World Resorts

Finland

Porvoo Weather

Porvoo 14 Days Forecast

27.08
thu

Day

63°F

W 2 mph

Precip.
17%

Night

63°F

NE 3 mph

Precip.
20%

28.08
fri

Day

63°F

NE 4 mph

Precip.
19%

Night

63°F

N 11 mph

Precip.
21%

29.08
sat

Day

61°F

NW 24 mph

Precip.
26%

Night

63°F

N 19 mph

Precip.
41%

30.08
sun

Day

61°F

NE 14 mph

Precip.
34%

Night

61°F

NE 14 mph

Precip.
25%

31.08
mon

Day

63°F

NE 16 mph

Precip.
15%

Night

63°F

NW 11 mph

Precip.
58%

01.09
tue

Day

61°F

NE 21 mph

Precip.
54%

Night

61°F

E 17 mph

Precip.
66%

02.09
wed

Day

61°F

E 16 mph

Precip.
34%

Night

57°F

E 16 mph

Precip.
33%

03.09
thu

Day

61°F

E 17 mph

Precip.
69%

Night

55°F

E 16 mph

Precip.
28%

04.09
fri

Day

59°F

E 11 mph

Precip.
12%

Night

57°F

N 11 mph

Precip.
73%

05.09
sat

Day

61°F

NE 16 mph

Precip.
54%

Night

55°F

SE 6 mph

Precip.
45%

06.09
sun

Day

50°F

SW 21 mph

Precip.
30%

Night

50°F

SE 8 mph

Precip.
17%

07.09
mon

Day

52°F

SE 13 mph

Precip.
14%

Night

50°F

S 12 mph

Precip.
7%

08.09
tue

Day

48°F

S 11 mph

Precip.
15%

Night

52°F

SE 7 mph

Precip.
14%

09.09
wed

Day

52°F

S 8 mph

Precip.
5%

Night

55°F

N 4 mph

Precip.
13%

sea water
temperature

Porvoo

monthly
weather

Porvoo

current
weather

Porvoo

7 days
forecast

Porvoo

January
February
March
April

May
June
July
August

September
October
November
December

Show year:

2026

2025

2024

The average sea water temperature in August of 2026 was 61.4°F. The highest and lowest sea temperatures during the month were 66.4°F and 56.3°F.

Show year:

2025

2024

2023

The average sea water temperature in September of 2025 was 59.1°F. The highest and lowest sea temperatures during the month were 64.0°F and 52.3°F.