Lappeenranta — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lappeenranta, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lappeenranta today is 13.9°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear. It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart Over the Last 30 Days
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| SEP 14 | 14.8°C | 16.0°C | |
| SEP 15 | 14.9°C | 16.0°C | |
| SEP 16 | 14.7°C | 16.0°C | |
| SEP 17 | 14.6°C | 16.0°C | |
| SEP 18 | 14.2°C | 16.0°C | |
| SEP 19 | 14.1°C | 16.0°C | |
| SEP 20 | 14.0°C | 16.0°C | |
| SEP 21 | 13.9°C | 16.0°C | |
| SEP 22 | 16.0°C | 14.0°C | |
| SEP 23 | 16.0°C | 14.1°C | |
| SEP 24 | 16.0°C | 14.2°C | |
| SEP 25 | 16.0°C | 14.3°C | |
| SEP 26 | 16.0°C | 14.4°C | |
| SEP 27 | 16.0°C | 14.5°C | |
| SEP 28 | 16.0°C | 14.6°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 0°C | 3°C | 6°C |
| February | 0°C | 2°C | 5°C |
| March | 0°C | 2°C | 5°C |
| April | 0°C | 4°C | 7°C |
| May | 5°C | 10°C | 15°C |
| June | 10°C | 15°C | 20°C |
| July | 14°C | 19°C | 24°C |
| August | 14°C | 19°C | 24°C |
| September | 11°C | 16°C | 21°C |
| October | 5°C | 9°C | 12°C |
| November | 1°C | 5°C | 8°C |
| December | 0°C | 3°C | 6°C |
Lappeenranta: Weather Forecast
September 21
September 22
September 23
September 24
September 25
September 26
Location & Local Information
Lappeenranta, located in South Karelia in southeastern Finland, lies on the southern shore of Lake Saimaa, Finland’s largest freshwater lake. The city’s landscape is defined by its connection to the lake and nearby smaller water bodies, which provide ideal conditions for swimming and recreation. The water temperature varies through the seasons, following the typical Finnish inland pattern. After the ice melts in late April or early May, the surface temperature is around 4–7 °C (39–45 °F). During early summer, it rises to 13–16 °C (55–61 °F), and in July, the warmest period, the waters around Lappeenranta usually reach 18–22 °C (64–72 °F). Shallow bays and beaches may briefly exceed 23 °C (73 °F). By late September, the water cools below 10 °C (50 °F), and freezing begins again in November.
Swimming in Lappeenranta’s lakes is allowed and very popular during the summer months. The water is clean and safe, and the city maintains several public beaches, such as Myllysaari and Lappeenrannan uimaranta. The calm and scenic environment of Lake Saimaa makes it suitable for both casual swimming and water sports. Although the water can be cool at the beginning and end of the season, mid-summer offers warm, refreshing, and enjoyable swimming conditions.