Flights to Portsmouth, MA, United States

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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
4 Oct
30°C10°C
11 Oct
19°C7°C
Sunday
5 Oct
25°C14°C
12 Oct
82%
17°C10°C
Monday
6 Oct
25°C13°C
13 Oct
83%
14°C13°C
Tuesday
7 Oct
27°C15°C
14 Oct
86%
15°C13°C
Wednesday
8 Oct
84%
19°C9°C
15 Oct
77%
20°C6°C
Thursday
9 Oct
14°C6°C
16 Oct
10°C3°C
Friday
10 Oct
17°C4°C
17 Oct
11°C1°C

Cheapest month to fly to Portsmouth

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Showing prices in CAD

Annual Avg. Price268 CAD
November 2025242 CAD
December 2025214 CAD
January 2026226 CAD
February 2026234 CAD
March 2026297 CAD
April 2026266 CAD
May 2026396 CAD

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