Cheap flights to Portsmouth, NH
Flights to Portsmouth, NH in 2024
Find the latest flights to Portsmouth in 2024, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 180,682 searches and data was last updated on 26 July 2024.
Temperature and rainfall in Portsmouth by month
Plan your trip to Portsmouth by taking into account the average temperature and rainfall totals by month.
BOS Temperature | -1 - 23 °C |
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If weather is an important factor for your trip to Portsmouth, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -4.0 C).
When is the best time to book a flight to Portsmouth?
Use this chart to determine the optimal time to book a return flight to Portsmouth. Price data was last updated on 23 July 2024.
The best time to book flights to Portsmouth is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
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Complete your tripReserve a car hire and hotel room to complete your trip to Portsmouth.
Reserve a car hire and hotel room to complete your trip to Portsmouth.
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