August is the most popular time to visit Portsmouth, as it falls within the peak season from July to September. During these vibrant summer months, the city buzzes with activity, attracting travelers who are eager to explore its rich maritime history, picturesque waterfront, and lively cultural scene. Expect to enjoy warm temperatures, typically ranging from the mid-50s to low 70s Fahrenheit, making it ideal for outdoor sightseeing and leisurely strolls along the historic harbor.
July marks the height of tourist activity, with numerous events and festivals celebrating the local culture. Visitors can take advantage of the long days filled with sunshine, great for exploring attractions like the historic dockyard, the iconic Spinnaker Tower, and the charming streets of Old Portsmouth. The outdoor cafes and local markets create an inviting space where you can indulge in fresh seafood and local delicacies.
If you're looking for a more budget-friendly option, consider visiting Portsmouth in December. While the weather is cooler, with temperatures in the mid-30s to low 50s Fahrenheit, this month offers a unique charm. You can experience the festive spirit of the holiday season, including Christmas markets and seasonal events that showcase the city's character.
Ultimately, your choice of when to visit Portsmouth will depend on whether you prefer the bustling summer vibe filled with activities or the cozy, quieter atmosphere of winter festivities.