Water temperature in Lappeenranta

This data the coastal Lappeenranta water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current water temperature in Lappeenranta

Water temperature in Lappeenranta today is 12.7°C. Based on our historical data over a period of ten years, the warmest water in this day in Lappeenranta was recorded in 2024 and was 14.4°C, and the coldest was recorded in 2013 at 10.1°C. Water temperature in Lappeenranta is expected to drop to 10.3°C in the next 10 days. September average water temperature in Lappeenranta is 14.6°C, the minimum temperature is 10°C, and the maximum is 19.3°C.

Throughout the year, the water temperature in Lappeenranta does not rise above 20°C and therefore is not suitable for comfortable swimming. But on some days of July, August, the water temperature warms up to 20°C and above. The average water temperature in Lappeenranta in winter reaches 1.3°C, in spring 2.5°C, in summer the average temperature rises to 16.7°C, and in autumn it is 9.6°C.

Lappeenranta water temperature now

Surf Forecast in Lappeenranta for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Lappeenranta. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Lappeenranta. Data in table shown for 30 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Lappeenranta

Lappeenranta weather forecast

Current temperature and weather

Data in a table show Lappeenranta temperature today (30 September 2025). For more information and forecast for a few days, go to the weather forecast Lappeenranta.

0-3 h	3-6 h	6-9 h	9-12 h
7.3°C	6.9°C	6.6°C	7.9°C

12-15 h	15-18 h	18-21 h	21-24 h
9.3°C	10.5°C	9.7°C	8.2°C

Lappeenranta water temperature by month

These figures shows the average, minimum and maximum monthly water temperature in Lappeenranta. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Lappeenranta on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in Lappeenranta

The nearest beaches and cities from Lappeenranta with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Kotka	13.7°C	10°C		0.14 m
Perna	11.1°C	11°C		0.14 m
Porvoo	11.3°C	10°C		0.14 m
Narva-Joesuu	13.4°C	11°C		0.07 m
Sillamae	13.9°C	11°C		0.06 m
Toila	13.7°C	11°C		0.06 m
Vuosaari	13.5°C	11°C		0.15 m
Otaniemi	12.8°C	11°C		0.13 m
Teekkarikylae	12.8°C	11°C		0.13 m
Koukkuniemi	12.9°C	11°C		0.13 m

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Our report for Lappeenranta is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.