18.07
sat
sat
Day
68°F
N 12 mph
Precip.
25%
25%
Night
66°F
N 23 mph
Precip.
18%
18%
19.07
sun
sun
Day
61°F
E 21 mph
Precip.
22%
22%
Night
59°F
SW 11 mph
Precip.
11%
11%
20.07
mon
mon
Day
61°F
SW 16 mph
Precip.
10%
10%
Night
57°F
SW 23 mph
Precip.
13%
13%
21.07
tue
tue
Day
52°F
SW 20 mph
Precip.
55%
55%
Night
52°F
SW 14 mph
Precip.
39%
39%
22.07
wed
wed
Day
59°F
SW 7 mph
Precip.
21%
21%
Night
57°F
S 11 mph
Precip.
26%
26%
23.07
thu
thu
Day
61°F
S 8 mph
Precip.
15%
15%
Night
57°F
S 14 mph
Precip.
15%
15%
24.07
fri
fri
Day
61°F
S 7 mph
Precip.
9%
9%
Night
55°F
S 8 mph
Precip.
21%
21%
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 62.8°F. The highest and lowest sea temperatures during the month were 65.1°F and 61.3°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 64.7°F. The highest and lowest sea temperatures during the month were 74.3°F and 58.3°F.
Air temperature in Porvoo, °F
Precipitation total in Porvoo, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Porvoo
Porvoo on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Porvoo
Local time: 10:16
July 18, saturday
1200
68°F
N
12 mph
12 mph
1500
70°F
NW
14 mph
14 mph
1800
72°F
NW
19 mph
19 mph
2100
70°F
N
21 mph
21 mph
July 19, sunday
0000
66°F
N
23 mph
23 mph
0300
64°F
N
25 mph
25 mph
0600
63°F
NE
33 mph
33 mph
0900
63°F
E
30 mph
30 mph
