Climate and monthly weather forecast
Weather in January
In Uusikaupunki, Finland, the average seawater temperature in January is 0.6°C (33.1°F). Note: Within the context of swimming, this state is extremely cold, dangerous, and can result in death. Weather in January »
Weather in February
The 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: When swimming, this state is excessively cold, posing a lethal risk. Weather in February »
Weather in March
The 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: Within swimming, this is perceived as extraordinarily cold, dangerous, and potentially lethal. Weather in March »
Weather in April
In April, the average sea temperature in Uusikaupunki, Finland, is 0.4°C (32.7°F). Note: In terms of swimming, this condition is dangerously life-threatening. Weather in April »
Weather in May
In Uusikaupunki, Finland, in May, the average water temperature is 3.3°C (37.9°F). Note: In the practice of swimming, this situation poses immediate risks to life. Weather in May »
Weather in June
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 deemed hazardous. Exposure to temperatures below 10°C (50°F) leads to immediate severe cold shock and hyperventilation. Weather in June »
Weather in July
In July, the average sea temperature in Uusikaupunki, Finland, is 12.3°C (54.1°F). Note: Engaging in a swim in 12.3°C (54.1°F) can threaten life. Brief exposure to 13°C (55.4°F) waters is uneasy, and submersion below 10°C (50°F) can lead to cold shock and disrupted breathing patterns, varying by individual. Weather in July »
Weather in August
With an average sea temperature of 13.1°C (55.6°F), August is the month with the warmest seawater in Uusikaupunki, Finland. Note: Swimming in 13.1°C (55.6°F) can be lethal. Weather in August »
Weather in September
In Uusikaupunki, Finland, the average seawater temperature in September is 10.3°C (50.5°F). Note: Diving into 10.3°C (50.5°F) is practical below 10°C (50°F), given you're wearing protective swim gear; without it, expect a quick onset of cold shock and a struggle to breathe. Weather in September »
Weather in October
In Uusikaupunki, Finland, in October, the average water temperature is 6.5°C (43.7°F). Note: Engaging in a swim in 6.5°C (43.7°F) can threaten life. Weather in October »
Weather in November
In Uusikaupunki, Finland, in November, the average water temperature is 4.2°C (39.6°F). Note: In the sphere of swimming, this is extremely cold and poses life-endangering hazards. Weather in November »
Weather in December
In December, the average sea temperature in Uusikaupunki, Finland, is 1.9°C (35.4°F). Note: In the realm of swimming, this is life-threatening and fraught with danger. Weather in December »
Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the months with the coldest sea water in Uusikaupunki?
February and March, with an average sea temperature of -0.3°C (31.5°F), are months with the coldest seawater.
When are the longest days in Uusikaupunki?
June has the longest days of the year in Uusikaupunki, with an average of 19h and 0min of daylight.
What month 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, Finland.
When is Daylight Saving Time (DST) in Uusikaupunki?
On Sunday, 27. October 2024, at 04:00, Daylight Saving Time ends, and the time zone changes from EEST to EET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 03:00, and the time zone reverts from EET to EEST.
What is the month with the shortest days in Uusikaupunki?
December has the shortest days of the year in Uusikaupunki, Finland, with an average of 5h and 48min of daylight.
Average sea temperature
Uusikaupunki, Finland
The best month for swimming (with the highest average sea temperature) is August (13.1°C).
The coldest months (with the lowest average sea temperature) are February and March (-0.3°C).
Average daylight
Uusikaupunki, Finland
- Average daylight in January:
6h and 4min - Average daylight in February:
9h and 1min - Average daylight in March:
11h and 5min - Average daylight in April:
14h and 4min - Average daylight in May:
17h and 2min - Average daylight in June:
19h and 0min
- Average daylight in July:
18h and 1min - Average daylight in August:
15h and 4min - Average daylight in September:
12h and 5min - Average daylight in October:
10h and 1min - Average daylight in November:
7h and 2min - Average daylight in December:
5h and 5min
The month with the longest days is June (Average daylight: 19h and 0min).
The month with the shortest days is December (Average daylight: 5h and 48min).
