São Silvestre Races in Portugal 2026: 5 Events to Register for Before December
There are two types of runners in December.
Those who decide the racing season is officially over, and those who think the best way to end the year is with one more bib number pinned to their shirt.
In Portugal, the second group has plenty of options.
São Silvestre races have become a December tradition, bringing runners together for festive events that often combine competitive 10Ks, shorter distances, walking events, and an atmosphere that feels very different from a typical race morning.
And despite the name, you don’t have to wait until New Year’s Eve to run one.
Some events take place at the beginning of December, while others bring the festive running season right up to the final days of the year.
If you’re looking for a São Silvestre race in Portugal in 2026, here are five events worth adding to your calendar, with official registration available through RaceFinder.
Why Run a São Silvestre Race?
Not every race needs to be a season-defining personal best attempt.
Sometimes, the best reason to sign up is simply to have something enjoyable to look forward to.
São Silvestre races offer a mix of competition and celebration. They’re popular with runners who want one final performance target, but also with friends, running clubs, and families looking for a shared experience.
For runners who have spent the autumn training for a half marathon or marathon, a December 10K can provide a shorter-distance challenge without committing to another long race.
For beginners, shorter events and walking options can make the atmosphere more accessible.
And for everyone else? It’s a good excuse to keep running when the days get shorter and staying on the sofa starts looking increasingly attractive.
5 São Silvestre Races in Portugal to Try in 2026
1. São Silvestre Cidade de Ermesinde — Start December with a Race
1 December 2026 | Ermesinde, Valongo
Distances: 10 km race and 5 km walk
Why wait until the final week of the year?
The São Silvestre Cidade de Ermesinde takes place on 1 December, giving runners an opportunity to kick off the festive season with a race rather than wait until Christmas.
The competitive 10K starts at 18:00, followed by a non-competitive 5K walk at 18:05.
With electronic timing for the 10K, a finisher medal and a technical event T-shirt included in the participant package, it’s a strong option for runners looking for an organised end-of-season challenge.
There’s also an interesting incentive for running clubs: for every 10 athletes registered from the same team in the 10K, the organisation offers an additional registration.
If your running group has been discussing one last race together, this could be the motivation you need.
Explore São Silvestre Cidade de Ermesinde and register on RaceFinder
2. São Silvestre de JAM — A Different Distance in Mozelos
5 December 2026 | Mozelos, Santa Maria da Feira
Distances: 8.6 km race and 4.3 km walk
Not every December race has to be a 10K.
The São Silvestre de JAM, associated with the São Silvestre de Mozelos, offers a slightly different challenge: an 8.6 km competitive race through the streets of Mozelos.
The course consists of two laps, while the accompanying 4.3 km walk offers a more relaxed way to participate.
There’s a strong community element to the event, with a solidarity walk and prizes for individual and team performances.
The unusual race distance is part of its appeal.
It’s long enough to be a meaningful challenge but short enough to approach differently from a half marathon or longer endurance event.
For runners who enjoy discovering smaller regional races, it’s also an opportunity to experience a local event rather than another large city race.
Explore São Silvestre de JAM and register on RaceFinder
3. São Silvestre da Batalha — A Race for the Whole Family
12 December 2026 | Batalha, Leiria
Distances: Approximately 10 km race, 5 km walk and children’s races
One of the challenges of planning a race weekend with family or friends is finding an event that offers something for everyone.
The 13th São Silvestre da Batalha makes that easier.
Alongside the main 10K road race, there’s a 5K walk and a programme of youth events with distances adapted to different age groups.
The children’s races take place earlier in the afternoon, followed by the main race at 17:00 and the walk at 17:15.
For competitive runners, the event includes age-group classifications and awards.
For families, it’s an opportunity to turn a running event into a shared afternoon out.
And because Batalha is known for its historic monastery and surrounding heritage, you can also use the occasion to explore somewhere beyond your usual training routes.
