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Suomenlinna
Water Temperature in the Gulf of Finland in Suomenlinna, Finland: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in Suomenlinna in Finland, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Water Temperature in Suomenlinna
-0.2°C
TODAY
0.2°C
YESTERDAY
1.0°C
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Gulf of Finland in Suomenlinna is -0.2°C. Such water is extremely cold and not recommended for swimming without proper preparation. In these conditions, the risk of hypothermia is very high, and prolonged exposure to the water can be hazardous to your health. If you decide to swim, it is important to have the appropriate gear, such as a wetsuit. Typically, only experienced swimmers or those who practice winter swimming venture into such waters.
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 for Gulf of Finland in Suomenlinna Over the Last 30 Days
The water temperature in Suomenlinna today is lower than both a week ago and a month ago. Today's sea temperature is generally in line with historical values for this day.
According to our forecast, the sea temperature in Suomenlinna will remain nearly unchanged in the coming days, its value will be 0.1°C.
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 across Finland to enhance accuracy.
Water temperature data for Suomenlinna and nearby towns and resorts is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.
Table of Daily Sea Temperature Data
Date | Current | Average | Forecast |
---|---|---|---|
Feb 15 | 1.0°C | 0.5°C | |
Feb 16 | 0.8°C | 0.3°C | |
Feb 17 | 0.7°C | 0.3°C | |
Feb 18 | 0.7°C | 0.3°C | |
Feb 19 | 0.4°C | 0.3°C | |
Feb 20 | 0.3°C | 0.3°C | |
Feb 21 | 0.2°C | 0.3°C | |
Feb 22 | 0.0°C | 0.3°C | |
Feb 23 | 0.3°C | -0.2°C | |
Feb 24 | 0.3°C | -0.2°C | |
Feb 25 | 0.5°C | -0.1°C | |
Feb 26 | 0.5°C | -0.0°C | |
Feb 27 | 0.5°C | 0.1°C | |
Feb 28 | 0.5°C | 0.1°C | |
Mar 1 | 0.3°C | 0.1°C | |
Mar 2 | 0.3°C | 0.1°C |
Sea Temperature in Suomenlinna Throughout the Year
Throughout the year, the sea temperature in Suomenlinna exceeds 77°F (25°C) for 0 days, exceeds 72°F (22°C) for 0 days, and exceeds 64°F (18°C) for 31 days.
Below is the annual chart of sea temperature changes in the Gulf of Finland in Suomenlinna.
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January
Minimum | Average | Maximum |
---|---|---|
-1°C | 2°C | 5°C |
February
Minimum | Average | Maximum |
---|---|---|
-1°C | 0.5°C | 2°C |
March
Minimum | Average | Maximum |
---|---|---|
-1°C | 0.5°C | 2°C |
April
Minimum | Average | Maximum |
---|---|---|
-1°C | 2°C | 5°C |
May
Minimum | Average | Maximum |
---|---|---|
1°C | 7°C | 13°C |
June
Minimum | Average | Maximum |
---|---|---|
7°C | 14°C | 21°C |
July
Minimum | Average | Maximum |
---|---|---|
13°C | 19°C | 25°C |
August
Minimum | Average | Maximum |
---|---|---|
14°C | 17.5°C | 21°C |
September
Minimum | Average | Maximum |
---|---|---|
10°C | 14.5°C | 19°C |
October
Minimum | Average | Maximum |
---|---|---|
5°C | 10.5°C | 16°C |
November
Minimum | Average | Maximum |
---|---|---|
2°C | 6.5°C | 11°C |
December
Minimum | Average | Maximum |
---|---|---|
-1°C | 3°C | 7°C |
Monthly Water Temperature Histogram for Gulf of Finland in Suomenlinna
You can explore detailed data on how the water temperature in Suomenlinna varies each month:
What Beaches Are There In and Around Suomenlinna?
Sveaborgs Badstrand
Sveaborgs Badstrand is a 1-stars sandy beach, is located directly in Suomenlinna.
Suomenlinna
Suomenlinna is a 3-stars sandy beach, is located directly in Suomenlinna. There is parking. There are restrooms. There are cafés. It is suitable for surfing.
Uunisaaren Uimaranta
Uunisaaren Uimaranta is a 1-stars sandy beach, located in a 2 km (1 miles) radius of Suomenlinna.
Tervasaaren Uimaranta / Tervasaari Beach
Tervasaaren Uimaranta / Tervasaari Beach is a 1-stars sandy beach, located in a 3 km (2 miles) radius of Suomenlinna.
Merikasarmin Satama
Merikasarmin Satama is a 1-stars sandy beach, located in a 3 km (2 miles) radius of Suomenlinna.
Stensvik
Stensvik is a 1-stars sandy beach, located in a 3 km (2 miles) radius of Suomenlinna.
Rantakallionpuiston Koira-Aitaus
Rantakallionpuiston Koira-Aitaus is a 1-stars sandy beach, located in a 3 km (2 miles) radius of Suomenlinna.
Eiran Ranta
Eiran Ranta is a 1-stars sandy beach, located in a 3 km (2 miles) radius of Suomenlinna.
Hernesaaren Ranta
Hernesaaren Ranta is a 1-stars sandy beach, located in a 3 km (2 miles) radius of Suomenlinna.
Santahaminan Satama
Santahaminan Satama is a 1-stars sandy beach, located in a 3 km (2 miles) radius of Suomenlinna.
