Uusikaupunki
Finland
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Uusikaupunki, Finland

In January, the average sea temperature in Uusikaupunki, Finland, is 0.6°C (33.1°F). Note: For swimming, this is considered life-threatening and very dangerous. Weather in January »

February and March, with an average sea temperature of -0.3°C (31.5°F), are months with the coldest seawater in Uusikaupunki, Finland. Note: For swimming, this is considered life-threatening and very dangerous. Weather in February »

Months with the coldest seawater in Uusikaupunki, Finland, are February and March, with an average sea temperature of -0.3°C (31.5°F). Note: For swimming, this is considered life-threatening and very dangerous. Weather in March »

In Uusikaupunki, Finland, the average seawater temperature in April is 0.4°C (32.7°F). Note: For swimming, this is considered life-threatening and very dangerous. Weather in April »

In May, the average sea temperature in Uusikaupunki, Finland, is 3.3°C (37.9°F). Note: For swimming, this is considered very dangerous and immediately life-threatening. Weather in May »

In June, the average sea temperature in Uusikaupunki, Finland, is 8.3°C (46.9°F). Note: Swimming in 8.3°C (46.9°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique. Weather in June »

In Uusikaupunki, Finland, the average seawater temperature in July is 12.3°C (54.1°F). Note: At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Weather in July »

With an average sea temperature of 13.1°C (55.6°F), August is the month with the warmest seawater in Uusikaupunki, Finland. Note: At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Weather in August »

In Uusikaupunki, Finland, in September, the average water temperature is 10.3°C (50.5°F). Note: Swimming in 10.3°C (50.5°F) is considered life-threatening. Weather in September »

In October, the average sea temperature in Uusikaupunki, Finland, is 6.5°C (43.7°F). Note: Swimming in 6.5°C (43.7°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique. Weather in October »

In Uusikaupunki, Finland, in November, the average water temperature is 4.2°C (39.6°F). Note: For swimming, this is considered very dangerous and immediately life-threatening. Weather in November »

In Uusikaupunki, Finland, the average seawater temperature in December is 1.9°C (35.4°F). Note: For swimming, this is considered very dangerous and immediately life-threatening. Weather in December »

What months are the sea coldest in Uusikaupunki?

February and March, with an average sea temperature of -0.3°C (31.5°F), are months with the coldest seawater in Uusikaupunki.

When are the longest days in Uusikaupunki?

June has the longest days of the year in Uusikaupunki, Finland, with an average of 19h of daylight.

When is the sea warmest in Uusikaupunki?

With an average sea temperature of 13.1°C (55.6°F), August is the month with the warmest seawater in Uusikaupunki.

What is the month with the shortest days in Uusikaupunki?

With an average of 5.8h of daylight, December has the shortest days of the year in Uusikaupunki, Finland.
Average sea temperature - Uusikaupunki, Finland

The best month for swimming (with the highest average sea temperature) is August (13.1°C).
Coldest months (with the lowest average sea temperature) are February and March (-0.3°C).

Average daylight - Uusikaupunki, Finland