The sea temperature in Kostrena is the same as the sea temperature in the city of Rijeka, since Kostrena is part of the city of Rijeka. Due to its exposure to the open sea, the wind plays a major role in the sea temperature in Kostrena, mixing cold deep sea and warm surface sea. The sea temperature in Kostrena is suitable for swimming during all summer months when the average sea temperature is 22 degrees Celsius, and the sea temperature reaches a maximum of 28 degrees Celsius. In the early spring months, as well as winter months, swimming should be avoided as the sea temperature in Kostrena then drops to 8 degrees Celsius. The sea temperature in Kostrena is suitable for swimming even in the month of September, so more and more tourist arrivals and overnight stays are recorded in this month.
It is not recommended to swim because the sea temperature is very low, especially for heart patients and other patients.
Although technically you can bathe at any temperature, which is why some recommend bathing in cold water for various health benefits, the best temperature to bathe at is between 20 and 23°C. For most bathers, this is the ideal temperature, especially because it reduces the chance of shock in older and sick people.
For babies from 0 to 3 months, the minimum temperature at which they should be bathed is 32°C. For those from 3 to 12 months, the temperature can be slightly lower - 30°C. For older children, the temperature should be around 25°C. The temperature of any baby bath should never exceed 35°C.
It is very simple to protect yourself from the sun, just make sure to drink enough water, use sunscreen with a high factor (30+) and avoid the sun when UV radiation and temperature are at their highest, which is from 10 in the morning to 4 in the afternoon.
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