18.12
thu
thu
Day
34°F
E 5 mph
Precip.
0%
0%
Night
36°F
N 9 mph
Precip.
0%
0%
19.12
fri
fri
Day
39°F
NE 8 mph
Precip.
0%
0%
Night
39°F
N 13 mph
Precip.
0%
0%
20.12
sat
sat
Day
39°F
NE 9 mph
Precip.
100%
100%
Night
37°F
NE 11 mph
Precip.
0%
0%
21.12
sun
sun
Day
36°F
E 10 mph
Precip.
0%
0%
Night
30°F
E 6 mph
Precip.
0%
0%
22.12
mon
mon
Day
32°F
E 4 mph
Precip.
0%
0%
Night
32°F
NW 3 mph
Precip.
100%
100%
23.12
tue
tue
Day
32°F
SW 12 mph
Precip.
100%
100%
Night
19°F
S 12 mph
Precip.
0%
0%
24.12
wed
wed
Day
14°F
SW 10 mph
Precip.
0%
0%
Night
12°F
S 7 mph
Precip.
0%
0%
25.12
thu
thu
Day
12°F
S 8 mph
Precip.
0%
0%
Night
12°F
S 9 mph
Precip.
0%
0%
26.12
fri
fri
Day
12°F
S 7 mph
Precip.
0%
0%
Night
10°F
E 4 mph
Precip.
0%
0%
27.12
sat
sat
Day
21°F
E 7 mph
Precip.
100%
100%
Night
25°F
S 12 mph
Precip.
0%
0%
28.12
sun
sun
Day
19°F
SE 10 mph
Precip.
0%
0%
Night
18°F
S 12 mph
Precip.
71%
71%
29.12
mon
mon
Day
14°F
S 9 mph
Precip.
0%
0%
Night
10°F
S 7 mph
Precip.
0%
0%
30.12
tue
tue
Day
9°F
S 5 mph
Precip.
0%
0%
Night
7°F
S 4 mph
Precip.
0%
0%
sea water
temperature
temperature
| Lappeenranta |
monthly
weather
weather
| Lappeenranta |
current
weather
weather
| Lappeenranta |
7 days
forecast
forecast
| Lappeenranta |
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 36.9°F. The highest and lowest sea temperatures during the month were 38.7°F and 35.8°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 32.1°F. The highest and lowest sea temperatures during the month were 33.4°F and 30.9°F.
Air temperature in Lappeenranta, °F
Precipitation total in Lappeenranta, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Lappeenranta
Lappeenranta on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Lappeenranta
Local time: 00:42
December 18, thursday
0300
37°F
E
14 mph
14 mph
0600
39°F
SE
14 mph
14 mph
0900
36°F
SE
11 mph
11 mph
1200
34°F
E
5 mph
5 mph
1500
32°F
E
4 mph
4 mph
1800
32°F
N
5 mph
5 mph
2100
34°F
N
6 mph
6 mph
December 19, friday
0000
36°F
N
9 mph
9 mph
