World Resorts Finland Lappeenranta Weather

Lappeenranta sea water temperature

Current sea water temperature:
+33.6°F
Minimum sea water temperature in March: 36.0°F
Maximum sea water temperature in March: 28.8°F
Average sea water temperature in March: 31.0°F

Sea water temperature for the last 10 days:

March 16 33.6°F March 11 32.2°F
March 15 33.6°F March 10 30.6°F
March 14 33.4°F March 9 31.1°F
March 13 32.2°F March 8 32.0°F
March 12 32.7°F March 7 30.7°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:
2025
2024
2023

The average sea water temperature in August of 2025 was 67.9°F. The highest and lowest sea temperatures during the month were 76.1°F and 61.3°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 67.1°F. The highest and lowest sea temperatures during the month were 75.9°F and 59.9°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 61.2°F. The highest and lowest sea temperatures during the month were 64.9°F and 55.4°F.

Best time for vacation in Lappeenranta

Sunniest months:
June 12 days
July 12 days
May 11 days
Warmest months:
July 71.2 °F
August 68.1 °F
June 66.1 °F
Warmest sea temp:
August 65.7 °F
July 65.0 °F
September 59.2 °F
Coldest months:
January 22.1 °F
February 23.9 °F
December 28.6 °F
Rainiest months:
August 5 days
June 4 days
October 4 days
Windiest months:
December 9.4 mph
November 9.1 mph
October 8.8 mph

Lappeenranta on a weather map

Lappeenranta
+37°F
N 5 mph
Feels like: +34°F
Precip.: 76%
Places in Finland:
Name
°F
+39°F
+36°F
+37°F
+32°F
+37°F
+39°F
+36°F
+36°F
+41°F
+34°F
+39°F
+39°F
+37°F
+36°F
+39°F
24 Hours Forecast
Lappeenranta
Local time: 11:30
March 16, monday
1200
37°F
N
5 mph
1500
36°F
N
6 mph
1800
34°F
NW
6 mph
2100
34°F
NW
6 mph
March 17, tuesday
0000
37°F
N
9 mph
0300
36°F
N
7 mph
0600
34°F
N
7 mph
0900
34°F
N
6 mph
Units of measurement: °C / °F