Measurements:
°C
°F
CURRENT WEATHER
15:32
Porvoo
66°F
E 17 mph
Feels like: 66°F
Precip: 9%
World Resorts Finland Porvoo Weather

7 Day Weather Forecast

08.19
wed
DAY
62°F
SE 6 mph
precip
17%
NIGHT
58°F
E 13 mph
precip
15%
08.20
thu
DAY
60°F
NW 7 mph
precip
14%
NIGHT
56°F
SE 13 mph
precip
75%
08.21
fri
DAY
60°F
N 11 mph
precip
22%
NIGHT
60°F
N 7 mph
precip
24%
08.22
sat
DAY
62°F
NE 13 mph
precip
19%
NIGHT
60°F
E 16 mph
precip
12%
08.23
sun
DAY
64°F
NE 9 mph
precip
16%
NIGHT
60°F
E 12 mph
precip
39%
08.24
mon
DAY
60°F
S 7 mph
precip
16%
NIGHT
56°F
S 11 mph
precip
27%
08.25
tue
DAY
58°F
SW 7 mph
precip
24%
NIGHT
62°F
W 4 mph
precip
11%

Porvoo Sea Water Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Porvoo was 17.0°F. The maximum and minimum values were 15.1°F and 19.1°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 67.5 °F
June 60.9 °F
Warmest sea temperature:
August 65.2 °F
July 64.5 °F
September 59.5 °F
The most cold months:
February 24.8 °F
January 25.0 °F
March 31.4 °F
The most rainy months:
August 5 days
October 4 days
September 4 days
The most windy months:
December 14 mph
October 14 mph
November 14 mph
more details