World Resorts

USA

Portsmouth Weather

Portsmouth 14 Days Forecast

29.10
thu

Day

61°F

NE 12 mph

Precip.
4%

Night

55°F

NE 12 mph

Precip.
10%

30.10
fri

Day

64°F

E 15 mph

Precip.
1%

Night

48°F

SE 17 mph

Precip.
4%

31.10
sat

Day

48°F

SE 9 mph

Precip.
1%

Night

39°F

SE 8 mph

Precip.
7%

01.11
sun

Day

55°F

E 7 mph

Precip.
1%

Night

45°F

NE 9 mph

Precip.
6%

02.11
mon

Day

64°F

E 9 mph

Precip.
3%

Night

52°F

E 7 mph

Precip.
9%

03.11
tue

Day

54°F

W 9 mph

Precip.
22%

Night

50°F

W 8 mph

Precip.
19%

04.11
wed

Day

52°F

NW 8 mph

Precip.
18%

Night

46°F

N 5 mph

Precip.
19%

05.11
thu

Day

55°F

NW 6 mph

Precip.
13%

Night

54°F

NW 7 mph

Precip.
42%

06.11
fri

Day

59°F

NW 14 mph

Precip.
50%

Night

59°F

NW 11 mph

Precip.
32%

07.11
sat

Day

59°F

NW 9 mph

Precip.
79%

Night

48°F

NE 6 mph

Precip.
25%

08.11
sun

Day

52°F

E 11 mph

Precip.
6%

Night

43°F

E 11 mph

Precip.
6%

09.11
mon

Day

52°F

E 13 mph

Precip.
6%

Night

45°F

E 7 mph

Precip.
12%

10.11
tue

Day

52°F

NE 3 mph

Precip.
13%

Night

48°F

SW 3 mph

Precip.
48%

11.11
wed

Day

50°F

SW 7 mph

Precip.
19%

Night

46°F

SW 7 mph

Precip.
37%

sea water
temperature

Portsmouth

monthly
weather

Portsmouth

current
weather

Portsmouth

7 days
forecast

Portsmouth

January
February
March
April

May
June
July
August

September
October
November
December

Show year:

2026

2025

2024

The average sea water temperature in October of 2026 was 56.4°F. The highest and lowest sea temperatures during the month were 60.8°F and 53.1°F.

Show year:

2025

2024

2023

The average sea water temperature in November of 2025 was 51.1°F. The highest and lowest sea temperatures during the month were 58.3°F and 47.7°F.