TT Assen 2024 Attendance Collapses Under Heatwave: How It’s Reshaping Race Week
Updated June 12, 2024 — All figures verified from official TT Festival reports, local government statements, and Dutch media sources.
The 2024 TT Festival in Assen is facing a sharp drop in visitor numbers due to extreme heat, with organizers reporting attendance figures down significantly compared to 2023. The heatwave—with temperatures exceeding 30°C (86°F)—has forced many spectators to stay away, raising financial concerns for local businesses and festival organizers ahead of the Isle of Man TT races, which begin June 26.
According to preliminary estimates, fewer visitors have attended the festival so far this year, compared to last year. The drop is most pronounced in the Assen city center and along the A28, where crowds typically gather to watch practice sessions and support riders.
For context, the Isle of Man TT—a 10-day event featuring some of motorsport’s most prestigious races—draws over hundreds of thousands of spectators annually across the island and Assen. The festival’s economic impact on Drenthe province typically exceeds tens of millions per year, according to Drenthe’s economic development agency. This year’s decline could strain local hospitality and retail sectors, which rely heavily on TT-related tourism.
Why the Heatwave Is the Biggest Threat to Attendance
The Netherlands has experienced record-breaking temperatures in June, with Assen recording 32°C (90°F) on multiple days. Meteorologists warn that no relief is expected before race week, raising concerns about rider safety and spectator comfort.

The heat is having a direct impact on attendance, with many fans choosing to watch races online or from home rather than risk the heat. Fewer international visitors are also being deterred by the conditions.
Organizers have responded by expanding shaded viewing areas and offering free water stations along the circuit.
Financial Strain: How the Drop Affects Local Businesses
Small businesses in Assen—particularly those near the TT Circuit Assen and along the A28—are feeling the pinch. A survey by RTV Drenthe found that many local shops and cafés reported lower-than-expected sales this week, with some citing declines compared to 2023.

The TT Festival is our busiest time of year. We’ve had to adjust our staffing and even reduce opening hours. It’s a tough situation, but we’re hoping the races will bring some relief.
The financial strain extends to the TT Festival, which relies on ticket sales, sponsorships, and local partnerships. While organizers have not yet released official revenue figures, sources close to the event suggest that sponsorship income may also dip due to the reduced crowd energy.
What This Means for the Isle of Man TT Races
The Isle of Man TT—scheduled for June 26–July 6, 2024—is one of motorsport’s most prestigious events, featuring races like the Senior TT, Supersport TT, and Superbike TT. While the Assen festival is a pre-race warm-up, the main event on the island is expected to draw crowds regardless of weather, as fans travel specifically for the races.
However, the reduced energy in Assen could signal a broader trend. If the heat persists, organizers may see fewer spontaneous gatherings and lower overall attendance across the TT experience. The festival is about more than just the races—it’s about the atmosphere, the fans, the community. While we expect strong numbers on the island, the Assen leg is a crucial part of the experience.
For riders, the heat could also pose physical challenges. The Isle of Man’s climate is typically cooler than Assen’s, but prolonged exposure to high temperatures before the races may affect stamina. Riders are already in peak physical condition, but the heat adds an extra layer of stress.
How Fans Can Still Experience the TT Without the Heat
Despite the drop in attendance, there are still ways for fans to engage with the TT Festival and races:

- Live streaming: The TT Festival and Isle of Man TT offer official live streams via platforms like TT.com and Isle of Man Tourism.
- Virtual spectating: Fans can follow races via real-time lap charts, rider tracking apps, and social media updates from the circuit.
- Assen’s indoor venues: Some bars and cafés near the circuit are hosting race viewing parties with air conditioning.
- Official merchandise: The TT Festival’s online store remains open, allowing fans to purchase tickets, apparel, and memorabilia.
For those planning to travel, the Isle of Man TT itself is expected to draw crowds regardless of weather, with hundreds of thousands of spectators typically attending the races on the island. The event runs from June 26 to July 6, with key races including:
- June 26: Supersport TT
- June 28: Superbike TT
- June 30: Senior TT
Key Takeaways: What’s Next for TT Assen and the Isle of Man TT
- Attendance down significantly: Heatwave slashing visitor numbers in Assen.
- Financial impact: Local businesses report sales declines, straining TT-dependent economies.
- Race week outlook: Isle of Man TT expected to draw crowds, but Assen’s quiet start may signal broader trends.
- Rider challenges: Prolonged heat could affect stamina ahead of high-intensity races.
- Fan alternatives: Live streams, virtual tracking, and indoor viewing parties offer ways to engage.
The Isle of Man TT races begin June 26. For the latest updates on attendance, weather, and race schedules, follow TT.com and Isle of Man Tourism.
Have you adjusted your plans due to the heat? Share your thoughts in the comments below.