverage daily peak
- Cloud cover
- 61 %on average
- Hot days
- 0 days30 °C or more
- Time zone
- UTC+0Europe/Lisbon
How the score comes together
- Temperatureweight 50 %49 %
- Sunshineweight 20 %35 %
- Few rainy daysweight 30 %39 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in January
- A jumper for the evenings
- Rain jacket or umbrella
Porto in January: quick answers
Is Porto hot in January?
No. In January, Porto is cool: daytime highs average 13 °C and nights drop to about 6 °C.
Can you swim in Porto in January?
Only if you don't mind cold water: in January the sea averages just 13.7 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Porto in January?
Rain is frequent, with about 13 rainy days and 156 mm in total.
Porto month by month
The whole year in PortoAll destinations: Portugal
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)