Measurements:
°C
°F
Lappeenranta
20°F
NE 6 mph
Feels like: 12°F
Precip: 0%
World Resorts Finland Lappeenranta Weather

Lappeenranta Sea Water Temperature

Current Sea Water Temperature:
+29.0°F
Maximum Sea Water Temperature in March: 34.4°F
Minimum Sea Water Temperature in March: 26.4°F
Average water temperature in March: 28.9°F

Sea Water Temperature for the Last 10 Days:

March 09 29.0°F March 04 27.2°F
March 08 30.0°F March 03 27.0°F
March 07 28.6°F March 02 27.2°F
March 06 28.2°F March 01 27.2°F
March 05 30.4°F February 28 27.2°F

When is the Warmest Sea for Lappeenranta?

According to our data for the last three years for Lappeenranta the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Lappeenranta was 69.9°F. The maximum and minimum values were 62.6°F and 79.0°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Lappeenranta was 69.0°F. The maximum and minimum values were 61.0°F and 78.8°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Lappeenranta was 62.4°F. The maximum and minimum values were 56.0°F and 66.6°F respectively.

Best Time to Visit Lappeenranta
The most sunny months:
June 12 days
July 12 days
May 11 days
The most warm months:
July 73.6 °F
August 70.1 °F
June 67.9 °F
Warmest sea temperature:
August 67.4 °F
July 66.7 °F
September 60.3 °F
The most cold months:
January 19.0 °F
February 21.0 °F
December 26.2 °F
The most rainy months:
August 5 days
June 4 days
October 4 days
The most windy months:
December 9 mph
November 9 mph
October 9 mph

Lappeenranta on the Weather Map

Finland Resorts:
NAME
Espoo +26
Helsinki +26
Imatra +28
Juvaskyla +24
Kemi +26
Lahti +26
Lappeenranta +20
Oulu +30
Pori +30
Porvoo +26
Saariselka +22
Seinajoki +30
Turku +30
Vaasa +30
Vantaa +26
24 Hours Weather Forecast
Lappeenranta
Local time: 04:38
10 mar, tuesday
0600 20°F
NE
6 mph
0900 28°F
NE
7 mph
1200 34°F
NE
9 mph
1500 36°F
NE
9 mph
1800 32°F
NE
7 mph
2100 32°F
NE
9 mph
11 mar, wednesday
0000 32°F
NE
11 mph
0300 32°F
NE
11 mph