Flights to Portsmouth, MA, United States

Trusted by millions

Kiwi.com Guarantee for stress-free travel

One search, all the best deals

Weather in Portsmouth

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January0°C-6°C
February1°C-5°C
March5°C-1°C
April11°C3°C
May17°C9°C
June21°C13°C
July25°C17°C
August25°C17°C
September21°C13°C
October15°C8°C
November9°C2°C
December3°C-2°C
Hottest Month
25°C
July
Coldest month
-6°C
January
Sunny days
255
days per year
Snow days
19
days per year

14 day forecast

Saturday
12 Jul
87%
22°C18°C
19 Jul
86%
27°C18°C
Sunday
13 Jul
20°C17°C
20 Jul
78%
27°C18°C
Monday
14 Jul
29°C19°C
21 Jul
29°C17°C
Tuesday
15 Jul
32°C19°C
22 Jul
25°C17°C
Wednesday
16 Jul
66%
27°C20°C
23 Jul
23°C15°C
Thursday
17 Jul
76%
30°C21°C
24 Jul
88%
29°C19°C
Friday
18 Jul
84%
23°C18°C
25 Jul
32°C21°C

Cheapest month to fly to Portsmouth

Explore price trends for trips to Portsmouth

Annual Avg. Price288 GBP
August 2025248 GBP
September 2025242 GBP
October 2025267 GBP
November 2025259 GBP
December 2025265 GBP
January 2026280 GBP
February 2026456 GBP

Frequently asked questions

What are the main airports in Portsmouth, Massachusetts?
How to get from the airport to Portsmouth, Massachusetts?
When is the best time of the year to fly to Portsmouth, Massachusetts?
What to do in Portsmouth, Massachusetts?
When to book your flight to Portsmouth, Massachusetts?
How many days should I stay in Portsmouth, Massachusetts?
What are top tourist attractions in Portsmouth, Massachusetts?
Is it safe walking at night in Portsmouth, Massachusetts?
Explore the map
Explore

We hack the system,
you fly for less