ArcTanGent 2026 begins on 19/08 and lasts for 4 days, wrapping up on 22/08. You can stay on site for a maximum of 5 nights.
In the UK, there are 5 other festivals on the same weekend.
Based on its maximum daily capacity of 5,000, we class ArcTanGent as a Small festival.
The festival is considered a family friendly and children are welcomed by the organisers. There’s a dedicated family camping area but there’s no specific children’s entertainment on site. There is no minimum age for entry.
ArcTanGent is a weekend festival with facilities for on-site camping, where you can stay for a maximum of 5 nights. You can also buy day access tickets and arrange your own accommodation.
The 2026 lineup contains 42 acts. Primus, Chelsea Wolfe, Cult Of Luna and Julie Christmas headline the festival.
19th – 22nd August 2026
ArcTanGent is 1 of 39 music festivals in the South West of England. The festival’s full address is: Fernhill Farm, Compton Martin, Somerset, BS40 6LD.
We asked a popular AI tool a few things about ArcTanGent. Here’s what it told us 👇
ArcTanGent stands out for its fiercely curated lineup, focusing almost exclusively on the niche genres of math-rock, post-rock, progressive metal, and experimental music. Unlike larger, more diverse festivals, ATG is a haven for fans of intricate musicianship and boundary-pushing soundscapes. It’s often described as a “musician’s festival,” attracting a dedicated, knowledgeable audience. This specific focus creates a unique, communal experience for those passionate about complex, instrumental, and heavy music, making it a truly specialist event in the UK festival calendar.
First-timers at ArcTanGent should definitely pack for all weather – it’s a British festival, so expect anything! Comfortable shoes are a must for traversing the site. Embrace the opportunity to discover new bands; don’t just stick to the headliners. Bring earplugs; the sound can be intense, in a good way! Planning your schedule in advance helps manage inevitable stage clashes. Finally, engage with fellow attendees; the crowd is famously welcoming, and you’ll find instant connections over shared musical tastes, enhancing the whole experience.
Something not widely known is the strong connection ArcTanGent shares with its sister festival, 2000Trees. Both festivals are run by the same passionate independent team. This shared heritage means ATG benefits from the experienced festival organisers who champion a similar ethos: showcasing incredible live music, fostering a friendly, inclusive atmosphere, and maintaining a strong independent spirit. This underlying operational link helps maintain the high standards and unique character that attendees have come to love at both distinct but related events.
The atmosphere at ArcTanGent is remarkably friendly and inclusive. Despite the often heavy and intricate music, there’s a palpable sense of community among attendees, all united by their love for the unique genres on offer. It’s a very respectful crowd; people are there primarily for the music, leading to intense focus during sets, but a relaxed and social vibe elsewhere. Less about chaotic partying and more about shared musical discovery, ATG cultivates a welcoming, passionate, and slightly nerdy environment where everyone feels at home.
As the information in this box (and this box only!) has been generated by AI, we can't guarantee its accuracy.
Festnav is not affiliated with ArcTanGent and is not responsible for prices, ticket availability or any facilities offered at ArcTanGent.
This information is presented with our best intentions but it may be incorrect as things change.
If you’ve got tickets for 2026 or are hoping to attend, add ArcTanGent your Festival Planner here.
If you’ve been before, add the year(s) you attended to your Festival Profile below.
