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.
Take E45 and exit at no.61 and take 28 to Vejle. Then onto 18 passing Give, Brande and Herning until you reach Holstebro. Here take the 11 towards Struer, crossing Oddesund until Ydby. Take a left onto 527 shortly after Gettrup and Vestervig. Then drive west from Vestervig. It's the small road on the left, just after the kiosk in Krik City. Actually it is the only road to the left. The spot is close to the city Agger and Vestervig. Just look out for the dam into the lake.
)
)
)
)