🎤Lineup
Day 1· Friday Sep 18€7
LA MVERTE
Electro
M4R4
Alternative
TRIFOUILLE1ER
Hip-Hop
Day 2· Saturday Sep 19€7
ATOMIQUE FLAV
GIL BARTE
LE PRINCE HARRY
Pop
Sourdure
Folk
✈️How to get to GRAND MESS
Planning your trip to GRAND MESS? Here's how to get there by plane, train or car, and plan your route to the festival site.
- Nearest airport: Poitiers-Biard Airport (PIS), about 3 km from the venue.
- Allow about 4 min by car from the airport to the site.
- By train, head for Poitiers/Biard or the nearest major station, then finish by bus, shuttle or taxi to the site.
- By car, plan for on-site parking and expect heavy traffic around the venue on festival days.
Poitiers, France
View on OpenStreetMap🌤️GRAND MESS 2026 weather
Weather in Poitiers in September 2026?
Actual weather at the 2026 edition
From September 17 to September 19, 2026: up to 24°, low of 10°, 1.3 mm of rain in total.
1 rainy day
- Thu, Sep 17Overcast22° / 10° 0 mm
- Fri, Sep 18Drizzle21° / 13° 1.3 mm
- Sat, Sep 19Overcast24° / 10° 0 mm
Day-by-day observed readings at the festival site (Open-Meteo archive).
Typical weather
Overcast
Typical high25°
Typical low12°
Chance of rain: about 33% of days
| 2025 | Overcast | 27° / 13° | 1 rainy day |
| 2024 | Light rain | 23° / 11° | 2 rainy days |
| 2023 | Drizzle | 27° / 14° | no rainy days |
Based on the last 3 years over the same period.
Hour by hour
Tap a day to see how temperature and rain changed across 24 hours.
Same week in 2025: Thu September 18 → Sat September 20 (days aligned on the edition's weekdays).
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