Rock en Seine 2025: what's the weather forecast for the festival?

Rain or shine? Warm or cool? What kind of weather awaits Rock en Seine festival-goers this week? That's the question. For several months now, regulars at the famous Parisian festival have been looking forward to the Domaine National de Saint-Cloud, where they'll be able to vibrate to the rhythm of tracks by Justice, Chappell Roan, Anyma, Queens of the Stone Age, Aurora, Empire of the Sun, Fontaines D.C. and Last Train.

Rock en Seine 2026: Lorde, Tash Sultana, Wet Leg... the full lineup scheduled by day
Rock en Seine is making its triumphant return to the Domaine national de Saint-Cloud! In 2026, the beloved Parisian festival will once again host five days of live music and celebrations, from Wednesday the 26th through Sunday the 30th of August. What’s on the lineup? Expect headliners like The Cure, Nick Cave & The Bad Seeds, and Tyler, The Creator, alongside sets from Deftones, Turnstile, Franz Ferdinand, and standout performances by Lorde, Tash Sultana, and Wet Leg. [Read more]

But many fear that thunderstorms and rain will spoil the party. So what's the weather forecast for festival-goers? Should they pack a rain poncho in case of showers? Or, on the contrary, will the sun shine over the Domaine national de Saint-Cloud on Wednesday August 20, Thursday August 21, Friday August 22, Saturday August 23 and Sunday August 24, 2025? And what temperatures can we expect? Discover Météo France's forecast.

According to the latest trends, the weather looks set to be rather pleasant, except for the first evening of Rock en Seine. This Wednesday, August 20, rain is unfortunately set to dominate. The weather service is forecasting rain both in the afternoon and evening. So don't forget your poncho and boots! As for the mercury, expect between 19° and 18°C.

• To be read
• Rock en Seine 2025: schedule, times, access... here's everything you need to know
• Rock en Seine 2025: 10 not-to-be-missed bands and artists
• Rock en Seine 2026: Lorde, Tash Sultana, Wet Leg... the full lineup scheduled by day

From Thursday August 21, however, the weather is set to improve significantly, with clear skies forecast for the afternoon. In the evening, " clear skies " are forecast. What about temperatures? Expect 23°C during the day, then 18°C in the evening.

On the following three days, Friday August 22, Saturday August 23 and Sunday August 24, the weather is expected to be almost identical, according to Météo France, which again forecasts clear skies. On Saturday, the skies could be cloudier in the afternoon, but no rain on the horizon. Temperatures are expected to be pleasant, averaging between 21°C during the day and 18°C in the evening. No heat spikes on the cards, then!

As these are forecasts, we advise you to stay tuned to Météo France's forecasts for more information.