PostgreSQL community event
Last verified: October 28, 2026 · how we verify
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CERN PGDay 2027 is a one-day PostgreSQL conference co-organised by CERN and the Swiss PostgreSQL Users Group (SwissPUG). Run as a not-for-profit community event, it serves PostgreSQL users, developers and enthusiasts across western Switzerland and the neighbouring French border regions, and all sessions are presented in English. The conference takes place on Friday 12 February 2027 on the CERN site in Meyrin, just outside Geneva and reachable by tram from the city centre. The single-track programme of seven sessions is built around four themes: high-performance science and big data, AI and vector search with pgvector and retrieval-augmented generation, enterprise security and data sovereignty, and PostgreSQL extensibility and internals. A keynote from CERN reflects the laboratory's own reliance on databases for scientific workloads. A single track means every attendee shares the same talks, which makes the social event that follows a natural place to continue discussions with speakers and fellow users. Some sessions are recorded, and the event follows the PostgreSQL Code of Conduct. As a PostgreSQL conference in Geneva in 2027, CERN PGDay connects the regional database community with one of the world's most data-intensive research institutions.
CERN PGDay 2027 takes place February 12, 2027 in Geneva, Switzerland.
CERN PGDay 2027 is an in-person event.
CERN PGDay 2027 is organized by PostgreSQL community event.
Travel questions? See Good to know in the travel guide below.
CERN PGDay puts a PostgreSQL crowd on the CERN campus at Meyrin in mid-February, on the outskirts of Geneva right against the French border. February here is properly wintry, with the Jura ridge and the Alps both under snow and Lake Geneva grey and still. The draw is the setting as much as the schedule: few conferences are held inside a particle physics laboratory.
Geneva Airport (GVA) is unusually close to the city at around 4 km, and arriving passengers can collect a free short-duration public transport ticket in the baggage hall. Tram 18 runs from the city out to the CERN terminus in roughly 20 minutes, which is the simplest way to reach the campus. Hotels issue a Geneva Transport Card covering local transit for the length of your stay.
Skip the taxi queue — pre-book a fixed-price airport transfer with Welcome Pickups. Exploring beyond the city? compare rental cars on EconomyBookings.
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Swiss mobile coverage is excellent, but note that the CERN site straddles the French border and phones can silently roam onto French networks. An eSIM with regional European coverage avoids an unpleasant bill. Set up an eSIM with Airalo before you board and you're online the moment you land.
CERN Science Gateway. The laboratory's public science centre at Meyrin, with exhibitions on particle physics, a genuine stretch of decommissioned accelerator, and hands-on labs. Entry is free but popular sessions need booking. Two to three hours, and it sits directly beside the conference campus, making it the obvious use of a spare morning.
Old Town and Saint Pierre Cathedral. Geneva's hillside old quarter is a short tram ride from the centre, with the cathedral tower giving a view over the lake and rooftops. The archaeological site beneath the cathedral is the more interesting half. Around two hours, and the narrow streets are sheltered enough to enjoy in February.
Jet d'Eau. The 140-metre lake fountain is Geneva's emblem and runs through winter, weather permitting, visible from most of the waterfront. It is a fifteen-minute stop rather than a destination, best combined with a walk along the Quai du Mont-Blanc. Expect spray and wind on the pier.
Mont Saleve cable car. Just across the French border, the cable car climbs to a ridge with a full panorama over Geneva, the lake and toward Mont Blanc in clear conditions. Bring your passport, since you are crossing into France. Half a day, and check the winter operating schedule before setting out.
Do I need a visa for the CERN site?
CERN sits partly in France, and some accommodation or excursions may put you across the border. Carry your passport and check that your visa or permit covers both Switzerland and France.
How do I get to CERN from the city?
Tram 18 runs from central Geneva out to the CERN terminus in about 20 minutes. Hotel guests receive a free Geneva Transport Card covering it.
What is the weather like in February?
Cold, often below freezing overnight, with the surrounding mountains snow-covered. A warm coat and proper footwear are necessary, especially around the exposed lakefront.
Travel notes written for CERN PGDay 2027 attendees. Links marked above are affiliate links — we may earn a commission at no cost to you. Verify schedules and opening hours on official websites before you travel.
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