Measurements:
°C
°F
CURRENT WEATHER
14:21
Porvoo
48°F
N 6 mph
Feels like: 46°F
Precip: 4%
World Resorts Finland Porvoo Weather

7 Day Weather Forecast

10.19
mon
DAY
48°F
N 7 mph
precip
7%
NIGHT
48°F
N 11 mph
precip
3%
10.20
tue
DAY
48°F
NW 13 mph
precip
4%
NIGHT
50°F
NW 14 mph
precip
6%
10.21
wed
DAY
50°F
NW 18 mph
precip
9%
NIGHT
52°F
NW 16 mph
precip
9%
10.22
thu
DAY
52°F
NW 22 mph
precip
9%
NIGHT
52°F
NW 22 mph
precip
24%
10.23
fri
DAY
50°F
N 15 mph
precip
72%
NIGHT
52°F
NW 4 mph
precip
39%
10.24
sat
DAY
50°F
NW 21 mph
precip
71%
NIGHT
50°F
N 18 mph
precip
35%
10.25
sun
DAY
48°F
N 11 mph
precip
21%
NIGHT
50°F
N 20 mph
precip
25%

Porvoo Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Porvoo was 11.2°F. The maximum and minimum values were 9.7°F and 12.7°F respectively.

Porvoo on the Weather Map

Best Time to Visit Porvoo
The most sunny months:
June 15 days
July 14 days
May 13 days
The most warm months:
July 67.9 °F
August 67.4 °F
June 60.9 °F
Warmest sea temperature:
August 65.0 °F
July 64.5 °F
September 59.4 °F
The most cold months:
February 24.8 °F
January 25.0 °F
March 31.4 °F
The most rainy months:
August 4 days
October 4 days
September 4 days
The most windy months:
December 14 mph
October 14 mph
November 14 mph
more details