Current sea water temperature:
+59.4°F
| Minimum sea water temperature in September: | 67.5°F |
| Maximum sea water temperature in September: | 51.1°F |
| Average sea water temperature in September: | 59.3°F |
| more information | |
14 days
forecast
forecast
| Lappeenranta |
monthly
weather
weather
| Lappeenranta |
Sea water temperature for the last 10 days:
| September 16 | 59.4°F | September 11 | 59.0°F |
| September 15 | 59.4°F | September 10 | 60.1°F |
| September 14 | 59.7°F | September 9 | 60.4°F |
| September 13 | 59.7°F | September 8 | 60.6°F |
| September 12 | 58.6°F | September 7 | 61.5°F |
Monthly sea water temperature, °F
When is the warmest sea in Lappeenranta?
Based on the data about daily sea water temperature for the last three years the warmest sea in Lappeenranta was noticed in August, July and September.
Monthly Sea Temperatures in Lappeenranta, °F
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 64.9°F. The highest and lowest sea temperatures during the month were 67.5°F and 62.4°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 66.6°F. The highest and lowest sea temperatures during the month were 68.9°F and 64.4°F.
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 60.7°F. The highest and lowest sea temperatures during the month were 62.8°F and 58.6°F.
current
weather
weather
| Lappeenranta |
weather in
September
September
| Lappeenranta |
Best time for vacation in Lappeenranta
Lappeenranta on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Lappeenranta
Local time: 18:52
September 16, wednesday
2100
59°F
N
11 mph
11 mph
September 17, thursday
0000
59°F
N
12 mph
12 mph
0300
57°F
N
13 mph
13 mph
0600
55°F
NE
9 mph
9 mph
0900
55°F
NE
11 mph
11 mph
1200
59°F
NE
14 mph
14 mph
1500
59°F
NE
12 mph
12 mph
1800
57°F
NE
11 mph
11 mph
