Senj
Croatia
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Senj, Croatia

August is the best period for swimming and other water activities in Senj, Croatia, as the sea temperature is 25°C (77°F)
In Senj, Croatia, in January, the average water temperature is 12.3°C (54.1°F). Note: Swimming in 12.3°C (54.1°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation. Weather in January »

With an average sea temperature of 11.6°C (52.9°F), February is the month with the coldest seawater in Senj, Croatia. Note: Swimming in 11.6°C (52.9°F) is considered dangerous. Weather in February »

In Senj, Croatia, the average seawater temperature in March is 12.1°C (53.8°F). Note: Swimming in 12.1°C (53.8°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 March »

In April, the average sea temperature in Senj, Croatia, is 14°C (57.2°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 April »

In Senj, Croatia, the average seawater temperature in May is 18.1°C (64.6°F). Note: Swimming in 18.1°C (64.6°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F). Weather in May »

In Senj, Croatia, in June, the average water temperature is 22.6°C (72.7°F). Note: For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. Weather in June »

In July, the average sea temperature in Senj, Croatia, is 24.7°C (76.5°F). Note: For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. Weather in July »

The ideal sea water temperature of 25°C (77°F) make August the best time for swimming and other water activities in Senj, Croatia. The month with the warmest seawater is August, with an average sea temperature of 25°C (77°F). Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable. Weather in August »

In Senj, Croatia, the average seawater temperature in September is 23.7°C (74.7°F). Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 23.7°C (74.7°F) water. Weather in September »

In October, the average sea temperature in Senj, Croatia, is 19.8°C (67.6°F). Note: For swimming, a surface water temperature of 19.8°C (67.6°F) is not enjoyable for the majority. Weather in October »

In Senj, Croatia, in November, the average water temperature is 17.3°C (63.1°F). Note: For swimming, a surface water temperature of 17.3°C (63.1°F) is not enjoyable for the majority. Weather in November »

In Senj, Croatia, the average seawater temperature in December is 14.9°C (58.8°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 December »

When is the sea coldest in Senj?

The month with the coldest seawater in Senj, Croatia, is February, with an average sea temperature of 11.6°C (52.9°F).

When are the longest days in Senj?

June has the longest days of the year in Senj, Croatia, with an average of 15.6h of daylight.

When is the sea warmest in Senj?

With an average sea temperature of 25°C (77°F), August is the month with the warmest seawater in Senj.

What is the month with the shortest days in Senj?

The month with the shortest days is December, with an average of 8.8h of daylight.
Average sea temperature - Senj, Croatia

The best month for swimming (with the highest average sea temperature) is August (25°C).
The coldest month (with the lowest average sea temperature) is February (11.6°C).

Average daylight - Senj, Croatia