Porto in January: Weather, Rain Days, Sea Temperature and Opening Hours

PORTO · JANUARY · 41.15° N

January is the darkest month on Porto’s clock and one of its wettest. On the 15th the sun comes up at 07:56 and is gone by 17:31, which leaves 9 hours 35 minutes of usable light, and the weather station out at Pedras Rubras logs 5.94 inches of rain across the month. Granite goes black and shiny, the viewpoints empty out before six, and the city carries on with the lights on.

What the month gives back is a workable timetable: an average high of 57.2°F that never demands a serious coat, a Clérigos Tower still open at 19:00 an hour and a half after dark, and a Palácio da Bolsa charging the same €14 it charges in July. What it takes away is the Atlantic, sitting at 57.5°F, and roughly four days in ten with rain on the ground.

On this page

• Porto weather in January57.2°F days, 5.94 inches, 12.8 wet days
• Can you swim in Porto in January?A 57.5°F sea, and how that figure is measured
• How busy is Porto in January?€3 per person per night, capped at 7
• What’s open in Porto in JanuaryLello, Clérigos and the Bolsa winter timetable
• Two days in Porto with short daylightAn itinerary built around a 17:31 sunset
• January or February in Porto?Three months side by side, in figures
• Is January a good time to visit Porto?Who should book it and who should shift

Two constraints shape everything else. The sun sets at 17:31 in mid-month, and the Palácio da Bolsa switches to a winter timetable from November through March, closing for lunch and shutting at 17:30. Everything that is not tied to the date, the neighborhoods, the port houses across the river, belongs to the Porto and the north guide, and the year-round comparison sits in our month-by-month verdict for Portugal.

Porto weather in January: average highs, lows and rain days

These figures come from IPMA, Portugal’s national weather service, and specifically from station 545 at Porto Pedras Rubras, a real thermometer at 67.7 meters rather than a modeled grid cell. Its 1991–2020 normals give January an average high of 57.2°F, an average low of 43.5°F and 5.94 inches of rain. That high runs below both December (58.5°F) and February (59.0°F), making January the coolest of the three by a degree or so.

Rain arrives on 12.8 days in an average January, counting anything from 1 mm (0.04 inch) upward, and 5.5 of those days deliver 10 mm or more (0.39 inch). Note the thresholds: US tables usually start counting at 0.10 inch, so the two sets of numbers are not interchangeable. Translated into a week on the ground, expect measurable rain about four days in ten, and a soaking heavy enough to end an outdoor plan roughly one day in six.

The gap between the average high and the average low is 13.7 degrees, small by winter standards, which means the day never really warms up and the night never really bites. A waterproof shell, one warm mid-layer and shoes with grip on wet granite cover it. Umbrellas fare badly on the riverfront when it blows. Our full list sits in the Portugal packing guide.

Daylight on January 15 runs 9 hours 35 minutes, from 07:56 to 17:31 on the local clock, since Portugal keeps UTC through the winter. Under cloud, the useful light closes down well before that sunset time. Anything you want to photograph from a height belongs to the window between 09:00 and about 16:30, and dinner starts feeling appropriate at six.

Can you swim in Porto in January? Sea temperature and what it feels like

The sea off Porto averages 57.5°F (14.2°C) in January, from the Open-Meteo Marine dataset over 2015–2024. One thing to know about that reading: it is the mean of daily maxima, so it runs a shade warmer than a true 24-hour average. It is also a model product rather than a moored buoy, which makes it a solid indication of the month and a poor guide to any single morning.

Put next to the air, the number looks stranger still: the water at 57.5°F is warmer than the average afternoon high of 57.2°F. That does not make it swimmable in the sense most visitors mean. Water in the mid-fifties takes heat out of an unprotected body fast, and the people you will see in it are wearing full wetsuits. A five-minute plunge is a story to tell; an hour is not on the table.

On wind and swell we have nothing verified for this coast in January, so this guide quotes no wave heights and no gust figures. What we can say from the rain record is that the 5.5 days carrying 10 mm or more tend to be the days the coast road feels least appealing. Check the local sea state on the morning itself, and treat the beach as a walk rather than a swim.

How busy is Porto in January? Crowds, prices and the €3 tourist tax

No monthly price or occupancy series for Porto passed our checks, so there is no index quoted here and no claim about where January sits in the annual curve. What we can price precisely is the fixed layer, which does not move with the season: the reusable Andante Azul card at €0.60, a Z2 title covering central Porto at €1.40 for one hour, ten titles plus one free at €14.00, and the Andante Tour 1 at €7.50 for 24 hours or Tour 3 at €16.00 for 72.

The January booking problem is a timetable problem. From November to March the Palácio da Bolsa runs 09:00 to 13:00 and 14:00 to 17:30, a three-and-a-half-hour afternoon rather than a nine-hour day, and its 30-minute tour is mandatory, with the language assigned in order of arrival among Portuguese, Spanish, French and English. Turn up at a busy hour and you wait for the English slot. Livraria Lello, meanwhile, closes entirely on January 1.

Porto charges a Taxa Municipal Turística of €3 per overnight stay, capped at seven consecutive nights. It follows the head count rather than the room key, so two adults on a five-night stay hand over €30 at checkout. Children of 12 and under are exempt, as are stays for medical treatment and visitors with a disability of 60 percent or more, the last two extending to two companions each, on proof.

One upgrade genuinely earns its price in a wet month: the day pass. Six Z2 rides cost €8.40 at the single fare and €7.64 out of the eleven-title book, against €7.50 for an Andante Tour 1, so the pass pays from the sixth validation in 24 hours. On a 10 mm day, when the plan becomes a chain of short indoor hops, that sixth ride happens by mid-afternoon.