Tullisaari Swimming Spot
Tullisaari Swimming Spot is a 1-stars sandy beach, located in a 4 km (2 miles) radius of Suomenlinna.
Mustikkamaan Ranta
Mustikkamaan Ranta is a 1-stars sandy beach, located in a 4 km (2 miles) radius of Suomenlinna.
Sarvaston Venekerho
Sarvaston Venekerho is a 1-stars sandy beach, located in a 4 km (2 miles) radius of Suomenlinna.
Hevossalmen Uimaranta
Hevossalmen Uimaranta is a 1-stars sandy beach, located in a 4 km (2 miles) radius of Suomenlinna.
Pihlajasaaren Naturistiranta
Pihlajasaaren Naturistiranta is a 1-stars sandy beach, located in a 4 km (2 miles) radius of Suomenlinna.
Pihlajasaari Beach
Pihlajasaari Beach is a 1-stars sandy beach, located in a 4 km (2 miles) radius of Suomenlinna. For those who prefer clothing-optional beaches, Pihlajasaari Beach is a designated nudist beach.
Mustikkamaa Beach
Mustikkamaa Beach is a 1-stars sandy beach, located in a 4 km (2 miles) radius of Suomenlinna.
Tuorinniemi Beach
Tuorinniemi Beach is a 1-stars sandy beach, located in a 5 km (3 miles) radius of Suomenlinna.
Porvariskuninkaan Uimaranta
Porvariskuninkaan Uimaranta is a 1-stars sandy beach, located in a 6 km (4 miles) radius of Suomenlinna.
Veijarivuori Beach
Veijarivuori Beach is a 1-stars sandy beach, located in a 6 km (4 miles) radius of Suomenlinna.
Suomenlinna Weather
FEBRUARY 23
0°C / 1°C
broken clouds: 51-84%humidity: 90% | wind: 4 km/h
FEBRUARY 24
1°C / 2°C
overcast clouds: 85-100%humidity: 92% | wind: 5 km/h
FEBRUARY 25
0°C / 2°C
overcast clouds: 85-100%humidity: 97% | wind: 3 km/h
FEBRUARY 26
0°C / 1°C
overcast clouds: 85-100%humidity: 96% | wind: 4 km/h
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
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Sea Temperature in the Gulf of Finland in Suomenlinna: General Trends and Swimming Opportunities
The coastal areas of the Southern Finland Province in Finland typically experience a temperate maritime climate, characterized by relatively mild summers with average high temperatures around 20 degrees Celsius and cold winters with average lows around -5 degrees Celsius. Additionally, precipitation is spread fairly evenly throughout the year, with slightly heavier rainfall during the summer months.
Suomenlinna is located in Europe in the Northern Hemisphere at a latitude of 60 degrees, along the shores of the Gulf of Finland. Suomenlinna lies within the Southern Finland Province in Finland.
The average annual daytime air temperature in Suomenlinna is 8°C (46°F), with the average nighttime temperature being 2°C (36°F). The highest average daily temperature occurs in July, reaching 22°C (72°F), while the lowest is in February at -4°C (25°F). As for nighttime temperatures, the minimum average temperature of -8°C (18°F) is recorded in February, and the maximum is in July, reaching 14°C (57°F).
According to historical data, Suomenlinna experiences 124 rainy days per year, which accounts for 34 percent of all days in the year. On average, there are 10 rainy days each month. The wettest month is December, with 12 rainy days and 55 mm (2.2 inches) of precipitation, while the driest month is April, which typically has 8 rainy days and only 32 mm (1.3 inches) of precipitation.
The average annual water temperature in Gulf of Finland in Suomenlinna is 8°C (46°F). In January, the water reaches its lowest point of the year at -1°C (30°F), while in July, it peaks at 25°C (77°F). In Suomenlinna, the water temperature in the Gulf of Finland never consistently reaches a comfortable level for swimming in any month.
Geographical Location of Suomenlinna
Nearby Cities
Frequently Asked Questions About Suomenlinna and its Water Temperatures
What is the current sea temperature in Suomenlinna?
The water temperature today in the Gulf of Finland in Suomenlinna is 32°F (-0.2°C).
In which months is the water temperature in Suomenlinna comfortable for swimming?
It cannot be guaranteed that the water temperature in Suomenlinna will be comfortable for swimming in any month of the year.
What is the water temperature in Suomenlinna during the winter?
The water temperature in the Gulf of Finland in Suomenlinna during the winter ranges from -1°C to 7°C (30°F to 45°F).
What is the water temperature in Suomenlinna during the spring?
The water temperature in the Gulf of Finland in Suomenlinna during the spring ranges from -1°C to 13°C (30°F to 55°F).
What is the water temperature in Suomenlinna during the summer?
The water temperature in the Gulf of Finland in Suomenlinna during the summer ranges from 7°C to 25°C (45°F to 77°F).
What is the water temperature in Suomenlinna during the fall?
The water temperature in the Gulf of Finland in Suomenlinna during the fall ranges from 2°C to 19°C (36°F to 66°F).
Is it possible to swim in the sea in Suomenlinna at any time of the year?
The Gulf of Finland in Suomenlinna is quite cool, and swimming is only possible in June, July, and August when the water temperature reaches 21°C (70°F).
What sea temperatures can I expect in Suomenlinna in the next month?
In March, the water temperature in the Gulf of Finland in Suomenlinna will range between 30°F (-1°C) and 36°F (2°C)