07.08
fri
fri
Day
64°F
NE 23 mph
Precip.
10%
10%
Night
59°F
E 16 mph
Precip.
6%
6%
08.08
sat
sat
Day
64°F
NE 13 mph
Precip.
5%
5%
Night
57°F
SE 14 mph
Precip.
5%
5%
09.08
sun
sun
Day
64°F
NE 16 mph
Precip.
6%
6%
Night
64°F
NE 19 mph
Precip.
10%
10%
10.08
mon
mon
Day
66°F
NE 21 mph
Precip.
35%
35%
Night
63°F
NE 19 mph
Precip.
44%
44%
11.08
tue
tue
Day
63°F
SE 13 mph
Precip.
5%
5%
Night
55°F
SE 14 mph
Precip.
8%
8%
12.08
wed
wed
Day
63°F
SE 16 mph
Precip.
8%
8%
Night
59°F
E 16 mph
Precip.
18%
18%
13.08
thu
thu
Day
66°F
NE 15 mph
Precip.
9%
9%
Night
63°F
NE 16 mph
Precip.
13%
13%
14.08
fri
fri
Day
64°F
E 18 mph
Precip.
19%
19%
Night
64°F
NE 14 mph
Precip.
10%
10%
15.08
sat
sat
Day
68°F
E 7 mph
Precip.
4%
4%
Night
61°F
SE 13 mph
Precip.
9%
9%
16.08
sun
sun
Day
64°F
SE 12 mph
Precip.
2%
2%
Night
57°F
S 9 mph
Precip.
3%
3%
17.08
mon
mon
Day
59°F
NW 4 mph
Precip.
3%
3%
Night
61°F
NW 7 mph
Precip.
6%
6%
18.08
tue
tue
Day
55°F
NW 22 mph
Precip.
34%
34%
Night
61°F
NW 27 mph
Precip.
29%
29%
19.08
wed
wed
Day
63°F
NE 6 mph
Precip.
37%
37%
Night
63°F
NE 20 mph
Precip.
33%
33%
20.08
thu
thu
Day
61°F
E 25 mph
Precip.
8%
8%
Night
59°F
E 12 mph
Precip.
5%
5%
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: 11:30
August 07, friday
1200
64°F
NE
23 mph
23 mph
1500
66°F
E
19 mph
19 mph
1800
68°F
E
16 mph
16 mph
2100
64°F
E
15 mph
15 mph
August 08, saturday
0000
59°F
E
16 mph
16 mph
0300
57°F
E
16 mph
16 mph
0600
57°F
E
15 mph
15 mph
0900
61°F
E
12 mph
12 mph