Explore São Silvestre da Batalha and register on RaceFinder
4. São Silvestre Baía do Seixal — Race by the Water
19 December 2026 | Seixal, Setúbal
Distances: 10 km race, 5 km walk and Kids Race
A festive running event with a waterfront setting?
The São Silvestre Baía do Seixal offers exactly that.
Taking place around the Baía do Seixal, the event brings together competitive runners, walkers and younger participants.
The programme begins with the Kids Race at 16:45, followed by the 10K at 17:30 and the 5K walk shortly afterwards.
The main race uses electronic chip timing, with classifications for different age groups and prizes for individual and team performances.
The location is another reason to consider it.
Rather than racing through a conventional city-centre route, participants experience the surroundings of the Seixal waterfront, offering a different atmosphere for a December event.
For runners based in the Lisbon metropolitan area, it’s an appealing opportunity to discover a race on the south bank of the Tagus.
Explore São Silvestre Baía do Seixal and register on RaceFinder
5. São Silvestre de Famalicão — A Festive Night Race
23 December 2026 | Vila Nova de Famalicão, Braga
Distances: 10 km race and 4 km walk
If you prefer the excitement of evening races, the São Silvestre de Famalicão deserves a look.
Scheduled for 23 December, just two days before Christmas, the event starts at 21:30 in front of the Câmara Municipal de Vila Nova de Famalicão.
Both the competitive 10K and non-competitive 4K walk take place in the evening, bringing a festive atmosphere to the town centre.
The event is a well-established part of the local sporting calendar, attracting runners looking to combine competition with a celebration of the season.
It’s also an interesting choice for athletes who don’t usually race at night.
Running after dark brings a different experience from an early Sunday start, with cooler conditions, city lights and a crowd that can make the evening feel more like a celebration than a conventional race.
For runners in northern Portugal, it’s a fitting way to wrap up the season before Christmas.
Explore São Silvestre de Famalicão and register on RaceFinder
Why Register for Your December Race in October?
December still feels a long way off in October.
But there are good reasons to decide on your final race of 2026 sooner rather than later.
You can plan your training around a specific goal. Whether you’re aiming for a faster 10K or simply want to complete a race comfortably, having a date on the calendar helps give your training some direction.
You can avoid last-minute registration problems. Popular events may have participant limits, registration deadlines or different price phases. Checking early gives you more options.
You can coordinate with friends or a running club. A group race requires a little more organisation, especially if people are travelling from different cities.
You can plan around holiday commitments. December calendars fill up quickly with work events, family celebrations and travel. Registering early makes it easier to choose an event that fits.
And perhaps most importantly, it gives you something to look forward to during the final weeks of the year.
How to Choose the Right São Silvestre Race
Before choosing your event, think about what you want from the experience.
If you’re chasing a personal best, prioritise the course profile, race distance and conditions rather than the festive atmosphere alone.
If you’re running with friends, check whether the event accepts team registrations and offers distances that suit everyone’s experience.
If you’re bringing family members, look for walking routes and children’s races.
And if you’re travelling, consider the start time and how easy it will be to collect your race bib.
An evening race may sound appealing, but it could require an overnight stay or a different travel plan.
Whatever you choose, always check the official event information and regulations before registering.
One Last Starting Line Before 2027
A São Silvestre race doesn’t have to be your fastest or longest race of the year.
It can be the race where you finally convince a friend to join you.
The one where your running club shows up together.
Or the one where you look back at everything you’ve achieved in 2026 and realise that you’ve come further than you expected.
There is something satisfying about ending a year in motion.
And with São Silvestre races taking place across Portugal throughout December, you don’t need to wait until New Year’s Eve for one final finish line.
Ready to find yours?
Explore running events in Portugal on RaceFinder and discover your next race, from competitive road events to community runs and festive challenges.
Because sometimes the best way to finish one year is to start thinking about the next race.
