The season goes from April to November. In that time air from spring 10-20°C, in summer up to 30°C and autumn 10-16°C. Water spring 8-13°C, summer 18-23°C, autumn 8-14°C. You always need a wetsuit. You can go out off-season but it will be very cold, a thick wetsuit or better drysuit, mask, shoes and gloves recommended.
From Thisted airport, take the hi-road nr. 11 towards Alborg, and when you reach the gassoline station at Øsløs, take the first dirt road on your right. Bus from Alborg or Thisted 3-4 times daily, about 1 hour with car from both towns max.
Best spot in Jytland. Not so known, but some days many people there. International rules must be followed then, but normally just a few riders, so few problems.