Things to do in Porto in January

January hands you one thing the summer cannot: a lit city seen from a tower at a civilized hour. The Clérigos Tower opens every day from 09:00 to 19:00, and with the sun gone at 17:31 you get roughly ninety minutes of illuminated rooftops before the last climb. The same view in June needs the tower’s 23:00 summer closing to exist at all, and by then most visitors have eaten.

The indoor list, priced: Livraria Lello, €15.95, open 09:00 to 19:30 daily and closed on January 1, with the ticket working as a voucher deducted from any book among Lello’s own editions, and required even if buying is all you came for. Palácio da Bolsa, €14, or €9.50 for students, schools and seniors, on that mandatory half-hour tour. Serralves, €24 for the museum, Siza wing, park, treetop walk, villa and House of Cinema, or €15 for the park alone.

Free entry is thinner than the noticeboards suggest. Serralves opens free on the first Sunday of the month only to holders of a Portuguese Citizen Card or Resident Card, at the box office and never online; a visitor from abroad pays the full €24 that same Sunday. Children under 12 do go free at Serralves, and free at the Bolsa when accompanied by an adult outside children’s groups, and they are exempt from the €3 nightly tax as well.

Porto in January: two-day itinerary and daylight hours

Start at 09:00, when Lello and the Clérigos Tower both open. Take Lello first at €15.95, while the aisles still have air in them, then the Palácio da Bolsa for a morning tour before its 13:00 lunch closure. Eat late, walk the Ribeira through the flat gray middle of the afternoon, and be back at the foot of the tower by 18:00. Sunset lands at 17:31, the tower holds until 19:00, and the rooftops are fully lit while you are still up there.

Give the second morning to Serralves: €24 for the whole estate, €15 for the park by itself, and no discounted late-afternoon ticket in winter, since that one runs only from August 3 to September 30. If the rain turns up in its 10 mm form, the kind that lands 5.5 days a month, buy the €24 and spend the day in the museum and the Siza wing rather than the treetop walk. Under-12s enter free either way.

Porto in January vs December and February

All three columns come from the same IPMA station and the same 1991–2020 period, with one caveat worth carrying: the January wet-day count uses the 1 mm threshold, while December and February are given at 0.10 inch, so the three counts sit close without being strictly comparable. On temperature the spread is trivial, 1.8 degrees between the coolest month and the warmest. On rain it is not: February is 2.09 inches drier than January.

Shift four weeks forward and you buy the drier month, roughly three fewer wet days and a longer afternoon, while the sea stays exactly where it was at 57.5°F. Shift four weeks back to December and the water is the warmest of the three at 59.2°F, but the rain total climbs to 6.04 inches and the light is shorter still. February is the better trade for anyone who plans to walk.

Is January a good time to visit Porto?

Yes, if your Porto is an indoor city with walks between the tickets. The month costs nothing extra at the door, every major site here keeps its price, and 57.2°F asks for a shell rather than a parka. No, if the trip depends on beach hours, long park afternoons or a schedule that assumes light after six. Four days in ten with rain will find the weak point in an outdoor plan.

If that second description fits, move to February. The reasons are numerical: 3.85 inches of rain against 5.94, ten wet days against twelve point eight, and an average high of 59.0°F. Nothing improves in the water, which sits at 57.5°F in both months, so a February booking buys dry feet and daylight, not swimming. Anyone chasing warm sea should be reading about a different season entirely.

What January alone delivers: the Clérigos Tower at a quarter to six, the city already lit below, and an hour still in hand before it closes and dinner starts.

The last word

Build the two days around the timetable rather than the forecast: with the sun gone at 17:31 and Lello’s shutters down at 19:30, the afternoon is shorter than the rain is heavy. One piece of small print for the machines: the €0.60 Andante Azul card holds only one kind of title at a time, so a Z2 city card cannot carry a Z3 trip alongside it. Buy the second card and skip the argument at the platform.

Sources & data for this guide

• January normals, rain-day counts and the December and February figures · IPMA, normais climatológicas 1991-2020, station 545 Porto Pedras Rubras, 67.7 m · checked Sep 13, 2026
• Sea surface 57.5°F, mean of daily maxima 2015-2024 · Open-Meteo Marine API · checked Sep 13, 2026
• Daylight of 9h35, sunrise 07:56 and sunset 17:31 on January 15 · sunrise-sunset.org · checked Sep 13, 2026
• Andante Azul card, Z2 to Z8 fares, Tour 1 and Tour 3 · Metro do Porto official Fares page · checked Sep 13, 2026
• Livraria Lello €15.95 ticket, 09:00-19:30 hours and the January 1 closure · Livraria Lello official site and FAQ · checked Sep 13, 2026
• Clérigos Tower 09:00-19:00 daily · torredosclerigos.pt · checked Sep 13, 2026
• Serralves €24 and €15 tickets, resident pricing, under-12 entry, August-September late ticket · Fundação de Serralves, Visitar Serralves · checked Sep 13, 2026
• Palácio da Bolsa €14 and €9.50 tickets, mandatory 30-minute tour, November-March timetable · Palácio da Bolsa official site, Tourism · checked Sep 13, 2026
• Taxa Municipal Turística of €3 per person per night, seven-night cap and exemptions · Câmara Municipal do Porto official leaflet · checked Sep 13, 2026
• Editorial admission: January’s wet-day count uses IPMA’s 1 mm threshold while the December and February counts are given at 0.10 inch, so the three sit close without being interchangeable.
• Editorial admission: we could not read which fare zone the airport falls in, and no verified monthly price or occupancy series for Porto was available, so neither figure appears above.