Climate and monthly weather forecastMosterhamn, Norway
Climate and monthly weather forecast
Weather in January
In Mosterhamn, Norway, in January, the average water temperature is 6.2°C (43.2°F). Note: Being in 6.2°C (43.2°F) waters at 13°C (55.4°F) is discomforting, but anything below 10°C (50°F) can jeopardize breathing and induce cold shock, factoring in physical endurance. Weather in January »Weather in February
In Mosterhamn, Norway, in February, the average water temperature is 5.8°C (42.4°F). Note: You can swim in 5.8°C (42.4°F) below 10°C (50°F) with proper thermal wear; failing that, the cold shock and respiratory challenges are nearly certain. Weather in February »Weather in March
The month with the coldest seawater in Mosterhamn, Norway, is March, with an average sea temperature of 4.8°C (40.6°F). Note: During swimming activities, this situation is lethal and fraught with danger. Weather in March »Weather in April
In April, the average sea temperature in Mosterhamn, Norway, is 6.5°C (43.7°F). Note: Beware of 6.5°C (43.7°F) waters at 13°C (55.4°F), they're uninviting, and a dip below 10°C (50°F) has risks of breath loss and cold shock, contingent on health. Weather in April »Weather in May
In May, the average sea temperature in Mosterhamn, Norway, is 9.2°C (48.6°F). Note: You can swim in 9.2°C (48.6°F) below 10°C (50°F) with proper thermal wear; failing that, the cold shock and respiratory challenges are nearly certain. Weather in May »Weather in June
In June, the average sea temperature in Mosterhamn, Norway, is 12.3°C (54.1°F). Note: Swimming in 12.3°C (54.1°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 »Weather in July
In Mosterhamn, Norway, the average seawater temperature in July is 14.7°C (58.5°F). Note: Engaging in a swim in 14.7°C (58.5°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
August is the month with the warmest seawater in Mosterhamn, Norway, with an average sea temperature of 15.9°C (60.6°F). Note: Swimming in water at 15.9°C (60.6°F) is not a pleasing experience for the majority. Weather in August »Weather in September
In September, the average sea temperature in Mosterhamn, Norway, is 14.8°C (58.6°F). Note: With the appropriate swimsuit, one can swim in 14.8°C (58.6°F) even if temperatures dip below 10°C (50°F); otherwise, be ready for cold shock and breath issues. Weather in September »Weather in October
In Mosterhamn, Norway, in October, the average water temperature is 12.3°C (54.1°F). Note: It is advised against swimming in 12.3°C (54.1°F) when it drops below 10°C (50°F). Weather in October »Weather in November
In Mosterhamn, Norway, in November, the average water temperature is 10.3°C (50.5°F). Note: Dipping in 10.3°C (50.5°F) at temperatures less than 10°C (50°F) without proper gear can lead to pronounced cold shock and breathing difficulties. Weather in November »Weather in December
In Mosterhamn, Norway, the average seawater temperature in December is 8.3°C (46.9°F). Note: While a brief time in 8.3°C (46.9°F) at 13°C (55.4°F) is already bracing, plunging below 10°C (50°F) can severely affect breathing and introduce a cold shock, relying on your physical state. Weather in December »Updated: Jan 26, 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
With an average sea temperature of 4.8°C (40.6°F), March is the month with the coldest seawater in Mosterhamn, Norway.
With an average of 18h and 36min of daylight, June has the longest days of the year.
With an average sea temperature of 15.9°C (60.6°F), August is the month with the warmest seawater in Mosterhamn, Norway.
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends in Mosterhamn, Norway, and the time zone changes from CEST to CET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 02:00, and the time zone reverts from CET to CEST.
With an average of 6h and 6min of daylight, December has the shortest days of the year in Mosterhamn, Norway.
Average sea temperature
Mosterhamn, Norway
The best month for swimming (with the highest average sea temperature) is August (15.9°C).
The coldest month (with the lowest average sea temperature) is March (4.8°C).
Average daylight
Mosterhamn, Norway
- Average daylight in January:
6h and 54min - Average daylight in February:
9h and 12min - Average daylight in March:
11h and 54min - Average daylight in April:
14h and 36min - Average daylight in May:
17h and 6min - Average daylight in June:
18h and 36min
- Average daylight in July:
17h and 48min - Average daylight in August:
15h and 30min - Average daylight in September:
12h and 48min - Average daylight in October:
10h and 6min - Average daylight in November:
7h and 36min - Average daylight in December:
6h and 6min
The month with the longest days is June (Average daylight: 18h and 36min).
The month with the shortest days is December (Average daylight: 6h and 6min).





