Find luxury hotels in New Castle, NH

Planning for the weather is a good way to make your trip to New Castle relaxing and enjoyable, especially when you’re splurging. The hottest months are usually July and August, with an average temperature of 19°C, while the coldest months are January and February, with an average of -1°C. The snowiest months in New Castle are January, April, February and March, with each month seeing an average of 17 cm of snowfall.

Enjoy all that New Castle has to offer when you visit Portsmouth Harbor Lighthouse, Fort Constitution Historical Site and American Independence Museum. If you have extra time while you’re in the area, you might want to stop by Hampton Beach and Ogunquit Beach.