The sweet spot: mild temps, softer crowds, manageable showers With only about a week of summer holidays remaining, conditions are near-perfect for a spontaneous campervan holiday in the UK. Temperatures are comfortable rather than sweltering, evenings still linger, and yes, there’s a bit of rain on the way. That mix plays into van-life’s strengths: fewer crowds mid-week, easier campsite availability, and cosy evenings in a well-insulated camper with hot mugs and board games.