United Kingdom's only island city, Portsmouth has a lot in store for traveller of every kind. With numerous attractions and some great things to do, planning a trip to Portsmouth should be done only after keeping the weather in mind. Being a port city, the weather is generally mild and the winter is not that cold. Hence, if you love to swim, then the sea temperature is suitable for taking a dip, throughout the year.
But the best time to visit Portsmouth is during the months of January, February, March and November.