Signal Festival Prague 2025: Your Night-by-Night Guide

Signal is Prague’s flagship light-and-digital-art festival. For four nights the city becomes an open-air gallery of projections, lasers, sound pieces, and interactive works spread across two curated walking routes: City Centre and Vinohrady. The 2025 theme is Solutions, the third chapter of the Ecosystems cycle. Dates and hours this year: Oct 16–19, 2025, daily 19:00–24:00. Most outdoor works are free; a curated set of indoor pieces called Signal INSIDE is ticketed and capacity-limited.

Free vs. Ticketed

• Free outdoor program: Walk the marked routes and experience most installations without a ticket. It is the easiest option if you only have one evening in Prague.
• Signal INSIDE (ticketed): Seven immersive installations inside unique interiors. Time-slotted entry, smaller crowds, deeper experiences. Book online in advance; same-day purchase via official site or on-site QR codes is possible but not guaranteed.

Where to Start

Pick a start station that drops you right into the route and reduces backtracking:

• City Centre route: Staromestska (A) or Namesti Republiky (B)
• Vinohrady route: Namesti Miru (A) or Jiriho z Podebrad (A)

Use the Program & Map page for the live route and last-minute location changes before you leave your hotel.

2025 Must-see Highlights

Aim your walk at these crowd-pleasers, then fill gaps with nearby pieces:

• Old Town Hall Tower mapping (new canvas): A first for the festival and a dramatic use of the tower facade on the City Centre route.
• St. Ludmila Basilica mapping (Namesti Miru): Big-scale visuals on the neo-Gothic facade; easy to pair with a Vinohrady walk.
• Vltava water-screen projection (Dvorak Embankment): A 10×20 m mist screen creates a floating, hologram-like effect over the river.
• End-of-loop LED installation at Palladium / Namesti Republiky: A photogenic finisher on the City Centre route.

Numbers vary slightly by source as opening day unfolds, but expect roughly 17–20 installations total this year, with at least ten free to enter. Check the official map for the final count each night.

Weather Forecast

Quick take: cool, mostly cloudy evenings with a crisp Saturday night—layer up, especially by the river.

• Thu, Oct 16: Considerable cloudiness, around 12 °C early evening, dipping toward 9 °C. A comfortable “warm-up” loop—go at 19:00 to avoid the first peak.
• Fri, Oct 17: Cloudy most of the time, 14/6 °C. Typically the busiest night; consider a late start after 22:00.
• Sat, Oct 18: Partly sunny by day, turning crisp at night, 11/1 °C. Pack a beanie and thin gloves if you plan to linger by the Vltava.
• Sun, Oct 19: Mostly cloudy, 12/2 °C. Calmer crowds—good for catching anything you missed.

What to bring: layered jacket or windbreaker, comfortable shoes (cobbles), pocket umbrella, and a warm-up plan at cafes near Namesti Republiky or Namesti Miru between installations.

Signal is one of Prague’s easiest big events to enjoy as a visitor. Choose a start station, lock one INSIDE slot if you want a deeper moment, and let the city guide you from facade to riverbank. If you have two nights, split City Centre and Vinohrady so you can actually breathe, snack, and take photos without rushing. Have fun—Prague looks different in this light.