Planning for the weather is a good way to make your trip to Ulverston relaxing and enjoyable, especially when you’re splurging. The hottest months are usually July and August, with an average temperature of 14°C, while the coldest months are February and January, with an average of 6°C. The rainiest months in Ulverston are December, November, October and August, with each month seeing an average of 184 mm of rainfall.